RIKEN Laser Technology Laboratory
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緑川レーザー物理工学研究室は2016年3月31日をもって終了いたしました!
これまで、当研究室に関わってくださった皆様に心より感謝申し上げます!

2016年4月1日より

光量子工学研究センター(旧名称:光量子工学研究領域) アト秒科学研究チーム

として、引き続き、研究を進めております。
今後ともよろしくお願い申し上げます。





2015

J. Xu, D. Wu, J. Y. Ip, K. Midorikawa, and K. Sugioka: "Vertical sidewall electrodes monolithically integrated into 3D glass microfluidic chips using water-assisted femtosecond-laser fabrication for in situ control of electrotaxis", RSC Adv. 5, 24072-24080 (2015).

N. Nemoto, N. Kanda, R. Imai, K. Konishi, M. Miyoshi, S. Kurashina, T. Sasaki, N. Oda, and M. Kuwata-Gonokami: "High-sensitivity and broadband, real-time terahertz camera incorporating micro-bolometer array with resonant cavity structure", IEEE Trans. THz Sci. Technol., Volume:PP, Issue:99, 108 (2015) DOI:10.1109/TTHZ.2015.2508010

Y. Fu, E. J. Takahashi, Q. Zhang, P. Lu, and K. Midorikawa: “Optimization and characterization of dual-chirped optical parametric amplification", J. Opt. 17, 124001 (2015).

E. J. Takahashi, Y. Fu and K. Midorikawa: "Carrier-envelope phase stabilization of a 16 TW, 10 Hz Ti:sapphire laser", Opt. Lett. 40, 4835 -4838 (2015), doi: 10.1364/OL.40.004835

Y. Fu, E. J. Takahashi and K. Midorikawa: "High-energy infrared femtosecond pulses generated by dual-chirped optical parametric amplification", Opt. Lett. 40(21), 5082-5085 (2015), doi: 10.1364/OL.40.005082

K. Umemura, Y. Sadoya, K. Nagao, R. Oikawa, Y. Hanada, K. Sugioka, and S. Mayama: "Single cell analysis using a glass microchamber for studying movement fluctuations of Navicula pavillardii and Seminavis robusta diatom cells", Micron, 77, 41-43 (2015).

T. Kan, A. Isozaki, N. Kanda, N. Nemoto, K. Konishi, H. Takahashi, M. Kuwata-Gonokami, K. Matsumoto and I. Shimoyama: "Enantiomeric switching of chiral metamaterial for terahertz polarization modulation employing vertically deformable MEMS spirals", Nature Communications 6, 8422 (2015).

E. J. Takahashi, P. Lan, O. D. Muecke, Y. Nabekawa, and K. Midorikawa: "Nonlinear Attosecond Metrology by Intense Isolated Attosecond Pulses", IEEE J. Sel. Top. Quantum Electron, 21(5), 8800112 (2015).

T. Okino, Y. Furukawa, Y. Nabekawa, S. Miyabe, A. A. Eilanlou, E. J. Takahashi, K. Yamanouchi, and K. Midorikawa: "Direct observation of an attosecond electron wave packet in a nitrogen molecule", Sci. Adv. 1, e1500356 (2015).

Y. Nabekawa, Y. Furukawa, T. Okino, A. Amani Eilanlou, E. J. Takahashi, K. Yamanouchi, and K. Midorikawa: "Settling time of a vibrational wavepacket in ionization", Nat. Commun. 6, 8197 (2015); doi: 0.1038/ncomms9197.

Q. Song, A. Nakamura, K. Hirosawa, K. Isobe, K. Midorikawa, and F. Kannari: "Two-dimensional spatiotemporal focusing of femtosecond pulses and its applications in microscopy", Rev. Sci. Instrum., 86, 083701 (2015).

Y. Liao, W. J. Pan, Y. Cui, L. L. Qiao, Y. Bellouard, K. Sugioka, and Y. Cheng: "Formation of in-volume nanogratings with sub-100-nm periods in glass by femtosecond laser irradiation", Opt. Lett. 40, 3623-3626 (2015).

N. Ishikawa, Y. Hanada, I. Ishikawa, K. Sugioka, and K. Midorikawa: "Femtosecond laser-fabricated biochip for studying symbiosis between Phormidium and seedling root", Appl. Phys. B119, 503-508 (2015).

T. Ishikawa, A. Amani Eilanlou, Y. Nabekawa, Y. Fujihira, T. Imahoko, T. Sumiyoshi, F. Kannari, M. Kuwata-Gonokami, and K. Midorikawa: "Kerr lens mode-locked Yb:Lu2O3 bulk ceramic oscillator pumped by a multimode laser diode", Jpn. J. Appl. Phys., 54, 072703, 2015.6.22. (http://dx.doi.org/10.7567/JJAP.54.072703)

Y. Nabekawa, Y. Furukawa, T. Okino, A. Amani Eilanlou, E. J. Takahashi, K. Yamanouchi, and K. Midorikawa: "Frequency-resolved optical gating technique for retrieving the amplitude of a vibrational wavepacke", Sci. Rep. 5, 11366 (2015); doi: 10.1038/srep11366.

T. Kobayashi and Y. Matsuo: "Production of warm aluminum cluster anions by femtosecond laser ablation", Appl. Phys. B, 119, 435-438 (2015).

H. Tomizawa, T. Sato, K. Ogawa, K. Togawa, T. Tanaka, T. Hara, M. Yabashi, H. Tanaka, T. Ishikawa, T. Togashi, S. Matsubara, Y. Okayasu, T. Watanabe, E. J. Takahashi, K. Midorikawa, M. Aoyama, K. Yamakawa, S. Owada, A. Iwasaki and K. Yamanouchi: "Stabilization of a high-order harmonic generation seeded extreme ultraviolet free electron laser by time-synchronization control with electro-optic sampling", High Power Laser Science and Engineering, 3, e14 (2015).

Y. Liao, J. Ni, L. Qiao, M. Huang, Y. Bellouard, K. Sugioka, and Y. Cheng: "High-fidelity visualization of formation of volume nanogratings in porous glass by femtosecond laser irradiation", Optica, 2, 329-334 (2015).




2014

J. Xu, D. Wu, J. Y. Ip, K. Midorikawa, and K. Sugioka: "Vertical sidewall electrodes monolithically integrated into 3D glass microfluidic chips using water-assisted femtosecond-laser fabrication for in situ control of electrotaxis", RSC Adv. 5, 24072-24080 (2015).

D. Wu, J. Xu, L. Niu, S. Wu, K. Midorikawa, and K. Sugioka: "In-channel integration of designable micro optical devices using flat scaffold-supported femtosecond-laser micro fabrication for coupling-free optofluidic cell counting", Light: Sci. & Appl. 4, e228 (2015).

D. Wu, L. G. Niu, S. Z. Wu, J. Xu, K. Midorikawa, and K. Sugioka: "Ship-in-a-bottle femtosecond laser integration of optofluidic microlens arrays with center-pass units enabling coupling-free parallel cell counting with 100% success rate", Lab. Chip. 15, 1515-1523 (2015).

E. Loetstedt and K. Midorikawa: "Ejection of innershell electrons induced by recollision in a laser-driven carbon atom”, Phys. Rev. A 90, 043415 (2014).

A. Amani Eilanlou, Y. Nabekawa, M. Kuwata-Gonokami, and K. Midorikawa: "Femtosecond laser pulses in a Kerr lens mode-locked thin-disk ring oscillator with an intra-cavity peak power beyond 100 MW,” Jpn. J. Appl. Phys. 53, 082701 (2014).

H. Kinoshita, T. Harada, Y. Nagata, T. Watanabe, and K. Midorikawa: "Development of EUV mask inspection system using high-order harmonic generation with a femtosecond laser,” Jpn. J. Appl. Phys. 53, 086701 (2014).

T. Okino, Y. Furukawa, T. Shimizu, Y. Nabekawa, K, Yamanouchi, and K. Midorikawa: "Nonlinear Fourier transformation spectroscopy of small molecules with intense attosecond pulse train,” J. Phys. B 47, 124007 (2014).

D. Wu, S. Z. Wu, J. Xu, L. G. Niu, K. Midorikawa ,and K. Sugioka: "Hybrid femtosecond laser microfabrication to achieve true 3D glass/polymer composite biochips with multiscale features and high performance: the concept of ship-in-a-bottle biochip,” Laser & Photo. Rev. 8, 458-467 (2014).

P. Lan, Y. Zhou, A. N. Pfeiffer, Q. Zhang, P. Lu, and K. Midorikawa: "Revealing the role of electron correlation in sequential double ionization,” Phys. Rev. A 89, 033424 (2014).

S. Nakashima, K. Sugioka, Katsumi Midorikawa, and Kohki Mukai: "Plasmonically coupled Faraday effect in Fe- and Au-doped silicate glasses irradiated with femtosecond laser”, J. Laser Micro/Nanoengin. 9, 132-136 (2014).

A. Matsuda, E. J. Takahashi, and A. Hishikawa: "Time-resolved laser Coulomb explosion imaging using few-cycle intense laser pulses: Application to exploding CS2 in highly charged states”, J. Electron Spectroscopy 195, 327 (2014).

F. He, B. Zeng, W. Chu, J. Ni, K. Sugioka, Y. Cheng, and C. G. Durfee: "Characterization and control of peak intensity distribution at the focus of a spatiotemporally focused femtosecond laser beam”, Opt. Express 22, 9734-9748 (2014).

M. Fule, J. Budai, Z. Szkiva, K. Sugioka, and L. Nanai: "Self repeating surface morphology on ultrashort laser pulse-treated vanadium surface”, J. Laser Micro/Nanoengin. 9, 46-51 (2014).

J. Song, J. Lin, J. Tang, Y. Liao, F. He, Z. Wang, L. Qiao, K. Sugioka, and Ya Cheng: "Fabrication of an integrated high-quality-factor (high-Q) optofluidic sensor by femtosecond laser micromachining”, Opt. Express 22, 14792-14802 (2014).

N. Kanda, K. Konishi, and M. Kuwata-Gonokami: "All-photoinduced terahertz optical activity", Opt. Lett. 39 (11), 3274-3277 (2014).

R. Imai, N. Kanda, T. Higuchi, K. Konishi, and M. Kuwata-Gonokami: "Generation of broadband terahertz vortex beams,” Opt. Lett. 39 (14), 3714?3717 (2014).

N. Nemoto, T. Higuchi, N. Kanda, K. Konishi, and M. Kuwata-Gonokami: "Highly precise and accurate terahertz polarization measurements based on electro-optic sampling with polarization modulation of probe pulses,” Optics Express 22, 17915-17929 (2014).

P. A. Obraztsov, N. Kanda, K. Konishi, M. Kuwata-Gonokami, S. V. Garnov, A. N. Obraztsov, and Y. P. Svirko: "Photon-drag-induced terahertz emission from graphene,” Phys. Rev. B 90, 241416 (2014).





2013

K. Kitano, N. Ishii, N. Kanda, Y. Matsumoto, T. Kanai, M. Kuwata-Gonokami, and J. Itatani: "Orientation of jet-cooled polar molecules with an intense single-cycle THz pulse", Physical Review A, Vol.88, Page 061405, 2013/12/23.

Eiji J. Takahashi, Pengfei Lan, Oliver D. Mucke, Yasuo Nabekawa, and Katsumi Midorikawa: "Attosecond nonlinear optics using gigawatt-scale isolated attosecond pulses", Nat. Commun. 4, 2691, Nat. Commun. 4, 2691, 2013/10/25.

Keisuke Isobe, Takanori Takeda, Kyohei Mochizuki, Qiyuan Song, Akira Suda, Fumihiko Kannari, Hiroyuki Kawano, Akiko Kumagai, Atsushi Miyawaki, and Katsumi Midorikawa: "Enhancement of lateral resolution and optical sectioning capability of two-photon fluorescence microscopy by combining temporal-focusing with structured illumination", Biomedical Optics Express, 4(11), 2396-2410, 2013/10/10.

Erik Loetstedt, and Katsumi Midorikawa: "Laser-induced electron localization in a triatomic molecular ion", Physical Review A, 88( 4), 041402-041406, 2013/10/8.

Koji Sugioka, Miklos FULE、Judit BUDAI、Zsolt SZKIVA、Laszlo NANAI: "Self repeating surface morphology on ultra short laser pulses treated vanadium surface", Proceedings of LAMP 2013, #13-037: A183, 2013/10/03.

Sizhu Wu, Dong Wu, Jian Xu Jian, Haiyu Wang, Testuya Makimura, Koji Sugioka, and Katsumi Midorikaw: "Laser-induced electron localization in a triatomic molecular ion", Absorption mechanism of the second pulse in double-pulse femtosecond laser glass microwelding", Optics Express, 21(20), 24049-24059, 2013/10/1.

Yutaka Nagata, Tetsuo Harada, Masato Nakasuji, Hiroo Kinoshita, and Katsumi Midorikawa: "Development of coherent EUV scatterometry microscope with high-order harmonic for EUV mask inspection", Proc. SPIE 8849, X-Ray Lasers and Coherent X-Ray Sources: Development and Applications X, 884914, 2013/09/30.

Yang Liao, Lingling Qiao, Zhaohui Wang, Min Wang, Lianqing Liu, Koji Sugioka, and Ya Cheng: "Fabrication of a liquid crystal light modulator by use of femtosecond-laser-induced nanoripples", Opt. Mater. Express, 3(10), 1698-1704, 2013/9/23.

Jian Xu, Dong Wu, Yasutaka Hanada, Chi Chen, Sizhu Wu, Ya Cheng, Koji Sugioka, and Katsumi Midorikawa: "Electrofluidics fabricated by space-selective metallization in glass microfluidic structures using femtosecond laser direct writing", Lab Chip, 13, 4608-4616, 2013/09/17.

Keisuke Isobe, Hiroyuki Kawano, Akiko Kumagai, Atsushi Miyawaki, and Katsumi Midorikawa: "Implementation of spatial overlap modulation nonlinear optical microscopy using an electro-optic deflector", Biomedical Optics Express, Vol. 4, No. 10, Page 1937-1945, 2013/09/01.

Keisuke Isobe, Hiroyuki Kawano, Akira Suda, Akiko Kumagai, Atsushi Miyawaki, and Katsumi Midorikawa: "Simultaneous imaging of two-photon absorption and stimulated Raman scattering by spatial overlap modulation nonlinear optical microscopy", Biomedical Optics Express, Vol. 4, No. 9, Page 1548-1558, 2013/09/01.

T. Sato, A. Iwasaki, S. Owada, K. Yamanouchi, E. J. Takahashi, K. Midorikawa et al.: "Full-coherent free electron laser seeded by 13th- and 15th-order hamonics of near-infrared femtosecond laser pulses", J. Phys. B 46(16), 164006, doi:10.1088/0953-4075/46/16/164006, 2013/08/13.

M. Sato, T. Higuchi, N. Kanda, K. Konishi, K. Yoshioka, T. Suzuki, K. Misawa and M. Kuwata-Gonokami: "Terahertz polarization pulse shaping with arbitrary field control", Nature Photonics, Vol.7, 724, 2013/8/11.

T. Sato, A. Iwasaki, S. Owada, K. Yamanouchi, E. J. Takahashi, K. Midorikawa et al.: "Full-coherent free electron laser seeded by 13th- and 15th-order hamonics of near-infrared femtosecond laser pulses", J. Phys. B 46(16), 164006, doi:10.1088/0953-4075/46/16/164006, 2013/08/13.

Changning Liu, Yang Liao, Fei He, Jiangxin Song, Di Lin, Ya Cheng, Koji Sugioka, and Katsumi Midorikawa: "Compact 3D Microfluidic Channel Structures Embedded in Glass Fabricated by Femtosecond Laser Direct Writing", J. Laser Micro/Nanoengin. 8(2), 170-174, 2013/8/1.

Tetsuo Harada, Masato Nakasuji, Yutaka Nagata, Takeo Watanabe, and Hiroo Kinoshita: "Phase imaging of EUV masks using a lensless EUV microscope", Proc. SPIE 8701, Photomask and Next-Generation Lithography Mask Technology XX, 870119, 2013/07/09.

Hiroo Kinoshita, Takeo Watanabe, Tetsuo Harada, and Yutaka Nagata: "Recent activities on extreme ultraviolet lithography in NewSUBARU", Jpn. J. Appl. Phys. 52、06GA01, 2013/06/20.

Tetsuo Harada, Masato Nakasuji, Yutaka Nagata, Takeo Watanabe, and Hiroo Kinoshita: "Phase imaging of extreme ultraviolet mask using coherent extreme ultraviolet scatterometry microscope", Jpn. J. Appl. Phys. 52, 06GB02, 2013/06/20.

Fadhil A. Umran, Yang Liao, Mazin M. Elias, Koji Sugioka, Razvan Stoian, Guanghua Cheng, and Ya Cheng: "Formation of nanogratings in a transparent material with tunable ionization property by femtosecond laser irradiation", Opt. Express, 21(13), 15259-15267, 2013/6/18.

Seisuke Nakashima, Koji Sugioka, Katsuhisa Tanaka, Katsumi Midorikawa, and Kohki Mukai: "Optical and magneto-optical properties in Fe-doped glasses irradiated with femtosecond laser", Applied Physics B, Vol.113, 451-456, 2013/6/13.

T. Kan, A. Isozaki, N. Kanda, N. Nemoto, K. Konishi, M. Kuwata-Gonokami, K. Matsumoto, and I. Shimoyama: "Spiral metamaterial for active tuning of optical activity", Applied Physics Letters, Vol. 102, 221906, 2013/6/5.

Pengfei Lan, Eiji Takahashi, Kunlong Liu, Yuxi Fu, and Katsumi Midorikawa: "Carrier envelope phase dependence of electron localization in the multicycle regime", New Journal of Physics, vol.15, page.063023, 2013/06/01.

Tohro Kobayashi and Yukari Matsuo: "Reassembling Solid Materials by Femtosecond Laser Ablation: Case of Aluminum Nitride", Applied Physics Express, Vol.6, 066301, 2013/5/30.

Jintian Lin, Yingxin Xu, Jiangxin Song, Bin Zeng, Fei He, Huailiang Xu, Koji Sugioka, Wei Fang, and Ya Cheng: "Low-threshold whispering-gallery-mode microlasers fabricated in a Nd:glass substrate by three-dimensional femtosecond laser micromachining", Opt. Lett. 38(9), 1458-1460, 2013/04/25.

Z. Zheng, N. Kanda, K. Konishi, and M. Kuwata-Gonokami: "Efficient coupling of propagating broadband terahertz radial beams to metal wires", Optics Express, 21(9), 10642, 2013/4/24.

Yang Liao, Ya Cheng, Changning Liu, Jiangxin Song, Fei He, Yinglong Shen, Danping Chen, Zhizhan Xu, Zhichao Fan, Xubin Wei, Koji Sugioka, and Katsumi Midorikawa: "Direct laser writing of sub-50nm nanofluidic channels buried in glass for three-dimensional micro-nanofluidic integration", Lab Chip, 13(8), 1626-1631, 2013/04/21.

Y. Nabekawa, T. Shimizu, Y. Furukawa, E. J. Takahashi, and K. Midorikawa: "Interferometry of an attosecond pulse train generated from Xe gas target", Chem. Phys. 414, 20-25 (2013). 2013/03/12.

Sesuke Nakashima, Koji Sugioka, Katsumi Midorikawa, and Kohki Mukai: "Spatially selective modification of optical and magneto-optical properties in Fe- and Au-doped glasses irradiated with femtosecond-laser", Appl. Phys. A, 110(4), 765-769, 2013/03/01.

Erik Loetstedt and Katsumi Midorikawa: "Effect of the laser magnetic field on nonsequential double ionization of He, Li+ and Be2+", Phys. Rev. A, 87, 013426, 2013/01/24.

Yang Liao, Yinglong Shen, Lingling Qiao, Danping Chen, Ya Cheng, Koji Sugioka, and Katsumi Midorikawa: "Femtosecond laser nanostructuring in porous glass with sub-50nm feature sizes”, Opt. Lett. 38(2),187-189, 2013/01/15.



2012

S. Wu, D. Wu, J. Xu, Y. Hanada, R. Suganuma, H. Wang, T. Makimura, K. Sugioka, and K. Midorikawa: "Characterization and mechanism of glass microwelding by double-pulse ultrafast laser irradiation", Opt. Express 20, 28893-28905 (2012).

S. Nakashima, K. Sugioka, K. Tanaka, M. Shimizu, Y. Shimotsuma, K. Miura, K. Midorikawa, and K. Mukai: "Plasmonically enhanced Faraday effect in metal and ferrite nanoparticles composite precipitated inside glass", Opt. Express 20, 28191-28199 (2012).

J. X. Song, Y. Liao, C. N. Liu, D. Lin, L. L. Qiao, Y. Cheng, K. Sugioka, K. Midorikawa, and S. Zhang: "Fabrication of gold microelectrodes on a glass substrate by femtosecond-laser-assisted electroless plating", J. Laser Micro/Nanoengin. 7, 334-338 (2012).

K. Midorikawa: "X-ray and EUV sources", Handbook of Lasers and Optics, 907-916, 2012.

T. Kanai, T. Azuma, and K. Midorikawa: "Development of High Power Infrared Optical arametric Amplification Laser System Seeded y Self-difference Frequency Generation Pulses", Springer Proceedings in Physics 125: Multiphoton Processes and Attosecond Physics, 45-47, 2012.

T. Kanai, Y. Fu, Y. Kanba, S. Bohman, Takuya Kanai, S. Yamaguchi, E. J. Takahashi, Y. Nabekawa, A. Suda, and K. Midorikawa: "Generation of Highly Phase-Matched Isolated ttosecond Pulses Using Multi-mJ, arrier-Envelope Phase Stabilized, Few-Cycle aser Pulses", Springer Proceedings in Physics 125: Multiphoton Processes and Attosecond Physics, 105-107, 2012.

K. Isobe and K. Midorikawa: "Nonlinear optical microscopy for super-resolution deep imaging", Oplus E, 34(9), 870-875, 2012. (in Japanese)

Y. Furukawa, Y. Nabekawa, T. Okino, A. Amani Eilanlou, E. J. Takahashi, P. Lan, K. Ishikawa, T. Sato, K. Yamanouchi, and K. Midorikawa: "Resolving vibrational wave-packet dynamics of D2 using multicolor probe pulses", Opt. Lett., 37(14), 2922-2924, 2012.

Y. Kojima, A. Amani Eilanlou, Y. Furukawa, Y. Nabekawa, E. J. Takahashi, F. Kannari, and K. Midorikawa: "Material survey for a novel beam splitter separating high-order harmonics from high-average-power fundamental pulses", Jpn. J. Appl. Phys., 51, 062601/1-6, 2012.

K. Isobe, H. Kawano, T. Takeda, A. Suda, A. Kumagai, H. Mizuno, A. Miyawaki, and K. Midorikawa: "Background-free deep imaging by spatial overlap modulation nonlinear optical microscopy", Biomed. Opt. Express, 3(7), 1594-1608, 2012.

A. Amani Eilanlou, K. Ishikawa, Y. Nabekawa, H. Takahashi, and K. Midorikawa: "Simulation of intense isolated attosecond pulse generation with a two-color laser field", IEEJ Transactions on Electronics, Information and Systems, 132(8), 1265-1272, 2012.

K. Midorikawa: "Multiphoton Processes and Attosecond Physics", Springer Proceedings in Physics 125: Multiphoton Processes and Attosecond Physics , 2012.

Y. Hanada, K. Sugioka, and K. Midorikawa: "High sensitive concentration analysis of biochemical liquids using a microfluidic chip fabricated by femtosecond laser", Proc. of SPIE photonics west 2012, 1-6, 2012.

C. N. Liu, Y. Liao, F. He, Y. Shen, D. Chen, Y. Cheng, Z. Xu, K. Sugioka, K. Midorikawa: "Fabrication of three-dimensional microfluidic channels inside glass using nanosecond laser direct writing", Opt. Exp., 20(4), 4291-4296, 2012 .

Y. Liao, J. Song, E. Li, Y. Luo, Y. Shen, D. Chen, Y. Cheng, Z. Xu, K. Sugioka, and K. Midorikawa: "Rapid prototyping of three-dimensional microfluidic mixers in glass by femtosecond laser direct writing", Lab Chip, 12, 746-749, 2012.

K. Sugioka, Y. Hanada, K. Midorikawa, H. Kawano, I. Ishikawa, and A. Miyawaki: "3D microstructuring inside glass by ultrafast laser", Proc. SPIE-Int. Soc. Opt. Eng., 8206, 820604/1-12, 2012.



2011

K. Midorikawa : "Attosecond nonlinear spectroscopy by high-order harmonics", Proc. 20th Int. Conf.: Laser Spectroscopy ICOLS20, 103-110, 2011.

N. Miyauchi, J. Adachi, A. Yagishita, T. Sato, F. Koike, T Sato, A. Iwasaki, T. Okino, K. Yamanouchi, K. Midorikawa, K. Yamakawa, F. Kannari, H. Nakano, M. Nagasono, K. Tono, M. Yabashi, T. Ishikawa, T. Togashi, H. Ohashi, H. Kimura, and Y. Senba: "Three-photon double ionization of Arstudied by Photoelectron spectroscopy using an extreme ultraviolet free-electron laser:manifestation of resonance states of an intermediate Ar+ ion, J.Phys.B:At.Mol.Opt.Phys., 44, 071001/1-7, 2011.

Y. Hanada, K. Sugioka, and K. Midorikawa: "Concentration analysis of fluids using optofluidics fabricated by femtosecond laser", Proc. LPM2011, 1-4, 2011.

Y. Hanada, K. Sugioka, H. Kawano, I. Ishikawa, A. Miyawaki, and K. Midorikawa: "Integrated nanoaquariums fabricated by femtosecond laser for mechanism study of cyanobacteria's gliding", Proc. 2011 IEEE ISOT2011, 1-2, 2011.

Y. Hanada, K. Sugioka, I. Ishikawa, H. Kawano, A. Miyawaki, and K. Midorikawa: "3D microfluidic chips with integrated functional microelements fabricated by a femtosecond laser for studying the gliding mechanism of cyanobacteria", Lab Chip, 11, 2109, 2011.

F. He, Y. Cheng, J. Lin, J. Ni, Z. Xu, K. Sugioka, and K. Midorikawa: "Independent control of aspect ratios in the axial and lateral cross sections of a focal spot for three-dimensional femtosecond laser micromachining", New J. Phys., 13, 083014/1-13, 2011.

K. Sugioka, M. Iida, H. Takai, and K. Midorikawa: "Efficient microwelding of glass substrates by ultrafast laser irradiation using a double-pulse train", Opt. Lett., 36(14), 2734-2736, 2011.

Y. Ju, Y. Liao, L. Zhang, Y. Shen, Q. Zhang, D. Chen, Y. Cheng, Z. Xu, K. Sugioka, and K. Midorikawa: "Fabrication of large-volume microfluidic chamber embedded in glass using three-dimensional femtosecond laser micromachining", Microfluid. Nanofluid., 111-117, 2011.

L. Qiao, F. He, C. Wang, Y. Liao, Y. Cheng, K. Sugioka, K. Midorikawa, C. Pan, X. Wei: "Fabrication of a micro-optical lens using femtosecond laser 3D micromachining for two-photon imaging of bio-tissues", Opt. Commun., 284(12), 2988-2991, 2011.

K. Sugioka, Y. Hanada , K. Midorikawa, H. Kawano, I. Ishikawa, A. Miyawaki: "Nanoaquarium: integrated microchips fabricated by ultrafast laser for understanding phenomena and functions of microorganisms", Proc. SPIE-Int. Soc. Opt. Eng., 8204, 820427/1-11, 2011.

S. Nakashima, K. Sugioka, T. Ito, H. Takai, and K. Midorikawa: "Nanofabrication of GaN surfaces by ultrashort laser pulses", Proc. SPIE-Int. Soc. Opt. Eng., 7996, 79960G/1-12, 2011.

J. Xu, S. Beke, K. Sugioka, and K. Midorikawa: "Formation of adhesive metal microstructures inside glass by femtosecond laser direct writing", Proc. LPM 2011, 1-5, 2011.

K. Sugioka, M. Iida, H. Takai, and K. Midorikawa: "Efficient microwelding of glass by double pulse irradiation of ultrafast laser beam", Proc. LPM 2011, 1-4, 2011.

S. Nakashima, K. Sugioka, K. Midorikawa, and K. Mukai: "Effect of femtosecond-laser irradiation on magnetic and optical properties in Au- and Fe-doped transparent glass, Proc. LPM 2011, 1-5, 2011.

S. Beke, K. Korosi, J. Xu, K. Sugioka, and K. Midorikawa: "Fabrication of transparent and conductive microdevices", Proc. LPM 2011, 1-4, 2011.

Y. Liao, Y. Ju, C. N. Liu, Y. Cheng, Z. Xu, K. Sugioka, and K. Midorikawa: "3D microfluidic structures directly fabricated in mesoporous glass by water-assisted femtosecond laser direct writing", Proc. LPM 2011, 1-4, 2011:

X. Yu, Y. Liao, F. He, B. Zeng, Y. Cheng, Z. Xu, K. Sugioka, and K. Midorikawa: "Tuning etch selectivity of fused silica irradiated by femtosecond laser pulses by controlling polarization of the writing pulses", J. Appl. Phys., 109, 053114/1-5, 2011.

T. Harada, K. Matsuishi, Y. Oishi, K. Isobe, A. Suda, H. Kawano, H. Mizuno, A. Miyawaki, K Midorikawa, and F. Kannari : " Temporal control of local plasmon distribution on Au nanocrosses by ultra-broadband femtosecond laser pulses and its application for selective two-photon excitation of multiple fluorophores ", Opt. Exp., 19(14), 13618-13627, 2011.

K. Midorikawa : " High-order harmonic generation and attosecond science", Jpn. J. Appl. Phys., 50, 090001/1-12, 2011.

K. Midorikawa : " Ultrafast dynamic imaging", Nat. Photonics, 5, 640-641, 2011.

T. Kobayashi and Y. Matsuo : " Hydrogenation of fragment cations produced by femtosecond laser ablation of boron nitride", J. Chem. Phys., 135(20), 204504/1-5, 2011.

S. Nakashima, K. Sugioka, and K. Midorikawa : " Space-selective modification of magnetic properties in Fe3+-doped transparent glass by irradiation with femtosecond laser ", Appl. Phys. A, 104(3), 993-996, 2011.

T. Sato, A. Iwasaki, K. Ishibashi, T. Okino, K. Yamanouchi, J. Adachi, A. Yagishita,H. Yazawa, F. Kannari , M. Aoyama, K. Yamakawa, K. Midorikawa, H. Nakano, M. Yabashi, M. Nagasono, A. Higashiya, and T. Ishikawa Tetsuya: " Determination of the absolute two-photon ionization cross section of He by an XUV free electron laser", J. Phys. B, 44(16), 161001/1-5, 2011.

T. Kanai, E. J. Takahashi, Y. Nabekawa, and K. Midorikawa: " Harmonic Generation in Mixed Gases and Its Application to Attosecond Physics", Jpn. J. Optics, 40(3), 136-141, 2011. (in Japanese)

Q. Zhang, E. J. Takahashi, O. D. Mueke, P. Lu and K. Midorikawa : " Dual-chirped optical parametric amplification for generating few hundred mJ infrared pulses ", Opt. Exp., 19(8), 7190-7212, 2011.

T. Kobayashi and Y. Matsuo : " Study on the Carbon Fragment Anions Produced by Femtosecond Laser Ablation of Solid C60 ", J. Chem. Phys. 134, 064320, 2011.

S. Nakashima, K. Sugioka, T. Ito, H. Takai and K. Midorikawa : " Fabrication of high-aspect-ratio nanohole arrays on GaN surface by using wet-chemical-assisted femtosecond laser ablation ", J. Laser Micro/Nanoengin. 6, 15-19, 2011.

T. Togashi, E. J. Takahashi, K. Midorikawa, M. Aoyama, K. Yamakawa, T. Sato, A. Iwasaki, S. Owada, T. Okino, K. Yamanouchi, F. Kannari, A. Yagishita, H. Nakano, M. E. Couprie, K. Fukami, T. Hatsui, T. Hara, T. Kameshima, H. Kitamura, N. Kumagai, S. Matsubara, M. Nagasono, H. Ohashi, T. Ohshima, Y. Otake, T. Shintake, K. Tamasaku, H. Tanaka, T. Tanaka, K. Togawa, H. Tomizawa, T. Watanabe, M. Yabashi, and T. Ishikawa Tetsuya: " Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti:sapphire laser", Opt. Exp., 19(1), 317-324, 2011.

L. Qiao, F. He, C. Wang, Y. Cheng, K. Sugioka, and K. Midorikawa : " A microfluidic chip integrated with a microoptical lens fabricated by femtosecond laser micromachining ", Appl. Phys. A, 102, 179-183, 2011.

S. Beke, L. Korosi, K. Sugioka, K. Midorikawa, and I. Dekany : " Three-dimensionally embedded indium tin oxide (ITO) films in photosensitive glass: a transparent and conductive platform for microdevices (Rapid Communication) ", Appl. Phys. A: Materials Science & Processing, 102, 265-269, 2011.

S. Beke : " A review of the growth of V2O5 films from 1885 to 2010 (Special Feature Article) ", Thin Solid Films, 519, 1761-1771, 2011.

S. Beke, T. Kobayashi, K. Sugioka, K. Midorikawa, and J. Bonse : "Time of flight mass spectroscopy of femtosecond and nanosecond laser ablated TeO2 crystals", Int. J. Mass Spectrom., 299, 5-8, 2011.

S. Beke : "Pulsed laser deposition of V2O5 and time-of-flight analysis of the laser-induced plasma (invited book chapter)", Laser-Induced Plasmas: Theory and Applications, Nova Science Publishers, New York, USA, 2011.

S. Beke, K. Sugioka, K. Midorikawa, and J. Bonse : "Nanosecond and femtosecond laser ablation of TeO2 crystals: surface characterization and plasma analysis (invited book chapter), Laser-Induced Plasmas: Theory and Applications, Nova Science Publishers, New York, USA, 2011.



2010

F. He, Y. Cheng, L. Qiao, C. Wang, Z. Xu, K. Sugioka, K. Midorikawa, and J. Wu: " Two-photon fluorescence excitation with a microlens fabricated on the fused silica chip by femtosecond laser micromachining ", Appl. Phys. Lett., 96, 041108, 2010.

Y. Liao, M. Huan, Y. Ju, F. Luo, Y. Cheng, Z. Xu, K. Sugioka, and K. Midorikawa: " Alignment of liquid crystal molecules in a micro-cell fabricated by femtosecond laser ", Chem. Phys. Lett. 498, 188-191, 2010.

Y. Liao, Y. Ju, L. Zhang, F. He, Q. Zhang, Y. Shen. D. Chen, M. Huan, Y. Cheng, Z. Xu, K. Sugioka, and K. Midorikawa: " Three-dimensional microfluidic channel with arbitrary length and configuration fabricated inside glass by femtosecond laser direct writing ", Opt. Lett. 35, 3225-3227, 2010.

S. Nakashima, K. Sugioka, and K. Midorikawa: " Enhancement of resolution and quality of nano-hole structure on GaN substrates using the second-harmonic beam of near-infrared femtosecond laser ", Appl. Phys. A101, 475-481, 2010.

F. He, H. Xu, Y. Cheng, J. Ni, H. Xiong, Z. Xu, K. Sugioka, and K. Midorikawa: " Fabrication of microfluidic channels with a circular cross section using spatiotemporally focused femtosecond laser pulses", Opt. Lett. 35, 1106-1108, 2010.

Y. Furukawa, Y. Nabekawa, T. Okino, S. Saugout, K. Yamanouchi, and K. Midorikawa: " Nonlinear Fourier-transform spectroscopy of D2 using high-order harmonic radiation ", Phys. Rev. A82, 013421, 2010.

E. J. Takahashi, P. Lan, O. D. Mueck, Y. Nabekawa and K. Midorikawa: " Infrared Two-Color Multicycle Laser Field Synthesis for Generating an Intense Attosecond Pulse ", Phys. Rev. Lett. 104, 233901, 2010.

P. Lan, E. J. Takahashi, and K. Midorikawa: " Wavelength scaling of efficient high-order harmonic generation by two-color infrared laser fields ", Phys. Rev. A, 81, 061802(R), 2010.

E. J. Takahashi, T. Kanai and K. Midorikawa: "High-order harmonic generation by an ultrafast infrared pulse ", Appl. Phys. B 100, 29, 2010.

M. Kurata-Nishimura, Y. Ando, T. Kobayashi, Y. Matsuo, H. Suzuki, Y. Hayashizaki, J. Kawai: "Sequencing of Isotope-Labeled Small RNA Using Femtosecond Laser Ablation Time-of-Flight Mass Spectrometry", Appl. Phys. Express 3, 047002, 2010.

K. Isobe, A. Suda, H. Hashimoto, F. Kannari, H. Kawano, H. Mizuno, A.Miyawaki, and K. Midorikawa: " High-resolution fluorescence microscopy based on a cyclic sequential multiphoton process ", Biomed. Opt. Express, 1, 791-797, 2010.

A. Amani Eilanlou, Y. Nabekawa, K. L. Ishikawa, H. Takahashi, E. J. Takahashi, and K. Midorikawa: " Frequency modulation of high-order harmonic fields with synthesis of two-color laser fields ", Opt. Express 18, 24619-24631, 2010.

K. Isobe, H. Hashimoto, A. Suda, F. Kannari, H. Kawano, H. Mizuno, A. Miyawaki, and K. Midorikawa : "Measurement of two-photon excitation spectrum used to photoconvert a fluorescent protein (Kaede) by nonlinear Fourier-transform spectroscopy", Biomed. Opt. Express 1, Vol. 1, 687-693, 2010.

H. Hashimoto, K. Isobe, A. Suda, F. Kannari, H. Kawano, H. Mizuno, A. Miyawaki, and K. Midorikawa: "Measurement of two-photon excitation spectra of fluorescent proteins with nonlinear Fourier-transform spectroscopy", Appl. Opt. Vol. 49, 3323-3329, 2010.

K. Isobe, A. Suda, M. Tanaka, H. Hashimoto, F. Kannari, H. Kawano, H. Mizuno, A. Miyawaki, and K. Midorikawa : "Nonlinear optical microscopy and spectroscopy employing octave spanning pulses", IEEE J. Sel. Top. Quant. Electron. Vol. 16, 767-780, 2010.

L. Korosi, S. Papp, S. Beke, A. Oszko, and I. Dekany : "Effects of phosphate modification on the structure and surface properties of ordered mesoporous SnO2 ", Microporous and Mesoporous Materials, 134, 79-86, 2010.

S. Bohman, A. Suda, T. Kanai, S. Yamaguchi, and K. Midorikawa : "Generation of 5.0 fs, 5.0 mJ pulses at 1 kHz using hollow-fiber pulse compression ", Opt. Lett., 35(11), 1887-1889, 2010.

Y. Hanada, K. Sugioka, and K. Midorikawa: "UV waveguides light fabricated in fluoropolymer CYTOP by femtosecond laser direct writing", Opt. Exp., 18(2), 446-450, 2010.

Z. Zhou, J. Xu, F. He, Y. Liao, Y. Cheng, K. Sugioka, and K. Midorikawa: "Surface-enhanced Raman scattering substrate fabricated by femtosecond laser induced co-deposition of silver nanoparticles and fluorescent molecules", Jpn. J. Appl. Phys., 49, 022703/1-4, 2010.

Y. Hanada, K. Sugioka, I. Ishikawa, H. Kawano, A. Miyawaki, and K. Midorikawa: "Nano-aquarium fabrication with cut-off filters for mechanism study of Phormidium assemblage", Proc. SPIE, Vol.7584, 75840Q, 2010.

S. Beke, K. Sugioka, K. Midorikawa, and J. Bonse: "Near-IR femtosecond and VUV nanosecond laser processing of TeO2 crystals", Proc. SPIE, Vol. 7584, 758415/1-10, 2010.

K. R. Pandiri, T. Suzuki, A. Suda, K. Midorikawa, and M. Katsuragawa: "Line-by-line control of 10-THz-frequency-spacing Raman sidebands", Opt. Exp, 18(2), 732-739, 2010.

S. Beke, K. Sugioka, K. Midorikawa, A. Peter, L. Nanai, and J. Bonse: "Characterization of the ablation of TeO2 crystals in air with femtosecond laser pulses", J. Phys. D: Appl. Phys., 43, 025401/1-6, 2010.

F. He, Y. Cheng, Z. Xu, Y. Liao, J. Xu, H. Sun, C. Wang, Z. Zhou, K. Sugioka, K. Midorikawa, Y. Xu, and X. Chen: "Direct fabrication of homogeneous microfluidic channels embedded in fused silica using a femtosecond laser", Opt. Lett., 35(3), 282-284, 2010.

T. Kanai, E. J. Takahashi, Y. Nabekawa, and K. Midorikawa: " High harmonic generation in mixed gases and its application to attosecond physics ", Kogaku, 40, accepted.


2009

M. Hatayama, H. Takenaka, E. M. Gullikson, A. Suda, and K. Midorikawa: "High-transmittance free-standing aluminum extreme ultraviolet filter", Jpn. J. Appl. Phys., 48(12), 122202/1-4, 2009.

M. Nishimura, T. Kobayashi, Y. Matsuo, T. Motobayashi, Y. Hayashizaki, and J. Kawai: "Dynamics of Ablation Plasma induced by a Femtosecond Laser Pulse in Electric Fields ", Appl. Surf. Sci., 255, 9729-9733, 2009.

T. Kobayashi, Y. Matsuo, M. Nishimura, Y. Hayashizaki, and J. Kawai: "Hydrogenation of carbon fragments after femtosecond laser ablation of solid C60", Appl. Surf. Sci., 255, 9652-9654, 2009.

T. Nakajima, Y. Matsuo, and T. Kobayashi: "First step toward ultrafast nuclear-spin polarization: All-optical control and direct detection of ultrafast electron-spin polarization using fs laser pulses ", AIP Conf. Proc., 1149, 876-879, 2009.

Y. Liao, J. Xu, Y. Cheng, Z. Xu, K. Sugioka, and K. Midorikawa: "Electro-optic integration of embedded electrodes and waveguides in LiNbO3 with a femtosecond laser", Proc. LAMP 2009, 09-068/1-3, 2009.

F. He, Y. Cheng, Z. Xu, K. Sugioka,and K. Midorikawa: "Rapid fabrication of optical volume gratings in Foturan glass by femtosecond laser micromaching", Proc. LAMP 2009, 09-024/1-4, 2009.

S. Nakashima, K. Sugioka, and K. Midorikawa: "Micro and Nanofabrication of GaN by Wet-Chemical-Assisted Femtosecond Laser Ablation ", Proc. NMHMT2009, 18367, 2009.

Y. Hanada, K. Sugioka, H. Kawano, I.S. Ishikawa, A. Miyawaki, and K. Midorikawa: "Nano-aquarium with microfluidic structures for dynamic analysis of Cryptomonas and Phormidium fabricated by femtosecond laser direct writing of photostructurable glass", Appl. Surf. Sci., 225, 9893-9897, 2009.

Y. Hanada, K. Sugioka, H. Kawano, T. Tsuchimoto, I. Miyamoto, A. Miyawaki, and K. Midorikawa "Selective cell culture on UV transparent polymer by F2 laser surface modification", Appl. Surf. Sci., 225, 9885-9888, 2009.

S. Nakashima, K. Sugioka, and K. Midorikawa: "Fabrication of microchannels in single-crystal GaN by wet-chemical-assisted femtosecond laser ablation", Appl. Surf. Sci., 255(24), 9770-9774, 2009.

F. He, H. Sun, M. Huang, J. Xu, Y. Liao, Z. Zhou, Y. Cheng, Z.Xu, K. Sugioka, and K. Midorikawa: "Rapid fabrication of optical volume gratings in Foturan glass by femtosecond laser micromachining", Appl. Phys. A, 97, 853-857, 2009 .

M. Hatayama, H. Takenaka, E. M. Gullikson, A. Suda, and K. Midorikawa: "Broadband EUV multilayer mirror for supercontinuum light at photon energies of 35-65 eV ", Appl. Opt., 48 29, 5464-5466, 2009.

K. Isobe, A. Suda, H. Hashimoto, F. Kannari, H. Kawano, H. Mizuno, A. Miyawaki, and K. Midorikawa: "Multifarious two-photon fluorescence microscopy employing ultrabroadband femtosecond laser pulses ", AIP Conference Proceedings, vol. 1150, Frontiers in Physics: 3rd International Meeting, 43-49, 2009.

K. Isobe, A. Suda, M. Tanaka, F. Kannari, H. Kawano, H. Mizuno, A. Miyawaki, and K. Midorikawa: "Selective excitation in nonlinear microscopy by using an ultra-broadband pulse ", Ultrafast Phenomena XVI, 1006-1008, 2009

H. Xiong, H. Xu, Y. Fu, J. Yao, B. Zeng, W. Chu,Y. Cheng,Z. Xu, E. J. Takahashi, K. Midorikawa, X. Liu, and J. Chen: "Generation of a coherent x ray in the water window region at 1 kHz repetition rate using a mid-infrared pump source", Opt. Lett. 34, 1747, 2009.

K. L. Ishikawa, E. J. Takahashi, and K. Midorikawa: "Wavelength dependence of high-order harmonic generation with independently controlled ionization and ponderomotive energy", Phys. Rev. A 80, 011807(R), 2009.

S. Nakashima, K. Sugioka, and K. Midorikawa: "Fabrication of micro-and nano-craters on the surface of GaN substrates by using wet-chemicals assisted femtosecond laser ablation", J. Laser Micro/Nanoengin. 4, 75-78, 2009.

Y. Nabekawa and K. Midorikawa: "Intense Attosecond Pulse Trains", Chemistry & Chemical Industry, vol.62, no.7, pp.800-803, 2009.(in Japanese)

K. Isobe, A. Suda , M. Tanaka, F. Kannari, H. Kawano, H. Mizuno, A. Miyawaki, and K. Midorikawa: "Multifarious control of two-photon excitation of multiple fluorophores achieved by phase modulation of ultra-broadband laser pulses", Opt. Exp., vol.17, no.16, pp.13727-13746, 2009.

K. Isobe Keisuke, A. Suda, M. Tanaka, H. Hashimoto, F. Kannari, H. Kawano, H. Mizuno, A. Miyawaki, and K. Midorikawa: "Single-pulse coherent anti-Stokes Raman scattering microscopy employing an octave spanning pulse", Opt. Exp., vol.17, no.14, pp.11259-11266, 2009.

Y. Nabekawa, T. Shimizu, Y. Furukawa, E. J. Takahashi, and K. Midorikawa: "Interferometry of Attosecond Pulse Trains in the Extreme UltravioletWavelength Region", Phys. Rev. Lett., vol.102, no.21, pp.213904/1-4, 2009.

T. Kanai, E. J. Takahashi, Y. Nabekawa, and K. Midorikawa: "Heterodyne Interferometry Using High-Order Harmonic Generation in Mixed Gases", Progress in Ultrafast Intense Laser Science, vol.5, 2009.

Z. Zhou, J. Xu, Y. Liao, Y. Cheng, Z. Xu, K. Sugioka, and K. Midorikawa: "Fabrication of an integrated Raman sensor by selective surface metallization using a femtosecond laser oscillator", Optics Communications, vol.282, pp.1370-1373, 2009.

K. Isobe, A. Suda, H. Kawano, H. Mizuno, A. Miyawaki, H. Hashimoto, F. Kannari, and K. Midorikawa: "Nonlinear optical microscopy employing spectral phase modulation", DENKI GAKKAI KENKYUKAI SIRYOU, OQD-09-5, pp.25-28, 2009.(in Japanese)


2008

E. J. Takahashi, T. Kanai, K. L. Ishikawa, Y. Nabekawa, and K. Midorikawa: "Coherent Water Window X Ray by Phase-Matched High-Order Harmonic Generation in Neutral Media", Phys. Rev. Lett. vol.101, pp.253901/1-4, 2008.

S. Bohman, A. Suda, M. Kaku, M. Nurhuda, T. Kanai , S. Yamaguchi, and K. Midorikawa: "Generation of 5 fs, 0.5 TW pulses focusable to relativistic intensities at 1 kHz", Opt. Exp., vol.16, no.14, pp.16684-16689, 2008.

T. Kanai, S. Bohman, A. Suda, S. Yamaguchi, and K. Midorikawa: "Development of a pointing and power stabilization system for intense few-cycle lasers", Rev. Laser Eng. Supple. Vol., pp.1109-1112, 2008.

K. Isobe, A. Suda, M. Tanaka, F. Kannari, H. Kawano, H. Mizuno, A. Miyawaki, and K. Midorikawa: "Fourier-transform spectroscopic technique for multi-spectral nonlinear microscopy using a 5-fs broadband light source", Rev. Laser Eng. Suppl. Vol., pp.1335-1338, 2008.

Jianfang Chen, A. Suda, E.J. Takahashi, M. Nurhuda, and K. Midorikawa: "Compression of intense ultrashort laser pulses in a gas-filled planar waveguide", Opt. Lett., vol.33, no.24, pp.2992-2994, 2008.

Y. Hanada, K. Sugioka, and K. Midorikawa: "Selective metallization of photostructurable glass by femtosecond laser direct writing for biochip application", Appl. Phys. A, vol.90, no.4, pp.603-607, 2008.

T. Okino, K. Yamanouchi, T. Shimizu, R. Ma, Y. Nabekawa, and K. Midorikawa: "Attosecond nonlinear Fourier transformation spectroscopy of CO2 in extreme ultraviolet wavelength region", J. Chem .Phys. 129, 161103/1-4, 2008.

Takuya Kanai, A. Suda, S. Bohman, M. Kaku, S. Yamaguchi, and K. Midorikawa: "Pointing stabilization of a high-repetition-rate high-power femtosecond laser for intense few-cycle pulse generation", Appl. Phys. Lett., vol.92, no.6, pp.061106/1-3, 2008.

Y. Hanada, K. Sugioka, H. Kawano, I. Ishikawa, A. Miyawaki, and K. Midorikawa: "Nano-aquarium for dynamic observation of living cells fabricated by femtosecond laser direct writing of photostructurable glass", Biomedical Microdevices, vol.10, pp.403-410, 2008.

A. Hishikawa, A. Matsuda, E. J. Takahashi, and M. Fushitani: "Acetylene-vinylidene isomerization in ultrashort intense laser fields studied by triple-ion coincidence momentum imaging", J. Chem. Phys., vol.128, p.084302, 2008.

Z. Zhou, J. Xu, Y. Cheng, Z. Xu, K. Sugioka, and K. Midorikawa: "Surface-enhanced Raman scattering substrate fabricated by femtosecond laser direct writing", Jpn. J. Appl. Phys., vol.47, no.1, pp. 189-192, 2008.

Y. Nabekawa, and K. Midorikawa: "Interferometric autocorrelation of an attosecond ulse train calculated using feasible formulae", New J. Phys.(Web), vol.10, no.2, p.025034/1-25, 2008.

T. Kanai, E. J. Takahashi, Y. Nabekawa, and K. Midorikawa: "Observing attosecond dynamics of nuclear wavepackets in molecules by using high harmonic generation in mixed gases", New J. Phys.(Web), vol.10, no.2, p.025036/1-8, 2008.

M. Nurhuda, A. Suda, and K. Midorikawa: "Generalization of the Kerr effect for high intensity, ultrashort laser pulses", New J. Phys. (Web), vol.10, 053006/1-10, 2008.

S. Bohman, A. Suda, M. Kaku, M. Nurhuda, T. Kanai, S. Yamaguchi, and K. Midorikawa: "Generation of 5 fs, 0.5 TW pulses focusable to relativistic intensities at 1 kHz ", Opt. Exp., vol.16, no.14, pp.10684-10689, 2008.

S. Minemoto, T. Kanai, and H. Sakai: "Alignment dependence of the structural deformation of CO2 molecules in an intense femtosecond laser field", Phys. Rev. A, vol.77, no.4, 041401(R), 2008.

T. Kanai, E. J. Takahashi, Y. Nabekawa, and K. Midorikawa: "Observing molecular structures by using high-order harmonic generation in mixed gases", Phys. Rev. A, vol.77, no.4, 041402(R), 2008.

K. Isobe, A. Suda, M. Tanaka, F. Kannari, H. Kawano, H. Mizuno, A. Miyawaki, and K. Midorikawa: "Fourier-transform spectroscopy combined with a 5-fs broadband pulse for multispectral nonlinear microscopy ", Phys. Rev. A, vol.77, no.6, pp.063832/1-13, 2008.

K. Midorikawa and Y. Nabekawa: "Nonlinear multiphoton process in the xuv region and its application to autocorrelation measurement", Progress in Ultrafast Intense Laser Science III, Springer Series in Chemical Physics 89, pp.207-218, 2008.

E. J. Takahashi, T. Kanai, and K. Midorikawa: "High-order harmonic generation by using mixed gases target : Measurement and control of ultrafast attosecond dynamics", Rev. Laser Eng., vol.36, no.1, pp.5-11 2008(in Japanese).

Y. Matsuo, M. Nishimura, T. Kobayashi, T. Kato, Y. Oho, T. Sano, J. Kawai, and Y. Hayashizaki: "“Substrate Dependence of Ion Motion in Femtosecond Laser Ablation Cloud Observed by Planar Laser-Induced Fluorescence", Appl. Phys. A, vol.92, pp.993-997, 2008.

T. Kobayashi, T. Kato, Y. Matsuo, M. Nishimura, Y. Hayashizaki, and J. Kawai: "“Temporal pulsewidth and the wavelength dependences of the product ions obtained by laser ablation of solid C60", Appl. Phys. A, vol.92, pp.777-780, 2008.

M. Nishimura, Y. Matsuo, T. Kobayashi, T. Kato, Y. Hayashizaki, and J. Kawai: "“Comparison of Plume Expansion in Femtosecond Laser Ablation on Oxidized and non-Oxidized Sm Surface", Appl. Phys. A, vol.92, pp.1047-1050, 2008.

T. Kobayashi, T. Kato, Y. Matsuo, M. Nishimura, Y. Hayashizaki , and J. Kawai: "“Observation of the matrix effect due to the electron transfer in laser ablation plasma", Appl. Phys. A, vol.92, pp.817-819, 2008.

T. Furukawa, Y. Matsuo, A. Hatakeyama, T. Ito, K. Fujikake, T. Kobayashi, and T. Shimoda: "“Hyperfine structure of $^{85,87}$Rb and $^{133}$Cs atoms in superfluid helium", Proceedings of International Nuclear Physics Conference (INPC2007), pp.624-626, 2008.

T. Kato, M. Nishimura, T. Kobayashi, Y. Oho, T. Sano, Y. Hayashizaki , Y. Matsuo, and J. Kawai: "“Ion extraction from the surface ablated materials in electric fields using an intense femtosecond laser pulse", Appl. Phys. A, vol.92, pp. 809-812, 2008.


2007

J. Tada, T. Kono, A. Suda A., H. Mizuno, A. Miyawaki, K. Midorikawa, and F. Kannari, "Adaptively controlled supercontinuum pulse from a microstructure fiber for two-photon excited fluorescence microscopy", Appl. Opt., 46(15), pp. 3023-3030, 2007.

H. Mashiko, A. Suda, and K. Midorikawa, "Second-order autocorrelation functions for all-reflective interferometric autocorrelator", Appl. Phys. B, 87(2), pp. 221-226, 2007.

A. Matsuda, E.J. Takahashi, and A. Hishikawa, "Dalitz plot analysis of Coulomb exploding O3 in ultrashort intense laser fields", J. Chem. Phys., vol. 127, p. 114318, 2007.

K. Sugioka, B. Gu, and A. Holmes, "The state of the art and future perspective of laser-direct writing for industrial and commercial applications", MRS Bulletin vol. 32, pp. 47-54, 2007.

R. R. Alfano and A. Suda, "The Ultimate White Light", Nikkei Science, no.3, pp. 72-79, 2007(in Japanese).

Y. Oishi, A. Suda, F. Kannari, and K. Midorikawa, "Intense femtosecond pulse shaping using a fused-silica spatial light modulator", Opt. Commun., 270, pp. 305-309, 2007.

Y. Nagata, K. Furusawa, Y. Nabekawa, and K. Midorikawa, "Single-shot spatial-coherence measurement of 13 nm high-order harmonic beam by a Young's double-slit measurement", Opt. Lett. vol. 32, no.7, pp. 722-724, 2007.

Y. Nabekawa, and K. Midorikawa, "Measurement of an attosecond pulse train", Oyo Buturi, vol. 76, No.2, pp. 133-140, 2007(in Japanese).

K. L. Ishikawa, E. J. Takahashi, and K. Midorikawa, "Single-attosecond pulse generation using a seed harmonic pulse train", Phys. Rev. A vol. 75, pp. 021801/1-4, 2007.

Y. Nomura, T. Kanai, S. Minemoto, and H. Sakai, "Efficient generation of high-order sum and difference frequencies in the xuv region by combining a weak longer-wavelength field", Phys. Rev. A, 75(4), p. 041801(R), 2007.

T. Kanai, S. Minemoto, and H. Sakai, "Ellipticity Dependence of High Harmonic Generation from Aligned Molecules", Phys. Rev. Lett. vol. 98(5), pp.053002/1-4, 2007.

T. Kanai, E. J. Takahashi, Y. Nabekawa, and K. Midorikawa, "Destructive Interference during High Harmonic Generation in Mixed Gases", Phys. Rev. Lett. vol. 98, p.153904, 2007.

T. Kanai, S. Minemoto, and H. Sakai, "Ellipticity dependence of high-order harmonic generation from aligned molecules", Phys. Rev. Lett., 98(6), p. 69903, 2007.

E. J. Takahashi, T. Kanai, K. L. Ishikawa, Y. Nabekawa, and K. Midorikawa, "Dramatic Enhancement of High-Order Harmonic Generation", Phys. Rev. Lett., vol. 99, p. 53904, 2007.

T. Shimizu, T. Okino, K. Yamanouchi, Y. Nabekawa, K. Midorikawa, "Direct Temporal Characterization of Attosecond Pulse Trains", Proc. SPIE-Int. Soc. Opt. Eng., vol. 6460, pp.64600Q/1-8, 2007.

A. Suda, H. Mashiko, and K. Midorikawa, "Focusing intense high-order harmonics to a micron spot size", Progress in Ultrafast Intense Laser Science: Volume II, Springer, pp.183-198, 2007.

Y. Nabekawa, "High-intensity ultrashort pulse laser system of Ti: Sapphire laser and its optical elements", The Review of Laser Engineering, vol. 35, No. 3, pp. 136-141, 2007(in Japanese).

K. Midorikawa, Springer Series in Optical Sciences 132: Ultrafast Optics V, 2007.

T. Kanai, S. Minemoto, and H. Sakai, "Ellipticity dependence of high-order harmonics generated in aligned molecules", Ultrafast Optics V, pp.367-370, 2007.

M. Kaku, Y. Oishi, A. Suda, F. Kannari, and K. Midorikawa, "Generation of extreme ultraviolet continuum radiation driven by sub-10-fs two-color field", Ultrafast Optics V, pp. 413-419, 2007.

K. Midorikawa, "X-ray and EUV sources", Springer Handbook of Lasers and Optics, Springer, pp.819-827, 2007.

K. Midorikawa, T. Shimizu, and Y. Nabekawa, "Nonlinear interaction of intense attosecond xuv pulses with atoms andd molecules", Springer Proceesings in Physics 115: X-Ray Lasers 2006, Springer, pp.367-374, 2007.

T. Kanai, S. Minemoto, and H. Sakai, "Basis for Ultrafast Imaging of Molecular Orbitals with High-Order Harmonic Generation", Ultrafast Phenomena XV, vol. 15, pp. 27-29, 2007.

T. Kato, T. Kobayashi, Y. Matsuo, M. Kurata-Nishimura, R. Oyama, Y. Matsumura, H. Yamamoto, J. Kawai, and Y. Hayashizaki, "Comparison between femtosecond and nanosecond Laser Ablation of solution samples applied on a substrate", J. Phys.: Con. Ser., vol. 59, pp.372-375, 2007.

T. Kobayashi, T. Kato, M. Kurata-Nishimura, Y. Matsuo, J. Kawai, T. Motobayashi, and Y. Hayashizaki, "“Kinetic energy of ions produced with first-, second-, and multi-shot Femtosecond Laser Ablation on a solid surface", J. Phys.: Con. Ser., vol.59, pp.364-367, 2007.

Y. Matsuo, T. Kobayashi, M. Kurata-Nishimura, T. Kato, T. Motobayashi, J. Kawai, and Y. Hayashizaki, "“LIF observation of neutral atoms and ions produced by Femtosecond Laser Ablation of Sm on a substrate", J. Phys.: Con. Ser., vol.59, pp.555-558, 2007.

M. Kurata-Nishimura, T. Kato, Y. Matsuo, T. Kobayashi, R. Oyama, Y. Oho, J. Kawai, and Y. Hayashizaki, "“Dependence of Femtosecond Laser Ablation for organic molecules on chosen substrate", J. Phys.: Con. Ser., vol.59, pp.360-363, 2007.

T. Kobayashi, T. Kato, Y. Matsuo, M. Kurata-Nishimura, Y. Hayashizaki, and J. Kawai, "“Wavelength-dependent fragmentation and clustering observed after Femtosecond Laser Ablation of solid C60", J. Chem. Phys., vol.127, no. 11, pp.111101/01-03, 2007.


2006

C. Wochnowski1, Y. Hanada, Y. Cheng, S. Metev, F. Vollersten, K. Sugioka, and K. Midorikawa, "Femtosecond-laser-assisted wet chemical etching of polymer materials,”J. Appl. Polymer Sci. vol.100, pp. 1229-1238 , 2006.

Y. Cheng, H.-L. Tsai, K. Sugioka, and K. Midorikawa, "Fabrication of 3D microoptical lenses in photosensitive glass using femtosecond laser micromachining,” Appl. Phys. A 85, pp. 11-14, 2006.

C. Wochnowski, K. Meteva, S. Metev, G. Sepold, F. Vollertsen, Y. Cheng, Y. Hanada, K. Sugioka, K. Midorikawa, "Fs-laser-induced Fabrication of Polymeric Optical and Fluidic Microstructures,” J. Laser Micro/Nanoengin. vol.1, pp. 195-200, 2006.

Y. Oishi, M. Kaku, A. Suda, F. Kannari, and K. Midorikawa, "Generation of extreme ultraviolet continuum radiation driven by a sub-10-fs two-color laser field,” Opt. Exp, vol. 14, pp. 7230-7237, 2006.

M. Nurhuda, A. Suda, S. Bohman, S. Yamaguchi, and K. Midorikawa, "Optical pulse compression of ultrashort laser pulses in argon-filled planar waveguide," Phys. Rev. Lett., vol. 97, pp. 153902/1-4, 2006.

I. G. Koprinkov, A. Suda, P. Wang, and K. Midorikawa, "Generation of a completely dense femtosecond optical supercontinuum," J. Phys. B vol. 39, pp. L203-L209, 2006.

Y. Nagata, Y. Nabekawa, and K. Midorikawa, "Development of high-throughput, high-damage-threshold beam separator for 13 nm high-order harmonics," Opt. Lett. vol.31, pp. 1316-1318, 2006.

K. Furusawa, T. Okino, T. Shimizu, H. Hasegawa, Y. Nabekawa, K. Yamanouchi, and K. Midorikawa, "Photoelectron spectroscopy of two-photon ionization of rare-gas atoms by multiple high order harmonics," Appl. Phys. B vol. 83, pp. 203-211, 2006.

Y. Nabekawa, T. Shimizu, T. Okino, K. Furusawa, H. Hasegawa, K. Yamanouchi, and K. Midorikawa, "Conclusive evidence of an attosecond pulse train observed with the mode-resolved autocorrelation technique," Phys. Rev. Lett. vol. 96, 083901/1-4, 2006.

K. Hoshina, A. Hishikawa, K. Kato, T. Sako, K. Yamanouchi, E. J. Takahashi, Y. Nabekawa, and K. Midorikawa, "Dissociative ATI of H2 and D2 in intense soft x-ray laser fields," J. Phys. B vol. 39, pp. 813-829, 2006.

K. Sugioka, Y. Cheng, K. Midorikawa, F. Takase, and H. Takai, "Femtosecond laser microprocessing with three-dimensionally isotropic spatial resolution using crossed-beam irradiation," Opt. Lett. vol. 31, pp. 208-210, 2006.

K. Obata, K. Sugioka, K. Midorikawa, T. Inamura, and H. Takai, "Deep etching of epitaxial gallium nitride film by multiwavelength excitation process using F2 and KrF excimer lasers," Appl. Phys. A vol. 82, pp. 479-483, 2006.

Y. Hanada, K. Sugioka, I. Miyamoto, and K. Midorikawa,

"Transient electron excitation in transparent materials for high efficiency ablation by laser-induced plasma-assisted ablation (LIPAA)," J. Appl. Phys. vol. 99, 043301, 2006.

K. Obata, K. Sugioka, N. Shimazawa, and K. Midorikawa, "Fabrication of microchip based on UV transparent polymer for DNA electrophoresis by F2 laser ablation,”Appl. Phys. A vol.84, 251-255, 2006.

T. Okino, K. Yamanouchi, T. Shimizu, K. Furusawa, H. Hasegawa, Y. Nabekawa, and K. Midorikawa, "Attosecond molecular Coulomb explosion", Chem. Phys. Lett. vol. 432, pp. 68-73, 2006.

K. Obata, K. Sugioka, and K. Midorikawa, "F2 laser ablation of UV transparent polymer material", J. Laser Micro/Nanoengineering, 1(1), 28-32, 2006.

M. Nurhuda, A. Suda, and K. Midorikawa, "Plasma-induced spectral broadening of high energy ultrashort laser pulses in a helium-filled multiple-pass cell", J. Opt. Soc. Am. B, 23(9), 1946-1953, 2006.

Y. Nabekawa, T. Shimizu, T. Okino, K. Furusawa, H. Hasegawa, K. Yamanouchi, and K. Midorikawa, "Interferometric Autocorrelation of an Attosecond Pulse Train in the Single-Cycle Regime", Phys. Rev. Lett., 97, 153904/1-4, 2006.

Y. Nabekawa, H. Hasegawa, E.J. Takahashi, and K. Midorikawa, "Nabekawa et al. reply", Phys. Rev. Lett., 97, 169302, 2006.

J. Chen, H. Mizuno, H. Kawano, A. Miyawaki, and K. Midorikawa, "Two-photon pumping of random lasers by picosecond and nanosecond lasers", Appl. Phys. B, 85, 45-48, 2006.

I.G. Koprinkov, A. Suda, M. Nurhuda, P. Wang, and K. Midorikawa, "Observation of two different types of optical supercontinuum: Structured and structureless", Phys. Rev. A, 74, 053819/1-11, 2006.

Y. Oishi, A. Suda,F. Kannari, and K. Midorikawa, "Sub-10 fs, multi-mJ laser system", Rev. Sci. Instrum., 76(9), 093114/1-6, 2006.

A. Hishikawa, E.J. Takahashi, and A. Matsuda, "Electronic and Nuclear Responses of Fixed-in-Space H2S to Ultrashort Intense Laser Fields", Phys. Rev. Lett., 97, 243002/1-4, 2006.

H. Mashiko, A. Suda, and K. Midorikawa, "Focusing multiple high-order harmonics in the extreme-ultraviolet and soft-x-ray regions by a platinum-coated ellipsoidal mirror", Appl. Opt., vol.45, 573-577, 2006.

S. Hayashi, K. Maki, C. Otani, and K. Kawase, "Terahertz wave parametric soueces", Proc. SPIE-Int. Soc. Opt. Eng., vol.5975, 59750N/1-10, 2006.

C. Wochnowski, Y. Cheng, Y. Hanada, K. Meteva, S. Metev, K. Sugioka Koji, G. Sepold, F. Vollersten, and K. Midorikawa, "Fs-laser-induced fabrication of polymeric optical and fluidic microstructures", Proc. 4th International Congress on Laser Advanced Materials Processing (LAMP 2006), 06-37, 2006.

K. Sugioka Koji, Y. Cheng, and K. Midorikawa, "Three-dimensional micro and nanochips fabricated by femtosecond laser for biomedical applications", Photon-based Nanoscience and Nanobiotechnology, Springer, 307-332, 2006.

K. Sugioka, and K. Midorikawa, "Crossed beam irradiation for femtosecond laser micro and nanomachining with three-dimensionally isotropic spatial resolution", Proc. SPIE-Int. Soc. Opt. Eng., vol.6108, 61080S/1-6, 2006.

Y. Hanada, K. Sugioka, and K. Midorikawa, "Laser-induced plasma-assisted ablation (LIPAA): fundamental and industrial applications", Proc. SPIE-Int. Soc. Opt. Eng., vol.6261, 626111/1-15, 2006.


2005

T. Hongo, K. Sugioka, H. Niino, Y. Cheng, M. Masuda, I. Miyamoto, H.Takai, and K. Midorikawa, "Investigation of photoreaction mechanism of photosensitive glass by femtosecond laser," J. Appl. Phys. vol. 97, 063517/1-4. 2005.

K. Sugioka, T. Hongo, H. Takai, and K. Midorikawa, "Selective metallization of internal walls of hollow structures inside glass usingfemtosecond laser," Appl. Phys. Lett. vol. 86, 171910/1-3, 2005.

Y. Hanada, K. Sugioka, F. Takase, H. Takai, I. Miyamoto, and K. Midorikawa, "Double-pulse irradiation in laser-induced plasma-assisted ablation (LIPAA) processing for mechanism study," Appl. Surf. Sci. vol. 248, pp. 276-280, 2005.

Y. Cheng, K. Sugioka, and K. Midorikawa, "Freestanding optical fibers fabricated in a glass chip using femtosecond laser micromachining for lab-on-a-chip application," Opt. Exp. vol. 13, pp. 7225-7232, 2005.

K. Obata, K. Sugioka, and K. Midorikawa,

"F2 laser ablation of UV transparent polymer material," J. Laser Micro Nano Engin. vol. 1, pp. 28-32, 2005.

C. Wochnowski1, Y. Cheng, K. Meteva, K. Sugioka, K. Midorikawa, and S. Metev,

"Femtosecond-laser induced formation of grating structures in planar polymer substrates," J. Opt A: Pure Opt. Appl. vol. 7, pp. 493-501, 2005.

S. Shimizu, Y. Nabekawa, M. Obara, and K. Midorikawa, "Spectral phase transfer for indirect phase control of sub-20-fs deep UV pulses," Opt. Exp, vol.13, pp. 6345-6353, 2005.

H. Hasegawa, E. J. Takahashi, Y. Nabekawa, and K. Midorikawa, "Nonlinear multiphoton process of He at 42 eV by high-order harmonics,"Laser Phys. vol.15, no.6, pp. 812-820, 2005.

M. Nurhuda, A. Suda, K. Midorikawa, and H. Budiono, "Control of self-phase-modulation and plasma-induced blue-shifting of high energy, ultrashort laser pulses in gas-filled hollow fiber using conjugate pressure gradient method," J. Opt. Soc. Am. B, vol. 22, pp. 1757-1762, 2005.

Y. Oishi, A. Suda, F. Kannari, and K. Midorikawa, "Sub-10 fs, multi-mJ Laser system," Rev. Sci. Instrum, vol. 76, 093114/1-6,2005.

H. Hasegawa, E. J. Takahashi, Y. Nabekawa, K. L. Ishikawa, and K. Midorikawa, "Multiphoton ionization of He by using intense high-order harmonics in the soft-x-ray region," Phy. Rev. A, vol.71, pp. 023407/1-5, 2005.

Y. Nabekawa, H. Hasegawa, E. J. Takahashi, and K. Midorikawa, "Production of doubly charged helium ions by two-photon absorption of an intense sub-10-fs soft X-ray pulse at 42 eV photon energy," Phy. Rev. Lett., vol.94, pp. 043001/1-4, 2005.

A. Suda, M. Hatayama, K. Nagasaka, and K. Midorikawa, "Generation of sub-10-fs, 5-mJ-optical pulses using a hollow fiber with a pressure gradient," Appl. Phys. Lett., vol.86, pp. 111116/1-3, 2005.

K. Sugioka, Y. Cheng, and K. Midorikawa, "Ultrafast laser processing for lab-on-a-chip device manufacture," Materials Research Society Symposium Proceedings Vol. 850, MRS, MM1.3.1--MM1.3.12, 2005.

Y. Hanada, K. Sugioka, F. Takase, H. Takai, I. Miamoto, and K. Midorikawa, "Selective metallization of polyimide by laser-induced plasma-assisted ablation (LIPAA)," Appl. Phys. A, vol.80, pp. 111-115, 2005.

M. Nurhuda, A. Suda, and K. Midorikawa, "Control of the spectral broadening of tens-milli-joule laser pulses in argon-filled hollow fiber using conjugate pressure gradient," Ultrafast Phenomena 14: Proceedings of the 14th International Conference, pp. 46-48, 2005.

H. Mashiko, A. Suda, and K. Midorikawa, "Generation of strong soft x-ray field based on high-order harmonics," Ultrafast Phenomena 14: Proceedings of the 14th International Conference, pp. 181-183, 2005.

M. Nurhuda, A. Suda, and K. Midorikawa, "Spectral broadening of 50 milli joule laser pulses in neon-filled Herriot multiple-pass cell (MPC)," Ultrafast Phenomena 14: Proceedings of the 14th International Conference, pp. 58-60, 2005.

K. Sugioka, Y. Cheng, and K. Midorikawa, "Three-dimensional micromachining of glass using femtosecond laser for lab-on-a-chip device manufacture," Appl. Phys. A, vol. 81, pp. 1-10, 2005.

Y. Cheng, K. Sugioka, and K. Midorikawa, "Microfabrication of 3D hollow structures embedded in glass by femtosecond laser for Lab-on-a-chip applications," Appl. Surf. Sci., vol. 248, pp. 172-176, 2005.

Y. Hanada, K. Sugioka, K. Obata, I. Miamoto, and K. Midorikawa, "The Mechanism Study of Laser-Induced Plasma-Assisted Ablation (LIPAA)," Proceedings of 6th International Symposium on Laser Precision Microfabrication (LPM 2005), pp. 1-5, 2005.

Y. Cheng, K. Sugioka, and K. Midorikawa, "Freestanding optical fibers in a glass chip fabricated by 3D femtosecond laser microprocessing for biosensor application," Proceedings of 6th International Symposium on Laser Precision Microfabrication (LPM 2005), pp. 94-98, 2005.

K. Sugioka, Y. Cheng, F. Takase, K. Midorikawa, and H. Takai, "Advanced irradiation methoda achieving three-dimensionally symmetric resolution for femtosecond laser micromachining," Proceedings of 6th International Symposium on Laser Precision Microfabrication (LPM 2005), pp. 268-271, 2005.

K. Sugioka, Y. Cheng, F. Takase, K. Midorikawa, and H. Takai, "Advanced irradiation methoda achieving three-dimensionally symmetric resolution for femtosecond laser micromachining," Proceedings of 6th International Symposium on Laser Precision Microfabrication (LPM 2005), pp. 268-271, 2005.

K. Sugioka, Y. Cheng, and K. Midorikawa, "Integration of 3D microoptics and microfluidics in a glass chip using a femtosecond laser for photonic applications," Proc. SPIE-Int. Soc. Opt. Eng., vol. 5627, pp. 247-256, 2005.

Y. Cheng, K. Sugioka, and K. Midorikawa, "3D Microfluidic Lasers Embedded in Glass by Femtosecond Laser Direct Writing," Proc. SPIE-Int. Soc. Opt. Eng., vol. 5713, pp. 169-179, 2005.

Y. Hanada, K. Sugioka, I. Miyamoto, K. Midorikawa, "LIPAA technique and its possible impact on micro-electronics," Proc. SPIE-Int. Soc. Opt. Eng., vol. 5713, pp. 445-455, 2005.

K. Midorikawa, J. Chen, H. Kawano, Y. Nabekawa, A. Suda, H. Mizuno, and A. Miyawaki, "Coherent control of multiphoton excitation process for biological fluorescence imaging," Proc. SPIE-Int. Soc. Opt. Eng., vol. 5714, pp. 99-107, 2005.

Y. Nagata, K. Furusawa, Y. Nabekawa, and K. Midorikawa, "Single-shot measurement of the spatial coherence of 13-nm high-order harmonics," Proc. SPIE-Int. Soc. Opt. Eng., vol. 5918, pp. 59180L/1-8, 2005.

Y. Ohishi, A. Suda, F. Kannari, and K. Midorikawa, "Sub-10 fs multi-mJ Ti:sapphire laser system with a pressure-gradient hollow fibers," Ultrafast Phenomena 14: Proc. 14th Int. Confere., pp. 28-30, 2005.


2004

Jianfang Chen and K. Midorikawa, "Two-color two-photon 4Pi fluorescence microscopy," Opt. Lett., vol.29, pp. 1354-6, 2004.

Jianfang Chen, H. Kawano, Y. Nabekawa, H. Mizuno, A. Miyawaki, T. Tanabe, F. Kannari, and K. Midorikawa, "Selective excitation between two-photon and three-photon fluorescence with engineered cost functions," Opt. Exp, vol.12, no.15, pp. 3408-14, 2004.

K. Takatoi, A. Suda, Y. Oishi, Wang Pengqian, K. Nagasaka, and K. Midorikawa, "A single-shot transient-grating autocorrelator for the measurement of femtosecond laser pulses in the ultraviolet," Jap. J. Appl. Phys. Part 1-Regular Papers Short Notes & Review Papers,vol.43, pp. 993-6, 2004.

Y. Ueda, H. Kumagai, T. Meguro, K. Midorikawa, and M. Obara, "Optogalvanic spectroscopy of silicon atoms," Nuclear Instruments & Methods in Phys. Research Section B-Beam Interactions with Materials &Atoms, vol.215, pp. 419-22, 2004.

J. Maehara, Y. Yamada, H. Kumagai, K. Midorikawa, and T. Yabe, "Comparison of simulations of and experiments on femtosecond laser ablation of nickel in gaseous and water environments," Jap. J. Appl. Phys. Part 1-Regular Papers Short Notes & Review Papers, vol.43, pp. 172-175, 2004.

E. J. Takahashi, Y. Nabekawa, and K. Midorikawa, "Low-divergence coherent soft x-ray source at 13 nm by high-order harmonics," Appl. Phys. Lett., vol.84, pp. 4-6, 2004.

M. Nurhuda, H. Budiono, A. Suda, and K. Midorikawa, "Energy transmittance and spatial phase improvement of intense ultrashort laser pulses in gas-filled hollow fiber using pressure gradient method," World Scientific. J. Nonlinear Optical Phys. & Materials, vol.13, pp. 291-299, 2004.

M. Nurhuda, A. Suda, and K. Midorikawa, "Saturation of nonlinear susceptibility," World Scientific. J. of Nonlinear Optical Phys. & Materials, vol.13, pp. 301-313, 2004.

H. Mashiko, A. Suda, and K. Midorikawa, "Focusing coherent soft-X-ray radiation to a micrometer spot size with an intensity of 1014 W/cm2," Opt. Lett., vol.29, pp. 1927-1929, 2004.

Y. Cheng, K. Sugioka, and K. Midorikawa, "Microfluidic laser embedded in glass by three-dimensional femtosecond laser microprocessing," Opt. Lett., vol.29, pp. 2007-2009, 2004.

K. Sugioka, "3Three-dimensional laser microfabrication Proceedings of SPIE-The International Society for Optical Engineering," Proc. SPIE-Int. Soc. Opt. Eng., vol.5662, pp.1-9, 2004. USA.

Y. Cheng, K. Sugioka, and K. Midorikawa, "3D integration of microoptics and microfluidics in glass using femtosecond laser direct writing," SPIE-Int. Soc. Opt. Eng. Proceedings of SPIE-the International Society for Optical Engineering, vol.5662, no.1, 2004, pp. 209-214. USA.

Y. Hanada, K. Sugioka, Y. Gomi, H. Yamaoka, O. Otsuki, I. Miyamoto, and K. Midorikawa, "Development of practical system for laser-induced plasma-assisted ablation (LIPAA) for micromachining of glass materials," Springer-Verlag. Appl. Phys. A (Materials Science Processing), vol.79, pp. 1001-1003, 2004.

K. Sugioka, Y. Cheng, M. Masuda, K. Midorikawa, K. Shihoyama ,"Fabrication of microreactors in photostructurable glass by 3D femtosecond laser direct write," SPIE-Int. Soc. Opt. Eng. Proceedings of SPIE - the International Society for Optical Engineering, vol.5339, pp. 205-213, 2004. USA.

Y. Hanada, K. Sugioka, K. Obata, H. Takase, H. Takai, I. Miyamoto, and K. Midorikawa, "Micromachining of transparent materials by laser-induced plasma-assisted ablation (LIPAA)," SPIE-Int. Soc. Opt. Eng. Proceedings of SPIE - the International Society for Optical Engineering, vol.5662, pp. 526-531, 2004. USA.

E. J. Takahashi, H. Hasegawa, Y. Nabekawa, and K. Midorikawa, "High-throughput, high-damage-threshold broadband beam splitter for high-order harmonics in the extreme-ultraviolet region," Opt. Lett., vol.29, pp. 507-509, 2004. USA.

Y. Nabekawa, and K. Midorikawa, "Group-delay-dispersion-matched sum-frequency mixing for the indirect phase control of deep ultraviolet pulses in the sub-20-fs regime," Appl. Phys. B, vol.78, pp. 569-581, 2004. USA.

Y. Nabekawa, K. Midorikawa, F. Kraus, and others, "Broadband sum-frequency mixing for indirect phase control of UV pulses with a sub-20-fs TW-class Ti:sapphire laser system," Ultrafast Optics IV: Selected Contributions to the 4th International Conference on Ultrafast Optics, Vienna, Austria (Springer Series in Optical Sciences), pp. 395-400, 2004. USA.

K. Sugioka, Y. Cheng, and K. Midorikawa, "3D micromachining of photosensitive glass by femtosecond laser for microreactor manufacture," J. Photopolym. Sci. Technol., vol.17, pp.397-408, 2004. USA.


K. Sugioka, Y. Cheng, and K. Midorikawa, "3D microstructuring and selective metallization of photosensitive glass by photochemical reaction using femtosecond laser," Proc. 23rd Int. Congress on Applications of Lasers and Electro-Optics 2004 (ICALEO2004), p.M302, 2004.


2003

E. J. Takahashi, Y. Nabekawa, M. Nurhuda, and K. Midorikawa, "Generation of high-energy high-order harmonics by use of a long interaction medium," J. Opt. Soc. Am. B-Optical Phys, vol.20, pp. 158-165, 2003.

Y. Nabekawa and K. Midorikawa, "Broadband sum frequency mixing using noncollinear angularly dispersed geometry for indirect phase control of sub-20-femtosecond UV pulses," Opt. Exp, vol.11, no.4, pp.324-338. 2003.

M. Hatayama, A. Suda, M. Nurhuda, K. Nagasaka, and K. Midorikawa, "Spatiotemporal dynamics of high-intensity femtosecond laser pulses propagating in argon," J. Opt. Soc. Am. B-Optical Phys, vol.20, pp. 603-608, 2003.

Y. Cheng a, K. Sugioka, K. Midorikawa, M. Masuda, K. Toyoda, M. Kawachi, and K. Shihoyama "Control of the cross-sectional shape of a hollow microchannel embedded in photostructurable glass by use of a femtosecond laser," Opt. Lett., vol.28, pp. 55-57, 2003.

M. Masuda, K. Sugioka, Y. Cheng, N. Aoki, M. Kawachi, K. Shihoyama,K. Toyoda, H. Helvajian, and K. Midorikawa, "3D microstructuring inside photosensitive glass by femtosecond laser excitation," Appl. Phys. A (Materials Science Processing), vol.76, pp. 857-860, 2003.

M. Masuda, K. Sugioka, Y. Cheng, N. Aoki, M. Kawachi, K. Shihoyama,K. Toyoda, K. Midorikawa, "3D microfabrication in photosensitive glass by femtosecond laser," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.4830, pp. 576-580. 2003.

Y. Cheng, K. Sugioka, M. Masuda, M. Kawachi, K. Shihoyama, K. Toyoda, and K. Midorikawa, "Advanced irradiation methods of femtosecond laser for embedded microfabrication of transparent materials," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie- the International Society for Optical Engineering, vol.4830, pp. 479-483. 2003.

K. Obata, K. Sugioka, T. Kono, H. Takai, K. Toyoda, and K. Midorikawa, "High-speed and efficient control of refractive index change of fused silica by multiwavelength excitation process using F2 and KrF excimer lasers," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.4830, pp. 373-378, 2003.

H. Kumagai, Y. Asakawa, T. Iwane, K. Midorikawa, and M Obara, "Efficient frequency doubling of 1 W continuous-wave Ti:sapphire laser with a robust high-finesse external cavity," Appl. Opt, vol.42, pp. 1036-1039, 2003.

Y. Asakawa, H. Kumagai, K. Midorikawa, M Obara, "50% frequency doubling efficiency of 1.2-W cw Ti:sapphire laser at 746 nm," Opt. Commu., vol.217, pp. 311-315, 2003.

H. Kumagai, Cho Sung-Hak, K. Ishikawa, K. Midorikawa, M. Fujimoto, Shin-ichiro Aoshima, and Y. Tsuchiya, " Observation of the complex propagation of a femtosecond laser pulse in a dispersive transparent bulk material," J. Opt. Soc. Am. B-Opt. Phys, vol.20, pp. 597-602, 2003.

Cho S-H, H. Kumagai, and K. Midorikawa, "In situ observation of dynamics of plasma self-channeling and bulk modification in silica glasses induced by a high-intensity femtosecond laser," Appl. Phys. A (Materials Science Processing), vol.A76d, pp. 755-761, 2003.

H Kumagai, Y Asakawa, K. Midorikawa, and M. Obara, "Toward nano-process applications with laser-cooled silicon atoms," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.4830, pp. 218-221, 2003.

Cho Sung-Hak, H. Kumagai, and K. Midorikawa, "In situ observation of dynamics of plasma formation and refractive index modification in silica glasses excited by a femtosecond laser," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.4830, pp. 557-566, 2003.

H. Mashiko, A. Suda, and K. Midorikawa, "All-reflective interferometric autocorrelator for the measurement of ultra-short optical pulses," Appl. Phys. B-Lasers & Opt, vol.B76, pp. 525-530, 2003.

K. Sugioka, K Obata, MH Hong, DJ Wu, LL Wong, YF Lu, TC Chong, and K. Midorikawa, "Hybrid laser processing for microfabrication of glass," Appl. Phys. A (Materials Science Processing), vol.77, pp. 251-257, 2003.

V Tosa, E Takahashi, Y. Nabekawa, and K. Midorikawa, "Generation of high-order harmonics in a self-guided beam," Phys. Rev. A, vol.67, pp. 63817/1-4, 2003.

M. Nurhuda, A. Suda, K. Midorikawa, M. Hatayama, and K. Nagasaka, "Propagation dynamics of femtosecond laser pulses in a hollow fiber filled with argon: constant gas pressure versus differential gas pressure," J. Opt. Soc. Am. B-Opt. Phys, vol.20, pp. 2002-2011, 2003.

IG Koprinkov, A. Suda, and K. Midorikawa, "Tunable narrowband quasi-modeless laser," Opt. Commu., vol.225, pp. 371-376, 2003.

Y. Cheng, K. Sugioka, K. Midorikawa, M. Masuda, K. Toyoda, M. Kawachi, and K. Shihoyama, "Three-dimensional micro-optical components embedded in photosensitive glass by a femtosecond laser," Opt. Lett., vol.28, pp. 1144-1146, 2003.

Cho Sung-Hak, H Kumagai, and K. Midorikawa, "Fabrication of multi-core structures in an optical fiber using plasma self-channeling," Opt. Exp, vol.11, no.15, pp. 1780-1786, 2003.

Y. Cheng, K. Sugioka, M. Masuda, K. Shihoyama, K. Toyoda, and K. Midorikawa, "Optical gratings embedded in photosensitive glass by photochemical reaction using a femtosecond laser," Opt. Exp, vol.11, no.15, pp. 1809-1816, 2003.

Y. Nabekawa, and K. Midorikawa, "High-order pulse front tilt caused by high-order angular dispersion," Opt. Exp, vol.11, no.25, pp. 3365-3376, 2003.

K. Sugioka, K Obata, Y. Cheng, and K. Midorikawa, "Advanced laser processing of glass materials," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.5121, pp. 232-242, 2003.

Y. Cheng, K. Sugioka, M. Masuda, K. Midorikawa, M. Kawachi, K. Shihoyama, and K. Toyoda, "3D microstructuring inside photosensitive glass by use of a femtosecond laser for lab-on-chip applications," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.4977, pp. 314-323, 2003.

M. Masuda, K. Sugioka, Y. Cheng, T Hongo, K. Shihoyama, H Takai, I Miyamoto, and K. Midorikawa, "Fabrication of 3-D microreactor structures embedded in photosensitive glass by femtosecond laser," Digest of Papers Microprocesses and Nanotechnology 2003. 2003 International Microprocesses and Nanotechnology Conference. Japan Soc. of Appl. Phys. 2003, pp. 198-199. Tokyo, Japan.

H Kumagai, K. Midorikawa, T Iwane, and M Obara, "Efficient sum-frequency generation of continuous-wave single-frequency coherent light at 252 nm with dual wavelength enhancement," Opt. Lett., vol.28, pp. 1969-1971,2003.

K Obata, K. Sugioka, T Inamura, H Takai, K. Toyoda, and K. Midorikawa, "Dynamics study of multiwavelength excitation process using F2 and KrF excimer lasers," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie -the International Society for Optical Engineering, vol.4977, pp. 10-15, 2003.

E. J. Takahashi, V. Tosa, Y. Nabekawa, and K. Midorikawa, "Experimental and theoretical analyses of a correlation between pump-pulse propagation and harmonic yield in a long-interaction medium," Phys. Rev. A, vol.68, pp. 023808/1-13, 2003.

C. Altucci, R. Bruzzese, C. de Lisio, M. Nisoli, E. Priori , S. Stagira, M. Pascolini, L. Poletto, P. Villoresi, V. Tosa, K. Midorikawa, "Phase-matching analysis of high-order harmonics generated by truncated Bessel beams in the sub-10-fs regime," Phys. Rev. A, vol.68, pp. 033806/1-14, 2003.

I.-W. Park, H. Ju, A. Avilov, E. K. Koh, S.-H. Cho, H. Kumagai, and K. Midorikawa, "An irrecoverable change in the refractive index of plasma self-channeled silica fibers caused by femtosecond optical pulses," Appl. Phys. Lett., vol.83, pp. 656-658, 2003.

H. Kawano, Y. Nabekawa, A. Suda, Y. Ohishi, H. Mizuno, A. Miyawaki, and K. Midorikawa, "Attenuation of photobleaching in two-photon excitation fluorescence from green fluorescent protein with shaped excitation pulses," Biochem. Biophys. Res. Commun., vol.311, pp. 592-596, 2003.

K. Sugioka, K. Obata, K. Midorikawa, M. H. Hong, D. J. Wu, L. L. Wong, Y. Y. Lu, and T. C. Chong, "Advanced materials processing based on interaction of laser beam and a medium," J. Photochem. Photobiol., A, vol.1 58, pp. 171-178, 2003.

M. Hong, K. Sugioka, D. J. Wu, K. J. Chew, Y.F. Lu, K. Midorikawa, and T. Chong, "Laser-induced-plasma assisted ablation and its applications," Proc. SPIE-Int. Soc. Opt. Eng., vol.1 4830, pp. 408-413, 2003.

D. J. Wu, M. H. Hong, R. Ji, K. D. Ye, S. M. Huang, T. C. Chong, T. C. Ma, K. Sugioka, and K. Midorikawa, "TLaser induced diffusion for glass metallization," Proc. SPIE-Int. Soc. Opt. Eng., vol.1 5063, pp. 30-33, 2003.

M. Masuda, K. Sugioka, Y. Cheng, M. Kawachi, K. Shihoyama, K. Toyoda, and K. Midorikawa, "Fabrication of 3D microreactor structures embedded in photosensitive glass by femtosecond laser," Proc. SPIE-Int. Soc. Opt. Eng., vol.1 5063, pp. 98-102, 2003.

Y. Cheng, K. Sugioka, M. Masuda, K. Shihoyama, K. Toyoda, and K. Midorikawa, "Three-dimensional microoptical components embedded in Foturan glass by femtosecond laser," Proc. SPIE-Int. Soc. Opt. Eng., vol.1 5063, pp. 103-107, 2003.

H. Kumagai, "Challenges toward laser cooling of silicon," IEEE Circuits \& Devices, vol.20, pp. 32-37, 2003.

A. Suda and K. Midorikawa, "Recent progress in high-brightness coherent XUV sources based on high-order harmonic generation," Proc. SPIE-Int. Soc. Opt. Eng., vol. 5120, pp. 275-280, 2003.

H. Kawano, Y. Nabekawa, A. Suda, Y. Ohishi, H. Mizuno, A. Miyawaki, and K. Midorikawa, "Adaptive control of two-photon fluorescence from green fluorescent protein by shaped femtosecond excitation pulses," Proc. SPIE-Int. Soc. Opt. Eng., vol.1 5143, pp. 10-17, 2003.

H. Kawano, A. Suda, K. L. Ishikawa, and K. Midorikawa, "Polarizations of Raman sidebands generated in impulsively stimulated rotational Raman scattering," Ultrafast Phenomena 13, Springer, pp. 226-228, 2003.

K. Sugioka, "3-D micromachining inside glass by femtosecond laser: application to manufacture of microreactor," Optical Alliance, vol. 14, pp. 16-21, 2003(in Japanese).

K. Sugioka, "Microfabrication of glass by advanced laser processing," Ceramics, vol. 38, pp. 880-883, 2003(in Japanese).

T. Okada and K. Sugioka, "Application of laser ablation - the state of the art and future prospects," J. Plasma Fusion Res., vol. 79, pp. 1278-1286, 2003(in Japanese).

Y. Hanada, K. Sugioka, F. Takase, I. Miyamoto, Y. Takai, and K. Midorikawa, "Micromachining of transparent materials by Laser-Induced Plasma-Assisted Ablation(LIPAA)," Reports on the 318th Topical Meeting of The Laser Society of Japan: Laser Technology for 21st Century, pp. 7-12, 2003(in Japanese).


2002

E Takahashi, Y. Nabekawa, K. Midorikawa, "Generation of 10- μJ coherent extreme-ultraviolet light by use of high-order harmonics,", Opt. Lett., vol.27, pp. 1920-1922, 2002.

K. Sugioka, T Akane, K Obata, K. Toyoda, and K. Midorikawa, "Multiwavelength excitation processing using F2 and KrF excimer lasers for precision microfabrication of hard materials," Appl. Surface Science, vol.197-198, pp. 814-821,2002.

K. Sugioka, T Akake, K Obata, K. Midorikawa, "VUV-UV multiwavelength excitation process using F2 and KrF excimer lasers," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.4644, pp. 9-18, 2002.

K. Sugioka, K Obata, K. Midorikawa, MH Hong, D.J. Wu, L.L. Wong,Y.F, Lu, and T.C. Chong, "Microprocessing of glass by hybrid laser processing," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.4760, pp. 230-238, 2002.

S. Ruschin, K. Sugioka, G. Yarom, T. Akane, K. Midorikawa, "Laser processing of ion-exchange waveguides in glass," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.4637, pp. 235-242, 2002.

M.H. Hong, K. Sugioka, D.J. Wu, L.L. Wong, Y.F. Lu, K. Midorikawa,and T.C. Chong, "Crack-free laser processing of glass substrate and its mechanisms," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.4637, pp. 270-279,2002.

M Kurata-Nishimura, F. Tokanai, Y. Matsuo, T. Kobayashi, J. Kawai,H. Kumagai, K. Midorikawa, and Y. Hayashizaki. "Simultaneous atomization and ionization of large organic molecules using femtosecond laser ablation," Appl. Surf. Sci., vol.197-198, pp. 715-719, 2002.

K. L. Ishikawa, H. Kumagai, and K. Midorikawa, "High-power regime of femtosecond-laser pulse propagation in silica: multiple-cone formation," Phys. Rev. E. Statistical Phys, Plasmas, Fluids, & Related Interdisciplinary Topics, vol.66, pp. 056608/1-8, 2002.

Cho Sung-Hak, H. Kumagai, and K. Midorikawa, "In situ observation of dynamics of plasma formation and refractive index modification in silica glasses excited by a femtosecond laser," Opt. Commu., vol.207, pp. 243-253, 2002.

Cho Sung-Hak, H. Kumagai, and K. Midorikawa, "Fabrication of internal diffraction gratings in planar silica plates using low-density plasma formation induced by a femtosecond laser," Nuclear Instruments & Methods in Phys. Research Section B-Beam Interactions with Materials & Atoms, vol.197,pp. 73-82, 2002.

M. H. Hong, K. Sugioka, Y. F. Lu, K. Midorikawa, and T.C. Chong, "Laser microfabrication of transparent hard materials and signal diagnostics," Elsevier. Appl. Surface Science, vol.186, pp. 556-561, 2002.

K. Obata, K. Sugioka, T. Akane, N. Aoki, K. Toyoda, and K. Midorikawa, "Characterization of fused silica ablation by F2-KrF excimer laser multiwavelength excitation process," Proc. SPIE-Int. Soc. Opt. Eng., vol.4426, pp. 441-444, 2002.

H. Kawano, A. Suda, and K. Midorikawa, "Control of spectral distribution of Raman sidebands in impulsively stimulated rotational Raman scattering," Appl. Phys. Lett., vol.80, pp. 894-896, 2002.

T. Akane, K. Sugioka, K. Obata, N. Aoki, K. Toyoda, and K. Midorikawa, "GaN micromachining by short wavelength pulsed laser irradiation," Proc. SPIE-Int. Soc. Opt. Eng., vol.4426, pp. 445-448, 2002.

K. Midorikawa, H. Kawano, A. Suda, C. Nakura, and M. Obara, "Polarization porperties of ultrafast white-light continuum generated in condensed media," Appl. Phys. Lett., vol.80, pp. 923-925, 2002.

K. Obata, K. Sugioka, T. Akane, K. Midorikawa, N. Aoki, and K. Toyoda, "Efficient refractive-index modification of fused silica by resonance-photoionization-like process using F2 and KrF excimer lasers," Opt. Lett., vol.27, pp. 330-332, 2002.

K. Ishikawa and K. Midorikawa, "Coherent control of extreme uv absorption and photoemission by the simultaneous irradiation of ultrashort extreme uv and laser pulses," Phys. Rev. A, vol.65, pp. 031403/1-4, 2002.

K. Ishikawa and K. Midorikawa, "Two-photon ionization of He+ as a nonlinear optical effect in the soft x-ray region," Phys. Rev. A, vol.65, pp. 043405/1-7, 2002.

M. Mori, E. J. Takahashi, and K. Kondo, "Image of second harmonic emission generated from ponderomotively excited plasma density gradient," Phys. Plasmas, vol.9, pp. 2812-2815, 2002.

Y. Nabekawa, Y. Shimizu, and K. Midorikawa, "Sub-20-fs terawatt-class laser system with a mirrorless regenerative amplifier and an adaptive phase controller," Opt. Lett., vol.27, pp. 1265-1267, 2002.

K. Ishikawa, H. Kawano, and K. Midorikawa, "Polarization effect in impulsive rotational Raman scattering," Phys. Rev. A, vol.66, pp. 031802(R)/1-4, 2002.

M. Nurhuda, A. Suda, M. Hatayama, K. Nagasaka, and K. Midorikawa, "Propagation dynamics of femtosecond laser pulses in argon," Phys. Rev. A, vol.66, pp. 023811/1-8, 2002.

H. Kawano, A. Suda, K. Midorikawa, "Explicit control of spectral distribution in impulsively stimulated rotational Raman scattering," Appl. Phys. B, vol.74, Suppl., pp. S103-S105, 2002.

E. J. Takahashi, Y. Nabekawa, T. Otsuka, M. Obara, and K. Midorikawa, "Generation of highly coherent submicrojoule soft x rays by high-order harmonics," Phys. Rev. A, vol.66, pp. 021802/1-4, 2002.

M. Nurhuda, A. Suda, and K. Midorikawa, "Ionization-induced high-order nonlinear susceptibility," Phys. Rev. A, vol.66, pp. 041802(R)/1-4, 2002.

H. Kawano, K. Ishikawa, A. Suda, and K. Midorikawa, "Polarization of multiple rotational Raman sidebands from hydrogen gas by delayed four-wave Raman mixing in the femtosecond regime," Opt. Lett., vol.27, pp. 1917-1919, 2002.

G. Veres, S. Matsumoto, Y. Nabekawa, and K. Midorikawa, "Enhancement of third-harmonic generation in absorbing media," Appl. Phys. Lett.," Opt. Lett., vol.81, pp. 3714-3716, 2002.

C. Nagura, A. Suda, H. Kawano, M. Obara, and K. Midorikawa, "Generation and characterization of ultrafast white-light continuum in condensed media," Appl. Opt., vol.41, pp. 3735-3742, 2002.

K. Midorikawa, E. J. Takahashi, and Y. Nabekawa, "High-brightness coherent soft X-ray generation by high-order harmonics," AIP Conf. Proc., vol.634, pp. 3-10, 2002.

K. Midorikawa, E. J. Takahashi, and Y. Nabekawa, "Generation of high intensity coherent XUV light using high-order harmonics," AIP Conf. Proc., vol.641, pp. 412-417, 2002.

K. Obata, K. Sugioka, T. Kouno, H. Takai, K. Toyoda, and K. Midorikawa, "High-speed and efficient control of refractive index change of fused silica by multiwavelength excitation process using F2 and KrF excimer lasers," Proc. SPIE-Int. Soc. Opt. Eng., vol.4830, pp. 373-378, 2002.

H. Kumagai, Y. Asakawa, K. Midorikawa, and M. Obara, "Towards laser cooling of silicon atoms," Proceedings of International Symposium on Manipulation of Atoms and Molecules by Electronic Excitations (ISMAMEE), pp. 114-115, 2002.

H. Kumagai, Y. Asakawa, K. Midorikawa, M. Obara, and P. Gill, "All-solid-state deep-UV coherent light source for laser cooling of silicon atoms," Proceedings of the 6th Symposium on Frequency Standards and Metrology, p. 111, 2002.

K. Sugioka, "Materials processing by ultra-short wavelength lasers," Jpn. J. Optics, vol. 31, pp. 616-620, 2002(in Japanese).

S. H. Cho, H. Kumagai, and K. Midorikawa, "Dynamics of bulk modification in silica glasses induced by a tightly foused femtosecond laser," Proceeding of the 9th International Workshop on Femtosecond Technology (FST 2002), p. 199, 2002.

H. Kumagai, M. Fujimoto, S. H. Cho, K. L. Ishikawa, S. Aoshima, Y. Tsuchiya, and K. Midorikawa, "Direct observation of pulse propagation of femtosecond laser in quartz glass with femtosecond time-resolved optical polarigraphy(FTOP)," Proceeding of the 9th International Workshop on Femtosecond Technology (FST 2002), p. 205, 2002.

Y. Ueda, T. Iwane, H. Kumagai, T. Meguro, K. Midorikawa, and M. Obara, "Optogalvanic spectroscopy of silicon atoms," 2002 IEEE/LEOS Annual Meeting Conference Proceedings Vol. 1, pp. 283-284, 2002.

H. Kumagai, "All-solid-state, continous-wave, single-frequency, tunable, deep-ultraviolet coherent light source by efficient sum frequency generation with dual frequency enhancement," 2002 IEEE/LEOS Annual Meeting Conference Proceedings Vol. 2, pp. 436-437, 2002.

K. Sugioka, "Microprocessing of transparent materials using lasers," Proc. 38th Summer Seminor on Laser processing and Spectroscopy, pp. 26-33, 2002.

K. Sugioka, "Comparison between DUV/VUV and femtosecond laser processing of dielectrics and semiconductors," Rev. Laser Eng., Vol. 30, pp. 226-232, 2002.(in Japanese)

K. Sugioka, "Three-dimensional microfabrication by femtosecond laser," Proc. 30th Meeting on Lightwave Sensing Technology, pp. 159-165, 2002.(in Japanese)

T. Iwane, Y. Asakawa, H. Kumagai, K. Midorikawa, and M. Obara, "A high finesse extrernal cavity with a LiB3O5 crystal for efficient frequency doubling of CW Ti:sapphire laser," 2002 IEEE/LEOS Annual Meeting Conference Proceedings Vol. 2, pp. 440-441, 2002.

H. Kumagai, S. H. Cho, K. L. Ishikawa, K. Midorikawa, M. Fujimoto, S. Aoshima, and Y. Tsuchiya, "Direct observation of pulse propagation of femtosecond laser in quartz glass with femtosecond time-resolved optical polarigraphy," Technical Digest of Conference on Laser and Electro-Optics (CLEO 2002), p. 123, 2002.


2001

H. Kurata, H. Kumagai, and K. Ozasa, "High-resolution elemental mapping of titanium oxide / aluminium oxide multilayer by spectrum-imaging," J. Electron Microsc., vol.50, pp. 141-146, 2001.

K. Obata, K. Sugioka, T. Akane, N. Aoki, K. Toyoda, and K. Midorikawa, "Multiwavelength excitation process of fused silica by combination of F2 and KrF excimer lasers," Proc. SPIE-Int. Soc. Opt. Eng., vol.4274, pp. 141-148, 2001.

T. Akane, K. Sugioka, K. Obata, S. Nomura, K. Hammura, N. Aoki, K. Toyoda, Y. Aoyagi, and K. Midorikawa, "GaN etching by simultaneous irradiation of KrF excimer laser and F2 laser," Proc. SPIE-Int. Soc. Opt. Eng., vol.4274, pp. 133-140, 2001.

Y. Asakawa, H. Kumagai, K. Midorikawa, and M. Obara, "Sum-frequency generation of a CW single-frequency mode coherent light at 252 nm for laser cooling of silicon," Proc. SPIE-Int. Soc. Opt. Eng., vol.4269, pp. 197-204, 2001.

H. S. Nguyen, A. Suda, Y. Tamaki, and K. Midorikawa, "High-order harmonic and attosecond pulse generations: Bulk media versus hollow waveguides," Phys. Rev. A, vol.63, pp. 063806/1-10, 2001.

S. Fukaya, K. Adachi, M. Obara, and H. Kumagai, "The growth of Cr4+:YAG and Cr4+:GGG thin films by pulsed laser deposition," Opt. Commun., vol.187, pp. 373-377, 2001.

S. Ruschin, K. Sugioka, G. Yarom, T. Akane, and K. Midorikawa, "Modification of refractive index in Ag/Na ion-exchanged glasses by vacuum-ultraviolet pulse laser irradiation," Appl. Phys. Lett., vol.78, pp. 1844-1846, 2001.

O. Maya, Y. Nagata, M. Obara, Y. Aoyagi, and K. Midorikawa, "Design of an ultrahigh-gain Ni-like Kr soft-X-ray laser by use of an optical-field-induced ionization-initiated transient collisional excitation scheme," Jpn. J. Appl. Phys. Pt.1, vol.40, pp. 153-158, 2001.

K. Midorikawa, Y. Tamaki, J. Itatani, and M. Obara, "Optimization of conversion efficiency and spatial quality of high-order harmonic generation," J. Phys. IV, vol.11, pp. Pr2/339-344, 2001.

Y. Tamaki, J. Itatani, M. Obara, and K. Midorikawa, "Highly coherent soft X-ray generation by macroscopic phase matching of high-order harmonics," Jpn. J. Appl. Phys. Pt.2, vol.40, pp. L1154--L1156, 2001.

K. Midorikawa, E. J. Takahashi, Y. Tamaki, Y. Nagata, and Y. Nabekawa, "Highly-coherent, high-energy, high-order harmonic generation," Proc. SPIE-Int. Soc. Opt. Eng., vol.4505, pp. 189-194, 2001.

K. Obata, K. Sugioka, T. Akane, N. Aoki, K. Toyoda, and K. Midorikawa, "Influence of laser fluence and irradiation timing of F2 laser on ablation properties of fused silica in F2-KrF excimer laser multi-wavelength excitation process," Appl. Phys. A, vol.73, pp. 755-759, 2001.

T. Akane, K. Sugioka, K. Midorikawa, J. J. Dubowski, N. Aoki, and K. Toyoda, "X-ray photoelectron spectroscopic study of KrF excimer laser nitrided InP surface," J. Appl. Phys., vol.90, pp. 5851-5855, 2001.

T. Akane, K. Sugioka, K. Hammura, Y. Aoyagi, K. Midorikawa, K. Obata, K. Toyoda, and S. Nomura, "GaN ablation etching by simultaneous irradiation with F2 laser and KrF excimer laser," J. Vac. Sci. Technol. B, vol.19, pp. 1388-1391, 2001.

M. Jyumonji, H. Okumura, K. Sera, F. Okumura, K. Sugioka, and K. Midorikawa, "Double-pulse method for enlarging lateral grain growth of excimer laser annealed poly-Si thin films," NEC Res. Develop., vol.42, pp. 272-276, 2001.

E. Miura, H. Honda, K. Katsura, E. J. Takahashi, and K. Kondo, "Enhancement of X-ray emission from a cooled Kr gas jet irradiated by an ultrashort KrF laser pulse," Jpn. J. Appl. Phys. Pt.1, vol.40, pp. 7067-7071, 2001.

A. Gaeta, F. Wise, G. I. Koprinkov, A. Suda, P. Wang, K. Midorikawa, "Comment on "Self-compression of high-intensity femtosecond optical pulses and spatiotemporal soliton generation and reply"," Phys. Rev. Lett., vol.87, pp. 229401-1-229402-1, 2001.

A. Suda, Y. Oishi, K. Nagasaka, P. Wang, and K. Midorikawa, "A spatial light modulator based on fused-silica plates for adaptive feedback control of intense femtosecond laser pulses," Opt. Exp., vol.9, pp. 2-6, 2001.

H. Kumagai, "Development of a high-power deep-ultraviolet continuous-wave coherent light source for laser cooling of silicon atoms," 2001 IEEE/LEOS Ann. Meet. Conf. Proc. Vol. 2, pp. 588-589, 2001.

M. H. Hong, K. Sugioka, D. J. Wu, L. L. Wong, Y. F. Lu, K. Midorikawa, and T. C. Chong, "Laser-induced-plasma-assisted ablation for glass microfabrication," SPIE-Int. Soc. Opt. Eng. Proceedings of Spie - the International Society for Optical Engineering, vol.4595, pp. 138-146, 2001.

K. Sugioka, T. Akane, K. Obata, and K. Midorikawa, "Hybrid laser processing: Novel approach to precision microfabrication," Lasers in Manufacturing 2001: Proc. 1st Int. WLT-Conf. on Lasers in Manufacturing, pp. 284-296, 2001.

I. G. Koprinkov, A. Suda, P. Wang, and K. Midorikawa, "Self-compression of femtosecond laser pulses in solid bulk material," Proc. Int. Conf. on Lasers 2000, pp. 900-902, 2001.

H. Kumagai, Y. Asakawa, K. Midorikawa, M. Obara, "Robust deep-UV coherent light source for laser cooling of silicon atoms," Technical Digest of CLEO/Pacific Rim 2001 Vol. 1, pp. II/476-477, 2001.

H. Kumagai, M. Fujimoto, S. Aoshima, S. H. Cho, Y. Tsuchiya, and K. Midorikawa, "Direct observation of pulse propagation of femtosecond laser in glass with femtosecond time-resolved optical polarigraphy (FTOP) ," Technical Digest of CLEO/Pacific Rim 2001 Vol. 1, pp. I/310-311, 2001.

H. Kumagai, Y. Asakawa, K. Midorikawa, and M. Obara, "Robust deep-UV coherent light source toward laser cooling of silicon atoms," Technical Digest of CLEO/Pacific Rim 2001 Vol. 2, pp. 476-477, 2001.

Y. Mizutani and H. Okamura, "Simulation of ionizing clusters by an intense optical field," Res. Spectrosc., vol.50, pp. 167-170, 2001(in Japanese).

A. Suda, K. Torizuka, and K. Midorikawa, "Generation of attosecond light pulse: Prospect and subject," Oyo Buturi, vol. 70, pp. 156-160, 2001(in Japanese).

K. Sugioka and K. Midorikawa, "Microfabrication of glass by short wavelength lasers," Optical and Electro-Optical Engineering Contact, vol. 39, pp. 24-31, 2001(in Japanese).

K. Sugioka, K. Obata, and K. Midorikawa, "Precision microfabrication by UV and VUV lasers," Reports on The 294th Topical Meeting of The Laser Society of Japan, vol. 39, pp. 35-40, 2001(in Japanese).

K. Sugioka, N. Aoki, M. Masuda, K. Obata, M. Kawai, K. Yomoyama, K. Toyoda, and K. Midorikawa, "Three-dimensional microfabrication of photostructurable glass by femtosecond laser," DENKI GAKKAI KENKYUKAI SIRYOU, vol. OQD-01-53-62, pp. 25-29, 2001(in Japanese).

K. Obata, K. Sugioka, T. Akane, N. Aoki, K. Toyoda, and K. Midorikawa, "Multiwavelength excitation process of fused silica by F2-KrF excimer lasers," HIKARI RYOSHI DEVICE KENKYUKAI SHIRYO, pp. 25-30, 2001(in Japanese).


2000

K. Sugioka and I. Miyamoto, "Ultrashort pulse vs. ultrashort wavelength laser processing," Proceedings of 51th Laser Materials Processing Conference, pp. 28-37, 2000(in Japanese).

K. Sugioka, K. Midorikawa, and K. Suzuki, "Precision microfabrication of hard materials by laser ablation," J. Jpn. Res. Grp. Electr. Discharges, no. 164, pp. 13-22, 2000(in Japanese).

K. Sugioka, "Application of vacuum ultraviolet and femtosecond lasers for precision microfabrication," Journal of Japan Laser Processing Society, vol.7, pp. 97-102, 2000(in Japanese).

T. Akane, K. Sugioka, and K. Midorikawa, "Nonalloy Ohmic contact fabrication in a hydrothermally grown n-ZnO(0001) substrate by KrF excimer laser irradiation," J. Vac. Sci. Technol. B, vol.18, pp. 1406-1408, 2000.

T. Akane, K. Sugioka, S. Nomura, K. Hammura, K. Obata, N. Aoki, K. Toyoda, Y. Aoyagi, and K. Midorikawa, "F2 ablation etching of GaN," Proc. SPIE-Int. Soc. Opt. Eng., vol.4088, pp. 70-73, 2000.

Nguyen Hong Shon, A. Suda, and K. Midorikawa, "Harmonic generation by intense ultrashort laser pulses in rare gases," Proc. SPIE-Int. Soc. Opt. Eng., vol.3886, pp. 582-587, 2000.

H. Kumagai, K. Midorikawa, M. Obara, and Cho Sung-Hak, "Time-resolved dynamics of plasma self-channeling and bulk modification in silica glasses induced by a high-intensity femtosecond laser," Proc. SPIE-Int. Soc. Opt. Eng., vol.4088, pp. 40-43, 2000.

T. Akane, K. Sugioka, and K. Midorikawa, "KrF excimer laser induced ohmic metallization of ZnO substrate," Proc. SPIE-Int. Soc. Opt. Eng., vol.3933, pp. 218-224, 2000.

K. Sugioka and Veiko Vadim P., "Overview of novel approaches for laser microfabrication of advanced materials," Proc. SPIE-Int. Soc. Opt. Eng., vol.4157, pp. 149-157, 2000.

K. Sugioka, K. Midorikawa, I. Miyamoto , and Sigmon Thomas W., "Novel technology for laser precision microfabrication of hard materials," Proc. SPIE-Int. Soc. Opt. Eng., vol.4088, pp. 110-117, 2000.

N. Aoki, T. Akane, K. Sugioka, K. Toyoda, Dubowski Jan J., and K. Midorikawa, "Pulsed laser nitridation of InP ," Proc. SPIE-Int. Soc. Opt. Eng., vol.4088, pp. 80-83, 2000.

Nurhuda Muhammad, A. Suda, and K. Midorikawa, "Numerical simulation of femto- and subfemtosecond pulse generation by spectral control of high-order harmonic waves," Rev. Laser Eng., vol.28, pp. 500-505, 2000.

A. Suda, "Progress in optics 1999: Laser," Jpn. J. Optics, vol.29, pp. 206-207, 2000(in Japanese).

Koprinkov Ivan G., A. Suda, Wang Pengqian, and K. Midorikawa, "Self-compression of high-intensity femtosecond optical pulses and spatiotemporal soliton generation," Phys. Rev. Lett., vol.84, pp. 3847-3850, 2000.

Y. Tamaki, J. Itatani, M. Obara, and K. Midorikawa, "Optimization of conversion efficiency and spatial quality of high-order harmonic generation," Phys. Rev. A, vol.62, pp. 0-63802/1-5, 2000.

K. Ishikawa and Blenski Thomas, "Explosion dynamics of rare-gas clusters in an intense laser field," Phys. Rev. A, vol.62, pp. 0-63204/1-11, 2000.

Nguyen Hong Shon, A. Suda, and K. Midorikawa, "Generation and propagation of high-order harmonics in high-pressure gases," Phys. Rev. A, vol.62, pp. 0-23801/1-6, 2000.

K. Furusawa, K. Takahasi, Cho Sung-Hak, H. Kumagai, K. Midorikawa, and M. Obara, "Femtosecond laser micromaching of TiO2 crystal surface for robust optical catalyst," J. Appl. Phys., vol.87, pp. 1604-1609, 2000.

Koprinkov Ivan G., A. Suda, and K. Midorikawa, "Interference between stimulated Raman scattering and self-phase modulation in pressurized methane in highly transient femtosecond pump regime," Opt. Commun., vol.174, pp. 299-304, 2000.

T. Fujii, H. Kumagai, K. Midorikawa, and M. Obara, "Development of a high-power deep-ultraviolet continous-wave coherent light source for laser cooling of silicon atoms," Opt. Lett., vol.25, pp. 1457-1459, 2000.

T. Akane, K. Sugioka, S. Nomura, K. Hammura, N. Aoki, K. Toyoda, Y. Aoyagi, and K. Midorikawa, "F2 laser etching of GaN," Appl. Surf. Sci., vol.168, pp. 335-339, 2000.

K. Obata, K. Sugioka, K. Toyoda, H. Takai, and K. Midorikawa, "Si barrier metal growth by hybrid radical beam-pulsed laser deposition of TiN," Jpn. J. Appl. Phys. Pt.1, vol.39, pp. 7031-7034, 2000.

Zhang Jie, K. Sugioka, T. Takahashi, K. Toyoda, and K. Midorikawa, "Dual-beam ablation of fused silica by multiwavelength excitation process using KrF excimer and F2 lasers," Appl. Phys. A, vol.71, pp. 23-26, 2000.


1999

A. Suda, Wang Pengqian, Koprinkov Ivan G., and K. Midorikawa, "Self-compression of femtosecond laser pulses," Reports on Topical Meeting of the Laser Society of Japan, New Laser, no. 99, pp. 13-17, 1999(in Japanese).

K. Midorikawa, Y. Tamaki, J. Itatani, Y. Nagata, and M. Obara, "Phase-matched high-order harmonic generation by guided intense femtosecond pulses," Inst. Phys. Conf. Ser., pp. 515-521, 1999.

K. Obata, K. Sugioka, H. Takai, and K. Midorikawa, "TiN growth on Si(100) by pulsed laser deposition using homogenized KrF excimer laser beam," Appl. Surf. Sci., vol. 138/139, pp. 335-339, 1999.

K. Midorikawa, Y. Tamaki, J. Itatani, Y. Nagata, and M. Obara, "Phase-matched high-order harmonic generation by guided intense femtosecond pulses," IEEE J. Selected Topics in Quantum Electronics, vol. 5, pp. 1475-1485, 1999.

Ilev Ilko Kolev, Waynant Ronald W., H. Kumagai, and K. Midorikawa, "Double-pass fiber Raman laser: A powerful and widely tunable in the ultraviolet, visible, and near-infrared fiber Raman laser for biomedical investigations," IEEE J. Selected Topics in Quantum Electronics, vol. 5, pp. 1013-1018, 1999.

Cho Sung-Hak, H. Kumagai, K. Midorikawa, and M. Obara, "Fabrication study of double cladding structure in optical fibers using plasma channeling induced by a femtosecond laser," Proc. SPIE-Int. Soc. Opt. Eng., vol. 3885, pp. 293-302, 1999.

K. Sugioka, Zhang Jie, and K. Midorikawa, "Hybrid laser processing for micromachining for hard materials," Proc. SPIE-Int. Soc. Opt. Eng., vol. 3822, pp. 6-17, 1999.

Zhang Jie, K. Sugioka, K. Midorikawa, J. J. Dubowski, H. Helvajian, and E. W. Kreutz, "Micromachining of glass materials by laser-induced plasma-assisted ablation (LIPAA) using a conventional nanosecond laser," Proc. SPIE-Int. Soc. Opt. Eng., vol. 3618, pp. 363-369, 1999.

K. Midorikawa, Y. Tamaki, J. Itatani, and M. Obara, "Phase-matched high-order-harmonic generation by self-guided intense femtosecond laser pulses," Proc. SPIE-Int. Soc. Opt. Eng., vol. 3776, pp. 135-142, 1999.

Maya Oki, Y. Nagata, M. Obara, Y. Aoyagi, and K. Midorikawa, "Ultra-high gain Ni-like Kr soft x-ray laser by optical field ionization initiated transient collisional excitation scheme," Proc. SPIE-Int. Soc. Opt. Eng., vol. 3776, pp. 143-149, 1999.

Koprinkov Ivan G., A. Suda, Wang Pengqian, and K. Midorikawa, "Self-shortning of femtosecond laser pulses propagating in rare gas medium," Oyo Buturi, vol. 68, p. 1289, 1999(in Japanese).

Y. Tamaki, T. Itatani, Y. Nagata, M. Obara, and K. Midorikawa, "Highly-efficient, phase-matched high-harmonic generation by a self-guided laser beam," Phys. Rev. Lett., vol. 82, pp. 1422-1425, 1999.

Nguyen Hong Shon, A. Suda, and K. Midorikawa, "Generation and propagation of attosecond pulses in He gas with sub-10-fs driver pulses," Phys. Rev. A, vol. 60, pp. 2587-2590, 1999.

Y. Tamaki, Y. Nagata, M. Obara, and K. Midorikawa, "Phase-matched high-order-harmonic generation in a gas-filled hollow fiber," Phys. Rev. A, vol. 59, pp. 4041-4044, 1999.

T. Akane, M. Sano, H. Okumura, Y. Tsubo, T. Ishikawa, and S. Matsumoto, "Characterization of gas-source molecular beam epitaxial growth of strain-compensated Si1-x-yGexCy/Si(001) heterostructure," J. Cryst. Growth, vol. 203, pp. 80-86, 1999.

Koprinkov Ivan G., A. Suda, Wang Pengqian, and K. Midorikawa, "High-energy conversion efficiency of transient stimulated Raman scattering in methane pumped by the fundamental of a femtosecond Ti:sapphire laser," Opt. Lett., vol. 24, pp. 1308-1310, 1999.

T. Kawachi, K. Ando, C. Fujikawa, H. Oyama, N. Yamaguchi, T. Hara, and Y. Aoyagi, "Observation of excited level populations of Li-like aluminium ions in recombining plasma:Role of atomic processes involving doubly excited levels of Be-like ions," J. Phys. B, vol. 32, pp. 553-562, 1999.

Cho Sung-Hak, H. Kumagai, K. Midorikawa, and M. Obara, "Fabrication of double cladding structure in optical multimode fibers using plasma channeling excited by a high-intensity femtosecond laser," Opt. Commun., vol. 168, pp. 287-295, 1999.

A. Suda, A. Kadoi, K. Nagasaka, H. Tashiro, and K. Midorikawa, "Absorption and oscillation characteristics of a pulsed Cr4+: YAG laser investigated by a double-pulse pumping technique," IEEE J. Quantum Electron., vol. 35, pp. 1548-1553, 1999.

T. Akane, K. Sugioka, H. Ogino, H. Takai, and K. Midorikawa, "KrF excimer laser induced ablation-planarization of GaN surface," Appl. Surf. Sci., vol. 148, pp. 133-136, 1999.

Nguyen Hong Shon, A. Suda, and K. Midorikawa, "Attosecond pulse generation in He gas with few-cycle KrF driver pulses," Jpn. J. Appl. Phys. Pt.1, vol. 38, pp. 6298-6301, 1999.

Koprinkov Ivan G., A. Suda, Wang Pengqian, and K. Midorikawa, "Self-shortening of femtosecond laser pulses propagating in rare gas medium," Jpn. J. Appl. Phys. Pt.2, vol. 38, pp. L978-L980, 1999.

T. Akane, K. Sugioka, and K. Midorikawa, "High-speed etching of hexagonal GaN by laser ablation and successive chemical treatment," Appl. Phys. A, vol. 69, pp. S309-S313, 1999.

K. Obata, K. Sugioka, K. Toyoda, H. Takai, and K. Midorikawa, "TiN growth on Si by hybrid radical beam PLD," Appl. Phys. A, vol. 69, pp. S715-S718, 1999.

Zhang Jie, K. Sugioka, and K. Midorikawa, "High-quality and high-efficiency machining of glass materials by laser-induced plasma-assisted ablation using conventional nanosecond UV, visible, and infrared lasers," Appl. Phys. A, vol. 69, pp. S879-S882, 1999.

K. Furusawa, K. Takahasi, H. Kumagai, K. Midorikawa, and M. Obara, "Ablation characteristics of Au, Ag, and Cu metals using a femtosecond Ti:sapphire laser," Appl. Phys. A, vol. 69, pp. S359-S366, 1999.


1998

K. Midorikawa, Y. Nagata, DiMaruro et al., "Spectroscopic investigations of an optical-field-ionized X-ray laser with a microcapillary target," Applications of High Field and Short Wavelength Sources, pp. 65-69, 1998.

K. Sugioka, "Report on the SPIE international symposium on LASE'98," J. Jpn. Soc. Laser Tech., vol. 23, no. 2, pp. 29-32, 1998(in Japanese).

K. Sugioka, Zhang Jie, S. Wada, H. Tashiro, and K. Toyoda, "Novel ablation of wide band-gap materials by multiwavelength excitation using a VUV-UV laser system," Nanotechnology, vol. 9, pp. 99-103, 1998.

A. Suda, Kien Fam Le, and K. Midorikawa, "Attosecond pulse generation using high-order harmonics," Reports on Topical Meeting of the Laser Society of Japan, pp. 15-19, 1998(in Japanese).

H. Kumagai, "Novel soft X-ray multilayer mirrors through atomic layer deposition/epitaxy methods," HIKARI RYOSHI DEVICE KENKYUKAI SHIRYO, pp. 11-16, 1998(in Japanese).

K. Midorikawa and Y. Nagata, "Coherent soft X-Ray generation by subpicosecond, high intensity KrF laser pulses," J. Korean Phys. Soc., vol. 33, pp. 223-227, 1998.

K. Sugioka, S. Wada, and H. Tashiro, "Vaccum-ultra violet Raman laser and application to multiwavelength excitation process," Optronics, vol. 193, pp. 98-105, 1998(in Japanese).

K. Sugioka, Zhang Jie, S. Wada, H. Tashiro, K. Midorikawa, and K. Toyoda, "Precise microfabrication of wide band gap materials by VUV-UV multiwavelength ablation," Proc. SPIE-Int. Soc. Opt. Eng., vol. 3274, pp. 44-52, 1998.

Xu Shifa, Du Liren, K. Sugioka, K. Toyoda, and M. Jyumonji, "Preferred growth of epitaxial TiN thin film on silicon substrate by pulsed laser deposition," J. Mater. Sci.: Mater. Med., vol. 33, pp. 1777-1782, 1998.

K. Sugioka, Zhang Jie, S. Wada, H. Tashiro, and K. Midorikawa, "Precision laser ablation of wide band-gap materials using VUV-UV multiwavelength excitation," Proc. SPIE-Int. Soc. Opt. Eng., vol. 3683, pp. 108-117, 1998.

W. Sasaki and K. Sugioka, "Next generation processes by extremely short wavelength beams," OYO BUTURI, vol. 67, pp. 86-86, 1998(in Japanese).

K. Adachi, T. Ezaki, M. Obara, H. Kumagai, and K. Midorikawa, "Fabrication of waveguide laser crystals by laser ablation method:Toward the fabrication of laser crystals on Si substrates," The Review of Laser Engineering, vol. 26, pp. 415-420, 1998(in Japanese).

T. Hazegawa, K. Adachi, Y. Fukaya, M. Obara, H. Kumagai, and K. Midorikawa, "Fabrication of Cr4+: YAG and Yb3+: YAG optical waveguides by pulsed laser deposition," IEICE Tech. Rep., no. 16, pp. 7-12, 1998(in Japanese).

H. Kumagai, H. Matsuyama, Y. Iimura, K. Midorikawa, and M. Obara, "Development of soft x-ray multilayer mirrors for Water-Window" wavelengths through atomic layer control"," IEICE Tech. Rep., no. 19, pp. 25-30, 1998(in Japanese).

Kien Fam Le, K. Midorikawa, and A. Suda, "Attosecond pulse generation using high harmonics in the multicycle regime of the driver pulse," Phys. Rev. A, vol. 58, pp. 3311-3319, 1998.

Zhang Jie, K. Sugioka, S. Wada, H. Tashiro, and K. Midorikawa, "Study on high-speed deep etching of GaN film by UV laser ablation," Phys. Rev. A, vol. 189/190, pp. 725-729, 1998.

K. Mori, Y. Tamaki, M. Obara, and K. Midorikawa, "Second-harmonic generation of femtosecond high-intensity Ti:sapphire laser pulses," J. Appl. Phys., vol. 83, pp. 2915-2919, 1998.

Zhang Jie, K. Sugioka, and K. Midorikawa, "Direct fabrication of microgratings in fused quartz by laser-induced plasma-assisted ablation with a KrF excimer laser," Opt. Lett., vol. 23, pp. 1486-1488, 1998.

Zhang Jie, K. Sugioka, S. Wada, H. Tashiro, K. Toyoda, and K. Midorikawa, "Precise microfabrication of wide band gap semiconductors (SiC and GaN) by VUV-UV multiwavelength laser ablation," Appl. Surf. Sci., vol. 127/129, pp. 793-799, 1998.

K. Sugioka, Zhang Jie, Ruschin Schlomo, S. Wada, H. Tashiro, and K. Toyoda, "Vacuum-ultraviolet laser-induced refractive index change of fused silica," Appl. Surf. Sci., vol. 127/129, pp. 843-847, 1998.

Kien Fam Le, K. Midorikawa, and A. Suda, "VAttosecond pulse generation using high harmonics of the KrF laser driver pulse," Jpn. J. Appl. Phys. Pt.2, vol. 37, pp. L733-L736, 1998.

Cho Sung-Hak, H. Kumagai, I. Yokota, K. Midorikawa, and M. Obara, "Observation of self-channeled plasma formation and bulk modification in optical fibers using high-intensity femtosecond laser," Jpn. J. Appl. Phys. Pt.2, vol. 37, pp. L737-L739, 1998.

Y. Tamaki, M. Obara, and K. Midorikawa, "Second-harmonic generation from intense, 100-fs Ti:sapphire laser pulses in potassium dihydrogen phosphate, cesium lithium borate and b-barium metaborate," Jpn. J. Appl. Phys. Pt.1, vol. 37, pp. 4801-4805, 1998.

Zhang Jie, K. Sugioka, and K. Midorikawa, "Laser-induced plasma-assisted ablation of fused quartz using the fourth harmonic of a Nd+:YAG laser," Appl. Phys. A, vol. 67, pp. 545-549, 1998.

Zhang Jie, K. Sugioka, and K. Midorikawa, "High-speed machining of glass materials by laser-induced plasma-assisted ablation using a 532-nm laser," Appl. Phys. A, vol. 67, pp. 499-501, 1998.

Y. Tamaki, K. Midorikawa, and M. Obara, "Phase-matched third-harmonic generation by nonlinear phase shift in a hollow fiber," Appl. Phys. B, vol. 67, pp. 59-63, 1998.



1997

K. Midorikawa, "Recent progress of coherent soft x-ray generation by ultrashort high-intensity lasers at RIKEN," Proc. 5th Symp. on Laser Spectroscopy, vol. 5, no. 3, pp. 54-61, 1997.

Zhang Jie, K. Sugioka, S. Wada, H. Tashiro, K. Toyoda, and Ruschin Schlomo, "Origin of high-speed modification of refractive index in fused quartz by vacuum ultraviolet laser irradiation," IEEE J. Selected Topics in Quantum Electronics, vol. 3, pp. 789-795, 1997.

K. Sugioka, "Machining of fused silica by laser ablation using VUV-UV multiwavelength excitation," New Glass, vol. 12, no.4 , pp. 8-13, 1997(in Japanese).

K. Sugioka and K. Toyoda, "Microprocessing of electronic materials using short wavelength lasers," Solid State Phenom., vol. 55, pp. 38-39, 1997.

M. Okoshi, H. Kumagai, and K. Toyoda, "Pulsed laser deposition of carbon nitride thin films in nitrogen gas ambient," J. Mater. Res., vol. 12, pp. 3376-3379, 1997.

T. Takasaki, A. Suda, K. Sato, K. Nagasaka, and H. Tashiro, "Stable propagation of non-Gaussian beams in a multiple-pass cell," Appl. Opt., vol. 36, pp. 3413-3420, 1997.

Ilev Ilko Kolev, H. Kumagai, and K. Toyoda, "Simple wide-range method for angle measurement with a point fiber-optic output," Appl. Opt., vol. 36, pp. 376-379, 1997.

Ilev Ilko Kolev, H. Kumagai, and K. Toyoda, "Refractive-index dispersion measurement of bulk optical materials using a fiber raman laser widely tunable in the visible and near-infrared," Opt. Rev., vol. 4, pp. 61-64, 1997.

Ilev Ilko Kolev, H. Kumagai, K. Toyoda, Uttamchandani Deepak, and Culshaw Brian, "Alternative fiber-optic backreflectance sensor for measurement of the effective focal lengths of potical elements and distances," Opt. Rev., vol. 4, pp. 58-60, 1997.

Y. Nagata and K. Midorikawa, "Diagnostics of the fully-stripped boron plasma produced by intense KrF laser irradition of Boron clusters in a preformed plasma," Proc. SPIE-Int. Soc. Opt. Eng., vol. 3156, pp. 308-316, 1997.

M. Ezaki, H. Kumagai, K. Adachi, K. Toyoda, and M. Obara, "Growth and characterization of Nd:YAG epitaxial planar waveguides by pulsed laser deposition," Proc. SPIE-Int. Soc. Opt. Eng., vol. 3092, pp. 269-272, 1997.

M. Hagiwara, M. Suzuki, O. Suto, T. Takahashi, S. Kosugi, S. Hibino, A. Suda, and H. Tashiro, "Influence of shock waves in the discharge region of TEA-CO2 laser," Proc. SPIE-Int. Soc. Opt. Eng., vol. 2987, pp. 22-28, 1997.

A. Suda, H. Tashiro, T. Takasaki, K. Sato, and K. Nagasaka, "Recent progress in high-power para-H2 and ortho-D2 Raman lasers," Proc. SPIE-Int. Soc. Opt. Eng., vol. 2987, pp. 122-130, 1997.

H. Omichi, F. Shimizu, H. Otake, N. Sarukura, M. Yamanaka, S. Wada, A. Shiratori, M. Takahashi, T. Hamano, and H. Kumagai, "Report on CLEO/QELS '97," Rev. Laser Eng., vol. 25, pp. 588-607, 1997(in Japanese).

H. Kumagai, "Recent progress in soft x-ray multilayer mirrors through atomic layer deposition/ epitaxy methods," Rev. Laser Eng., vol. 25, pp. 355-361, 1997(in Japanese).

K. Sugioka, S. Wada, H. Tashiro, K. Toyoda, "Ablation using vacuum-ultraviolet lasers," Rev. Laser Eng., vol. 25, pp. 283-287, 1997(in Japanese).

M. Ishii and H. Kumagai, "Fabrication of short-period multilayer mirrors by atomic layer control," OYO BUTURI, vol.66, pp. 1357-1358, 1997(in Japanese).

T. Kawachi, K. Ando, Y. Aoyagi, M. Aoyama, T. Hara, and A. Sasaki, "Observation of amplified spontaneous emission in the soft X-ray region from a recombining lithiumlike aluminum plasma pumped by multipulse irradiation," J. Opt. Soc. Am. B, vol.14, pp. 1863-1869, 1997.

M. Jumonji, K. Sugioka, Y. Takai, H. Tashiro, and K. Toyoda, "Characterization of stainless steel SUS304 modified by KrF excimer laser implant-deposition and its properties after the thermal treatment," Rev. Laser Eng., vol.25, pp. 650-653, 1997.

T. Takahashi, K. Sugioka, and K. Toyoda, "Fabrication of micro-magnetic device by excimer laser ablation," Rev. Laser Eng., vol.25, pp. 301-305, 1997.

T. Takahashi, K. Sugioka, and K. Toyoda, "Fabrication of micro-magnetic device by excimer laser ablation," Rev. Laser Eng., vol.25, pp. 301-305, 1997(in Japanese).

T. Kawachi and T. Fujimoto, "Deexcitation and recombination of excited ions through doubly excited levels in a dense recombining plasma: Lithiumlike recombining plasma laser," Phys. Rev. E, vol.55, pp. 1836-1842, 1997.

Zhang Xiaojie, M. Izutsu, H. Kumagai, and K. Toyoda, "Femtosecond optical Kerr studies of photodarkening effect on nonlinear optical properties of CdSxSe1-x doped glass," Opt. Commun., vol.142, pp. 273-278, 1997.

Ilev Ilko Kolev, H. Kumagai, and K. Toyoda, "A powerful and widely tunable double-pass fiber Raman laser," Opt. Commun., vol.138, pp. 337-340, 1997.

H. Kumagai, K. Adachi, M. Ezaki, K. Toyoda, M. Obara, C. N. Afonso, E. Matthias, and T. Szorenyi , "Epitaxial growth of Nd:YAG thin films by pulsed laser deposition," Appl. Surf. Sci., vol.109/110, pp. 528-532, 1997.

K. Sugioka, S. Wada, H. Tashiro, and K. Toyoda, "Ablation of wide band-gap materials by multi-wavelength irradiation using a VUV Raman laser," Appl. Surf. Sci., vol.109/110, pp. 179-183, 1997.

Izawa Jun, K. Midorikawa, M. Obara, aNd K. Toyoda, "Picosecond ultraviolet optical parametric generation using a type-II phase-matched lithium triborate crystal for an injection seed of VUV lasers," IEEE J. Quantum Electron., vol. 33, pp. 1997-2001, 1997.

T. Shinozaki, A. Suda, K. Nagasaka, and H. Tashiro, "Wideband tuning of a high-pressure CO2 laser by means of intracavity active frequency shift," Jpn. J. Appl. Phys. Pt.1, vol. 36, pp. 1997-2001, 1997.

T. Takasaki, A. Suda, K. Sato, T. Shinozaki, K. Nagasaka, and H. Tashiro, "Ortho-deuterium Raman laser using the S0(2) rotational transition in the mid-infrared region," IEEE J. Quantum Electron., vol. 33, pp. 2174-2177, 1997.

T. Kawachi, K. Ando, H. Oyama, T. Hara, and Y. Aoyagi, "Enhancement of the 15.4 nm line of the lithiumlike aluminum recombining plasma laser using a half cavity," Jpn. J. Appl. Phys. Pt.1, vol. 36, pp. 7048-7049, 1997.

Ilev Ilko Kolev, H. Kumagai, and K. Toyoda, "Ultraviolet and blue discretely tunable double-pass fiber Raman laser," Appl. Phys. Lett., vol. 70, pp. 3200-3202, 1997.

Zhang Jie, K. Sugioka, S. Wada, H. Tashiro, and K. Toyoda, "Dual-beam ablation of fused quartz using 266 nm and VUV lasers with different delay-times," Appl. Phys. A, vol. 64, pp. 477-481, 1997.

Zhang Jie, K. Sugioka, S. Wada, H. Tashiro, and K. Toyoda, "Direct photoetching of single crystal SiC by VUV-266 nm multiwavelength laser ablation," Appl. Phys. A, vol. 64, pp. 367-371, 1997.