Novel nonlinear phenomena caused by interaction of ultrashort intense laser pulses with matters are investigated for creation of coherent x-ray sources including x-ray lasers and high-order harmonics. Nonlinear optical phenomena in the soft x-ray region and generation of ultrashort pulses in the region of attosecond seconds are pursued by use of high-order harmonics. In addition, applications of short wavelength and ultrashort laser pulses to material processing are studied.
Research Subject
| (1) |
Development of novel laser processing technology |
| (2) |
Generation and measurement of attosecond pulses |
| (3) |
Generation of ultrafast XUV radiation and its application to nonlinear optics in the soft x-ray region |
| (4) |
Ultrashort high intensity lasers and their applications to strong field interactions |
List of Selected Publications
| (1) |
Takahashi, E. J., Kanai, T., Ishikawa, K. L., Nabakawa, Y., and Midorikawa, K.:
"Coherent water window x-ray by phase-matched high-order harmonics."
Phys. Rev. Lett. 101, 253901 (2008). |
| (2) |
Chen, J., Suda, A., Takahashi, E. J., Nurhuda, M., and Midorikawa, K.:
"Compression of intense ultrashort laser pulse in a gas-filled planar waveguide."
Opt. Lett. 33, 2992 (2008). |
| (3) |
Kanai, T., Suda, A., Bohman, S., Kaku, M., Yamaguchi, S., and Midorikawa, K.:
"Pointing stabilization of a high-repetition-rate high-power femtosecond laser for intense few-cycle pulse generation."
Appl. Phys. Lett. 92, 061106 (2008). |
| (4) |
Isobe, K., Suda, A., Tanaka, M., Kannari, F., Kawano, H., Mizuno, H., Miyawaki, A., and Midorikawa, K.:
"Fourier-transform spectroscopy combined with a 5-fs broadband pulse for multispectral nonlinear spectroscopy."
Phys. Rev. A 77, 06382 (2008). |
| (5) |
Hanada, Y., Sugioka, K., Kawano, H., Ishikawa, I. S., Miyawaki, A., and Midorikawa, K.:
"Nano-aquarium for dynamic observation of living cells fabricated by femtosecond laser direct writing of photostructurable glass."
Biomedical Microdivice 10, pp. 403-410 (2008). |
| (6) |
Kanai, T., Takahashi, E. J., Nabekawa, Y., and Midorikawa, K.:
"Destructive interference during high harmonic generation in mixed gases."
Phys. Rev. Lett. 98,153904 (2007). |
| (7) |
Nagata, Y., Furusawa, K., Nabekawa, Y., and Midorikawa, K.:
"Single-shot spatial-coherence measurement of 13 nm high-order harmonic beam by a Young's souble-slit measuremt."
Opt. Lett. 32, 722-724 (2007). |
| (8) |
Sun, H., He, F., Zhou, Z., Cheng, Y., Xu, Z., Sugioka, K., and Midorikawa, K.:
"Fabrication of microfluidic optical waveguides on glass chips with femtosecond laser pulses."
Opt. Lett. 32, 1536-1538 (2007). |
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Cief Scientist
Katsumi MIDORIKAWA
(D.Eng.)
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