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Extreme Photonics Research Group
Katsumi MIDORIKAWA
Group Director
Katsumi MIDORIKAWA (D.Eng.)
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Research Areas

Opening up unexplored wavelength region of the light spectrum has been yearned as basic technology supporting promotion of scientific advance and industrial development. In Extreme Photonics Research Group, we further pursue the potential of novel optical technology being developed in RIKEN such as intense soft-x-ray attosecond pulse sources, near-field optical microscope, and live cell imaging. Using advantages of RIKEN's research complex covering physics, chemistry, engineering, biology and medical science, applications of these light sources are also pursued to explore new scientific fields. This program is also operated through close collaboration with Institute of Molecular Science and a network with several universities in Tokyo area.

Research Subject

  1. Intense soft-x-ray attosecond pulses
  2. Live cell molecular imaging
  3. Ultrafast manipulation of molecules
  4. Near-field nanophotonics
  5. Molecular reaction dynamics

Related links

  1. RIKEN Advanced Science Institute Website_Laboratories PageNew Window
  2. Individual Website Laboratory PageNew Window

RIKEN RESEARCH

August 20,2010
Lasers in a flash
Producing isolated laser pulses in just attoseconds made easier using a two-color laser field New Window
September 12,2008
Lasers pushing the limits
The dissociation of nitrogen molecules by a free-electron laser signals a departure for more extreme light-matter interactions New Window

List of Selected Publications

  1. Takahashi, E. J., Lan P., Mücke O. D., Nabekawa Y., and Midorikawa K.:
    "Infrared two-color multicycle laser field synthesis for generating an intense attosecond pulse"
    Phys. Rev. Lett. 104, 233901 (2010).
  2. Nabekawa, Y., Shimizu, T., Furukawa, Y., Takahashi, E. J., and Midorikawa, K.:
    "Interferometry of attosecond pulse train in the extreme ultraviolet wavelength region."
    Phys. Rev. Lett. 102, 213904 (2009).
  3. Nihonyanagi, S., Yamaguchi, S., and Tahara, T.:
    "Direct evidence for orientational flip-flop of water molecules at charged interfaces: a heterodyne-detected VSFG study."
    J .Chem. Phys. 130, 204704 (2009)
  4. SEN P., YAMAGUCHI S., and TAHARA T.:
    "Ultrafast dynamics of malachite green at the air/water interface studied by femtosecond time-resolved electronic sum frequency generation (TR-ESFG): an indicator for local viscosity"
    Faraday Discuss. 145, 411 (2010).
  5. Maeshima K., Iino .H, Hihara S., Funakoshi T., Watanabe A., Nishimura M., Nakatomi R., Yahata K., Imamoto F., Hashikawa T., Yokota H., and Imamoto N.:
    "Nuclear pore formation but not nuclear growth is governed by cyclin-dependent kinases (Cdks) during interphase"
    Nat. Struct. Mnol. Bio. 17, 1065 (2010).
  6. Maeda Y., Yumoto M., Saito N., Ogawa T., Kurokawa K., Nakano N., Yamashita M., and Wada S.:
    "Broadly Tunable UV-Blue Picosecond Pulsed Laser and Its Application for Biological Imaging"
    Opt. Rev. 17, 305 (2010).
  7. Furusawa K., Hayazawa N., and Kawata S.:
    "Two-beam multiplexed CARS based on a broadband oscillator"
    J. Raman Spectro. 41, 840 (2010).
  8. Tarun A., Hayazawa N., Yano T., and Kawata S.:
    "Tip heating-assisted Raman spectroscopy at elevated temperatures"
    J. Raman Spectro. (published online, DOI10.1002/jrs.2820).
  9. Liu S. Y., Ogi Y., Fuji T., Nishizawa K.,. Horio T., Mizuno T., Kohguchi H., Nagasono M., Togashi T., Tono K., Yabashi M., Senba Y., Ohashi H., Kimura H., Ishikawa T., and Suzuki T.:
    "Time-resolved photoelectron imaging using a femtosecond UV laser and a VUV free-electron laser"
    Physical Review A, 81, 031403 (2010).
  10. Tang Y., Suzuki Y., Horio T., and Suzuki T.:
    "Molecular frame image restoration and partial wave analysis of photoionization dynamics of NO by time-energy mapping of photoelectron angular distribution"
    Phys. Rev. Lett. 104, 073002 (2010)




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