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Laser Technology Laboratory
Katsumi MIDORIKAWA
Chief Scientist
Katsumi MIDORIKAWA (D.Eng.)
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Research Areas

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 and multiphoton microscopy are studied.

Research Subject

  1. Ultrashort high intensity lasers and their applications to strong field interaction
  2. Generation of ultrafast XUV radiation and its application to nonlinear optics in the soft x-ray region
  3. Generation and measurement of attosecond pulses
  4. Femtosecond laser processing
  5. Novel multiphoton microscopy with ultraboradband laser pulses

Related links

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

Press release

March 23, 2007
Laser Technology Laboratory of DRI succeeded in the world's first detection of the electron movement during a moment of 690 atoseconds by focusing an extremely short-pulsed laser on gaseous atoms and/or molecules.

RIKEN RESEARCH

October 24,2007
Laser-driven harmonics hit a high note
A new technique could improve development of high-efficiency light sources New Window
July 20, 2007
Boosting the harmonics of light-matter interaction
Researchers show that the interaction of a laser pulse with a mix of two gases creates high-energy radiation New Window

List of Selected Publications

  1. Midorikawa, K.:
    "High-order harmonic generation and attosecond science"
    Jpn. J. Appl. Phys., 50, 09001 (2011).
  2. Togashi, T., Takahashi, E. J., Midorikawa, K., Aoyama, M., Yamakawa, K., Sato, T., Iwasaski, A., Owada, S., Okino, T., Yamanouchi, K., Kannari, F., Yagishita, A., Nakano, H., Couprie, M. E., Fukai, K., Hatsui, T., Hara, T., Kamehsima, T., Kitamura, H., Kumagai, N., Matsubara, S., Nagasono, M., Ohashi, H., Ohshima, T., Otake, Y., Shintake, T., Tamasaku, K., Tanaka, H., Tanaka, T., Togawa, K., Tomizawa, H., Takahiro, T., Ybashi, M., and Ishikawa, T.:
    "Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti:sapphire laser"
    Opt. Exp., 19, 317-324 (2011).
  3. Lan, P., Takahashi, E. J., and Midorikawa, K.:
    "Isolated-attosecond-pulse generation with infrared double optical gating"
    Phys. Rev. A, 83, 063839 (2011).
  4. Zhang, Q. B., Takahashi, E. J., Muecke, O. D., Lu, P. X., and Midorikawa, K.:
    "Dual-chirped optical parametric amplification for generating few hundred mJ infrared pulses"
    Opt. Exp., 19, 7190-7212 (2011).
  5. Hanada, Y., Sugioka, K., Shihira-Ishikawa, I., Kawano, H., Miyawaki, A., and Midorikawa, K.:
    "3D micorfluidic chips with integrated functional microelements fabricated by a femtosecond laser for studying the gliding mechanism cyanobacteria"
    Lab on a Chip, 11, 2109-2115 (2011).
  6. Isobe, K., Suda, A., Tanaka, M., Hashimoto, H., Kannari, F., Kawano, H., Mizuno, H., Miyawaki, A., and Midorikawa, K.:
    "Nonlinear optical microscopy and spectroscopy employing octave spanning pulses"
    IEEE J. Selec. Topic. in Quantum Electron., 16, 767-780 (2010).
  7. Takahashi, E. J., Lan, P., Muecke, O. D., Nabekawa, Y., and Midorikawa, K.:
    "Infrared t-wo-color multicycle laser field synthesis for generating intense attosecond pulse"
    Phys. Rev. Lett., 104, 233901 (2010).
  8. Takahashi, E. J., Kanai, T., and Midorikawa, K.:
    "High-order harmonic generation by an ultrafast infrared pulse: Efficient generation of a coherent "water window" x-ray"
    Appl. Phys. B, 100, 29-41 (2010).
  9. Nabekawa, Y., Amani Eilanlou, A., Furukawa, Y., Ishikawa, K. L., Takahashi, H., and Midorikawa, K.:
    "Multi-terawatt laser system generating 12-fs pulses at 100 Hz repetition rate"
    Appl. Phys. B, 101, 523-534 (2010).
  10. Furukawa, Y., Nabekawa, Y., Okino, T., Saugout, S., Yamanouchi, K., and Midorikawa, K.:
    "Nonlinear Fourier-transform spectroscopy of D2 using high-order harmonic radiation"
    Phys. Rev. A, 82, 013421 (2010).

Members

Principal Investigator

Katsumi MIDORIKAWA
Chief Scientist

Staff Scientist

Koji SUGIOKA
Senior Research Scientist
Tohru KOBAYASHI
Senior Research Scientist
Yutaka NAGATA
Senior Research Scientist
Yasuo NABEKAWA
Senior Research Scientist
Eiji TAKAHASHI
Senior Research Scientist
Masuki KAWAMOTO
Senior Research Scientist
Yusuke FURUKAWA
ASI Research Scientist
Keisuke ISOBE
ASI Research Scientist

Postdoctoral Fellow

Natsuki KANDA
Special Postdoctoral Researcher
Jian XU
Foreign Postdoctoral Researcher
Yuxi FU
Foreign Postdoctoral Researcher
Erik Viktor LOETSTEDT
Foreign Postdoctoral Researcher
Pengfei LAN
Contract Researcher
Abdolreza AMANI EILANLOU
Postdoctoral Researcher
Kanaka Raju PANDIRI
Postdoctoral Researcher

Student Trainee

Sizhu WU
International Program Associate

Administrative Assistant

Takiko WAKABAYASHI
Technical Assistant