Intense Attosecond Pulse Research Team

Team Leader

Katsumi Midorikawa

  • D.Eng.
  • Katsumi Midorikawa
  • Brief resume
    1983
    Ph.D., Electrical Engineering, Keio University
    1983
    Research Scientist, Laser Science Research Group, RIKEN
    1997
    Chief Scientist, Laser Technology Laboratory, RIKEN (-current)
    2005
    Head, Extreme Phonics Research Group, RIKEN
    2005
    Director, Terahertz Research Program, RIKEN
    2008
    Director, Extreme Photonics Department, RIKEN (-current)
    2008
    Group Head, Extreme Photonics Research Group, RIKEN (-current)

Outline

Intense Attosecond Pulse Research Team

Nonlinear optical processes in the XUV region are of paramount importance not only in the field of quantum electronics but also in ultrafast optics. From the viewpoint of quantum electronics, new features of the interaction between intense XUV photons and matter are expected to be revealed through observation of those nonlinear phenomena. On the other hand, those nonlinear processes in the XUV region are indispensable for the progress of attosecond science, including attosecond atomic/molecular physics and chemistry, because they are very useful for investigating ultrafast phenomena directly in the attosecond time scale. Using high-harmonic generation by intense femtosecond laser technology, we are pursuing extreme optical science including XUV nonlinear optics and attosecond physics/chemistry.

Recent Research Topic

Measurement of Attosecond pulses by ATTO-correlator
Fig. 1: Measurement of Attosecond pulses by “ATTO-correlator”

Selected Publications

  1. K. Midorikawa, High-order harmonic generation and attosecond science, Jpn. J. Appl. Phys. 2011, 50, 09001.
  2. T. Togashi, et al. Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti:sapphire laser, Opt. Exp. 2011, 19, 317.
  3. P. Lan, E. J. Takahashi, K. Midorikawa, Isolated-attosecond-pulse generation with infrared double optical gating, Phys. Rev. A 2011, 83, 063839.
  4. Q. B. Zhang, E. J. Takahashi, O. D. Muecke, P. X. Lu, K. Midorikawa, Dual-chirped optical parametric amplification for generating few hundred mJ infrared pulses, Opt. Exp. 2011, 19, 7190.
  5. E. J. Takahashi, P. Lan, O. D. Mücke, Y. Nabekawa, K. Midorikawa, Infrared t-wo-color multicycle laser field synthesis for generating intense attosecond pulse, Phys. Rev. Lett. 2010, 104, 233901.
  6. E. J. Takahashi, T. Kanai, K. Midorikawa, High-order harmonic generation by an ultrafast infrared pulse: Efficient generation of a coherent “water window” x-ray, Appl. Phys. B 2010, 100, 29.
  7. Y. Nabekawa, et al. Multi-terawatt laser system generating 12-fs pulses at 100 Hz repetition rate, Appl. Phys. B 2010, 101, 523.
  8. Y. Furukawa, et al. Nonlinear Fourier-transform spectroscopy of D2 using high-order harmonic radiation, Phys. Rev. A 2010, 82, 013421.
  9. A. Amani Eilanlou, et al. Frequency modulation of high harmonic fields with synthesis of two-color laser fields, Opt. Exp. 2010, 18, 24619.
  10. Y. Nabekawa, T. Shimizu, Y. Furukawa, E. J. Takahashi, K. Midorikawa, Interferometry of attosecond pulse train in the extreme ultraviolet wavelength region, Phys. Rev. Lett. 2009, 102, 213904.

Core Members

Principal Investigator add delete
Katsumi Midorikawa Team Leader (Group Director, Extreme Photonics Research Group)    
Staff Scientist add delete
Koji Ishibashi  (Chief Scientist, Advanced Device Laboratory)    
Hitoshi Ohmori  (Chief Scientist, Materials Fabrication Laboratory)    
Hideki Hirayama  (Team Leader, Terahertz Quantum Device Team)    
Koji Sugioka Senior Research Scientist (Senior Research Scientist, Laser Technology Laboratory)    
Tohru Kobayashi Senior Research Scientist (Senior Research Scientist, Laser Technology Laboratory)    
Yutaka Nagata Senior Research Scientist (Senior Research Scientist, Laser Technology Laboratory)    
Kazutoshi Katahira Senior Research Scientist (Senior Research Scientist, Materials Fabrication Laboratory)    
Yasuo Nabekawa Senior Research Scientist 　  
Eiji Takahashi Senior Research Scientist 　  
Tsuneto Kanai Research Scientist (Research Scientist, Atomic, Molecular & Optical Physics Laboratory)    
Yusuke Furukawa ASI Research Scientist 　  
Postdoctoral Fellow add delete
Student Trainee add delete
Technical Assistant add delete
Administrative Assistant add delete
Visiting Research Staff add delete
Other Staff add delete

( ) indicates primary affiliation in RIKEN.

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