Intense Attosecond Pulse Research Team
Team Leader
Katsumi MIDORIKAWA (D.Sci.)
Nonlinear optical process in the XUV region is of paramount importance not only in the field of quantum electronic but also in ultrafast optics. From the viewpoint of quantum electronics, new features of the interaction between intense XUV photons and matters are expected to be revealed through observation of those nonlinear phenomena. On the other hand, those nonlinear processes in the XUV region is indispensable for progress of attosecond science including attosecond atomic/molecular physics and chemistry, because it is very useful for investigating ultrafast phenomena directly in 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.
- Generation and measurement of attosecond pulses
- Attosecond dynamics in atoms and molecules
- XUV nonlinear optics
- Ultrafast imaging by intense soft x-ray radiation
- November 25, 2008
- Success in emitting a new X-ray with a wavelength in the region of the 'water window', which will enable visualization in situ of living organisms, promising the development of a bench-sized coherent soft X-ray generator suitable for an 'instant shot' measurement of mobile organs
- Midorikawa, K.:
"High-order harmonic generation and attosecond science"
Jpn. J. Appl. Phys., 50, 09001 (2011). - 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). - Lan, P., Takahashi, E. J., and Midorikawa, K.:
"Isolated-attosecond-pulse generation with infrared double optical gating"
Phys. Rev. A, 83, 063839 (2011). - 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). - 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). - 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). - 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). - 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). - Amani Eilanlou, A., Nabekawa, Y., Ishikawa, K. L., Takahashi, H., Takahashi, E. J., and Midorikawa, K.:
"Frequency modulation of high harmonic fields with synthesis of two-color laser fields"
Opt. Exp., 18, 24619-24631 (2010). - 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).
Principal Investigator
- Katsumi MIDORIKAWA
- Team Leader
Staff Scientist
- Koji ISHIBASHI
- Hitoshi OHMORI
- Hideki HIRAYAMA
- Koji SUGIOKA
- Senior Research Scientist
- Tohru KOBAYASHI
- Senior Research Scientist
- Yutaka NAGATA
- Senior Research Scientist
- Kazutoshi KATAHIRA
- Senior Research Scientist
- Yasuo NABEKAWA
- Senior Research Scientist
- Eiji TAKAHASHI
- Senior Research Scientist
- Tsuneto KANAI
- Research Scientist
- Yusuke FURUKAWA
- ASI Research Scientist
- Keisuke ISOBE
- ASI Research Scientist
Postdoctoral Fellow
- Dong WU
- Foreign Postdoctoral Researcher