Attosecond Science Research Team

Team Leader

Katsumi Midorikawa

D.Eng.

Katsumi Midorikawa

Contact

Access map

wtakiko [at] riken.jp

Attosecond Science Research Team,
RIKEN Center for Advanced Photonics

2-1 Hirosawa, Wako, Saitama 351-0198 Japan

Related links

Outline

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.

Fields

Interdisciplinary Science and Engineering, Physics, Engineering

Keywords

Attosecond Science, Ultrafast Lasers, Strong Field Physics, Nonlinear Optics、Multiphoton Microscopy

Subjects

  1. Generation and measurement of attosecond pulses
  2. Attosecond dynamics in atoms and molecules
  3. XUV nonlinear optics
  4. Ultrashort intense laseers
  5. Multiphoton microscopy
High-energy three-color optical waveform synthesizer for generating GW isolated attosecond pulses

High-energy three-color optical waveform synthesizer for generating GW isolated attosecond pulses

Selected Publications

  1. Fu Y., Yuan B. H., Midorikawa K., Lan P., and Takahashi E. J., “Toward GW-scale isolated attosecond pulses far beyond carbon K-edge driven by mid-infrared waveform synthesizer,” App. Sci. 8, 2451 (2018).
  2. Nabekawa, Y., Furukawa, Y., Okino, T., Eilanlou, A. A., Takahashi, E. J., Yamanouchi, K., and Midorikawa, K.: "Sub-10-fs control of dissociation pathways in the hydrogen molecular ion with a few-pulse attosecond pulse train, Nat. Commun. 7, 12835 (2016).
  3. Okino, T., Furukawa, Y., Nabekawa, Y., Miyabe, S., Eilanlou, A. A., Takahashi, E. J., Yamanouchi, K., and Midorikawa, K.: "Direct observation of an attosecond electron wave packet in a nitrogen molecule," Science Advances 1, e1500356 (2015).
  4. Takahashi, E. J., Lan, P., Mücke, O. D., Nabekawa, Y., and Midorikawa, K.: “Attosecond nonlinear optics using gigawatt-scale isolated attosecond pulses,” Nat. Commun. 4, 2691 (2013).
  5. Takahashi, E. J., Kanai, T., Ishikawa, K. L., Nabekawa, Y., and Midorikawa, K.: “Coherent water window x-ray by phase-matched high-order harmonics”, Phys. Rev. Lett. 101, 253901 (2008).

Members

Katsumi MidorikawaTeam Leader
Tohru KobayashiSenior Research Scientist
Yutaka NagataSenior Research Scientist 
Yasuo NabekawaSenior Research Scientist
Eiji TakahashiSenior Research Scientist
Tomoya OkinoResearch Scientist
Keisuke IsobeResearch Scientist
Yuxi FuResearch Scientist
Takashige FujiwaraResearch Scientist
Yu-Chieh LinSpecial Postdoctoral Researcher
Bing XuePostdoctoral Researcher
Akihiro TanabashiEngineer
Tomohiro IshikawaJunior Research Associate
Kotaro NishimuraJunior Research Associate
Takiko WakabayashiTechnical Assistant