RIKEN Center for Advanced Photonics Attosecond Science Research Team

Team Leader: Katsumi Midorikawa (D.Eng.)

Japanese Page

Research Summary

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.

Main Research Fields

Interdisciplinary Science & Engineering

Related Research Fields

Complex Systems
Engineering

Keywords

Attosecond Science
Ultrafast Lasers
Strong Field Physics
Laser Processing
Multiphoton Microscopy

Selected Publications

1.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).
2.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).
3.Fu, Y., Takahashi, E. J., and Midorikawa, K.:
"High-energy infrared femtosecond pulses generated by dual-chirped optical parametric amplification,"
Opt. Lett. 40, 5082-5085 (2015).
4.Takahashi, E. J., Fu, Y., and Midorikawa, K.:
"Carrier-envelop phase stabilization of a 16 TW, 10 Hz Ti:sapphire laser,"
Opt. Lett. 40, 4835 (2015).
5.Nabekawa, Y., Furukawa, Y., Okino, T., Eilanlou, A. A., Takahashi, E. J., Yamanouchi, K., and Midorikawa, K.:
"Settling time of a vibrational wavepacket in ionization,"
Nat. Commun. 6, 8197 (2015).
6.Takahashi, E. J., Lan, P. F., Mucke, O. D., Nabekawa, Y., and Midorikawa, K.:
"Nonlinear Attoseocnd Metrology by Intense Isolated Attoseocond Pulses,"
IEEE Selc. Topics in Quantum Electron. 21, 8800112 (2015).
7.Takahashi, E. J., Lan, P. F., Mucke, O. D., Nabekawa, Y., and Midorikawa, K.:
"Attosecond nonlinear optics using gigawatt-scale isolated attosecond pulses"
Nat. Commun. 4, 2691 (2013).
8.Locke, C. R., Kobayashi, T., Nakajima, T., and Midorikawa, K.:
"Application of an orthogonally polarized laser scheme for selective photoionization of palladium isotopes,"
Appl. Phys. B 122, 246 (2016).
9.Todda, K., Isobe, K., Namiki, K., Kawano, H., Miyawaki, A., and Midorikawa, K.:
"Temporal focusing microscopy using three-photon excitation fluorescence with a 92-fs Yb-fiber chirped pulse amplifier,"
Bio. Opt, Exp. 8, 2976 (2017).
10.Lötestedt, E. and Midorikawa, K.:
"Nuclear reaction induced by carrier-envelop-phase controlled proton recollision in a laser-driven molecule"
Phys. Rev. Lett. 112, 093001 (2014).