Ultrafast optical science -controlling materials by manipulating light-
Research members： Kazuhiko Misawa PhD., Dr. Yuki Obara, Dr. Hironori Ito
Research fields： Physics, Applied physics, Basic chemistry
Departments： Department of Applied Physics, Institute of Engineering
Keywords： Ultrafast phenomena, Optical phase control, Coherent control, Raman microspectroscopy, Ultrafast X-ray laser, Ultrafast fiber laser
Web site：
Summary
We apply the technology to manipulate arbitrarily the amplitude, phase and polarization of the light to a wide range of research fields such as physics, chemistry, life sciences and medical engineering.We are promoting mainly the following four research projects.
① Generation and control of quantum systems with time-reversal symmetry breaking by the vector electric field waveform shaped pulses
By use of our proprietary technology called vector waveform shaping, we generate the light whose polarization state is arbitrarily changing with time.We aim to realize conversion between right-handed and left-handed materials in biological molecules using this optical method.
② Development of observation apparatus for intracellular dynamics of physiologically active molecules using molecular vibrational spectra
By use of proprietary technology called phase controlled coherent Raman spectroscopy, we develop a laser-scanning microscope for imaging the distribution of biologically relevant molecule.We aim to elucidate the action mechanism of drug molecules interacting with biological systems.
③ Development of time-resolved X-ray spectroscopy for solution chemistry
By using the X-ray free-electron laser SACLA, we aim to elucidate the interaction process between solute molecules and the solvent molecules in aqueous solution.
④ Real-time dynamical molecular structure control using the phase-programmed fiber laser
We develop a cutting-edge ultrafast ytterbium fiber laser.We aim to produce selectively target species in chemical reaction of molecules.
Reference articles and patents
1) "Ultraviolet Photochemical Reaction of [Fe(III)(C2O4)3]3- in Aqueous Solutions Studied by Femtosecond Time-Resolved X-ray Absorption Spectroscopy using an X-ray Free Electron Laser"
Y. Ogi, Y. Obara, T. Katayama, Y.-I. Suzuki, S. Y. Liu, N. C.-M. Bartlett, N. Kurahashi, S. Karashima, T. Togashi, Y. Inubushi, K. Ogawa, S. Owada, M. Rubesova, M. Yabashi, K. Misawa, P. Slavcek and T. Suzuki, Structural Dynamics, 2, 034901 (2015)
2) "65-fs Yb-doped fiber laser system with gain-narrowing compensation”
Yuhei Chiba, Hideyuki Takada, Kenji Torizuka, and Kazuhiko Misawa, Optics Express, 23, 5, 6809-6814 (2015)
3) "Femtosecond time-resolved X-ray absorption spectroscopy of liquid using a hard X-ray free electron laser in a dual-beam dispersive detection method"
Yuki Obara, Tetsuo Katayama, Yoshihiro Ogi, Takayuki Suzuki, Naoya Kurahashi, Shutaro Karashima, Yuhei Chiba, Yusuke Isokawa, Tadashi Togashi, Yuichi Inubushi, Makina Yabashi, Toshinori Suzuki, and Kazuhiko Misawa, Optics Express, 22, 1, 1105-1113 (2014)
4) "Terahertz polarization pulse shaping with arbitrary field control",
Masaaki Sato, Takuya Higuchi, Natsuki Kanda, Kuniaki Konishi, Kosuke Yoshioka, Takayuki Suzuki, Kazuhiko Misawa, and Makoto Kuwata-Gonokami, Nature Photonics 7, 724–731 (2013)
5) "Femtosecond x-ray absorption spectroscopy with hard x-ray free electron laser",
Tetsuo Katayama, Yuichi Inubushi, Yuki Obara, Takahiro Sato, Tadashi Togashi, Kensuke Tono, Takaki Hatsui, Takashi Kameshima, Atanu Bhattacharya, Yoshihiro Ogi, Naoya Kurahashi, Kazuhiko Misawa, Toshinori Suzuki, and Makina Yabashi, Appl. Phys. Lett. 103, 131105 (2013)
Contact
University Research Administration Center(URAC),
Tokyo University of Agriculture andTechnology
urac[at]ml.tuat.ac.jp
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