ISSP - The institute for Solid State Physics

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Kobayashi Group
Associate Professor
Yohei
KOBAYASHI
Research Associate
Akira
OZAWA
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We are studying advanced laser technologies and their applications. Both ultimate technologies of ultrashort pulse generations and ultra narrow-band laser generations were mixed, the optical frequency comb then was born ten years ago. It opened up a new research area such as carrier-envelope-phase dependent phenomena, attosecond physics, and precision spectroscopy by using a femtosecond light source. It also realized the high-repetition and high-intensity physics. It could create wide field of applications in the physics, metrology, medical science, and astronomy. We are developing an Yb-fiber laser-base optical frequency comb, XUV frequency comb, and high-power fiber chirped pulse amplifier system for these applications. The higher repetition rate of >4GHz laser oscillator is also studied.

Optical frequency comb based on an Yb-fiber laser
Xe plasma generated by multi-MHz laser system.

Research Subject

  1. Development and precise control of ultrashort pulse laser system
  2. High-rep rate, high-field physics
  3. Precision spectroscopy