Thermal distortion of the wavefront in a high-intensity laser system for inverse Compton x-ray generation

Hiroki Ishikawa; Shinji Ito; Akira Endo; Tatsuya Yanagida; Kenji Torizuka; Fumio Sakai; Masakazu Washio

doi:10.1117/12.478976

25 June 2003 Thermal distortion of wavefront in high-intensity-laser system for inverse Compton x-ray generation

Hiroki Ishikawa, Shinji Ito, Akira Endo, Tatsuya Yanagida, Kenji Torizuka, Fumio Sakai, Masakazu Washio

Proceedings Volume 4969, Laser Resonators and Beam Control VI; (2003) https://doi.org/10.1117/12.478976
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

Abstract

We have developed a stable 7 terawatt (TW) (168 mJ per pulse, 24 fs pulse duration) Ti: sapphire laser system operating at 50 Hz for a generation of femtosecond X-ray pulses by inverse Compton scattering. We corrected the wavefront distortion of these high intensity laser pulses with adaptive optics using a Shack-Hartmann type wavefront sensor and a deformable mirror. We have also started developing a compact all-solid-state Yb: Sr₅(PO₄)₃F (Yb: S-FAP) laser system to realize a practical X-ray pulse generation system. We measured thermal lensing induced in Yb: S-FAP crystal for design of a high-energy regenerative amplifier. In addition, we measured wavefront of the amplified pulses in the Yb: S-FAP regenerative amplifier with the wavefront sensor.

Citation Download Citation

Hiroki Ishikawa, Shinji Ito, Akira Endo, Tatsuya Yanagida, Kenji Torizuka, Fumio Sakai, and Masakazu Washio "Thermal distortion of wavefront in high-intensity-laser system for inverse Compton x-ray generation", Proc. SPIE 4969, Laser Resonators and Beam Control VI, (25 June 2003); https://doi.org/10.1117/12.478976

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