Development of a CPA Nd:glass/Ti sapphire laser system for generation of coherent x-ray laser radiation

Masataka Kado; Akira Nagashima; Keisuke Nagashima; Tetsuya Kawachi; Noboru Hasegawa; Momoko Tanaka; T. Hosokai; Kouta Sukegawa; A. Sasaki; Yoshiaki Kato

doi:10.1117/12.366674

21 October 1999 Development of a CPA Nd:glass/Ti sapphire laser system for generation of coherent x-ray laser radiation

Masataka Kado, Akira Nagashima, Keisuke Nagashima, Tetsuya Kawachi, Noboru Hasegawa, Momoko Tanaka, T. Hosokai, Kouta Sukegawa, A. Sasaki, Yoshiaki Kato

Author Affiliations +

Proceedings Volume 3776, Soft X-Ray Lasers and Applications III; (1999) https://doi.org/10.1117/12.366674
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

An ultra-short pulse CPA laser system for x-ray laser driver has been developed with a combination of Ti:sapphire front end and Nd:glass rod amplifiers. This laser system has two beam outputs and each beam line produces 20J pre pulse and 20J main. This laser system is designed for x-ray laser pumping driver, especially for transient gain scheme. The new transient gain x-ray laser scheme with thin foil metal targets has been proposed. This scheme has higher laser energy efficiency and less x-ray laser refraction effect and makes possible to generate shorter x-ray wavelength with a compact table-top sized laser system. The electron temperatures of plasmas heated with a short pre pulse and short main pulse have been calculated with 1D hydrodynamic code and obtained electron temperature higher than 1 keV and 20 J laser energy. X-ray laser propagation is also calculated with gain guiding effect.

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Masataka Kado, Akira Nagashima, Keisuke Nagashima, Tetsuya Kawachi, Noboru Hasegawa, Momoko Tanaka, T. Hosokai, Kouta Sukegawa, A. Sasaki, and Yoshiaki Kato "Development of a CPA Nd:glass/Ti sapphire laser system for generation of coherent x-ray laser radiation", Proc. SPIE 3776, Soft X-Ray Lasers and Applications III, (21 October 1999); https://doi.org/10.1117/12.366674

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