Development of tabletop transient collisional excitation x-ray lasers

Masataka Kado; Tetsuya Kawachi; Noboru Hasegawa; Momoko Tanaka; Kouta Sukegawa; Keisuke Nagashima; Akira Nagashima; Yoshiaki Kato

doi:10.1117/12.375119

11 January 2000 Development of tabletop transient collisional excitation x-ray lasers

Masataka Kado, Tetsuya Kawachi, Noboru Hasegawa, Momoko Tanaka, Kouta Sukegawa, Keisuke Nagashima, Akira Nagashima, Yoshiaki Kato

Author Affiliations +

Proceedings Volume 3886, High-Power Lasers in Energy Engineering; (2000) https://doi.org/10.1117/12.375119
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

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 plasma 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 with 20J laser energy. X-ray laser propagation is also calculated with gain guiding effect.

Citation Download Citation

Masataka Kado, Tetsuya Kawachi, Noboru Hasegawa, Momoko Tanaka, Kouta Sukegawa, Keisuke Nagashima, Akira Nagashima, and Yoshiaki Kato "Development of tabletop transient collisional excitation x-ray lasers", Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); https://doi.org/10.1117/12.375119

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