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Proceedings Paper

Development of a CPA Nd:glass/Ti sapphire laser system for generation of coherent x-ray laser radiation
Author(s): Masataka Kado; Akira Nagashima; Keisuke Nagashima; Tetsuya Kawachi; Noboru Hasegawa; Momoko Tanaka; T. Hosokai; Kouta Sukegawa; A. Sasaki; Yoshiaki Kato
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Paper 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.

Paper Details

Date Published: 21 October 1999
PDF: 7 pages
Proc. SPIE 3776, Soft X-Ray Lasers and Applications III, (21 October 1999); doi: 10.1117/12.366674
Show Author Affiliations
Masataka Kado, Japan Atomic Energy Research Institute (Japan)
Akira Nagashima, Japan Atomic Energy Research Institute (Japan)
Keisuke Nagashima, Japan Atomic Energy Research Institute (Japan)
Tetsuya Kawachi, Japan Atomic Energy Research Institute (Japan)
Noboru Hasegawa, Japan Atomic Energy Research Institute (Japan)
Momoko Tanaka, Japan Atomic Energy Research Institute (Japan)
T. Hosokai, Japan Atomic Energy Research Institute (Japan)
Kouta Sukegawa, Japan Atomic Energy Research Institute (Japan)
A. Sasaki, Japan Atomic Energy Research Institute (Japan)
Yoshiaki Kato, Japan Atomic Energy Research Institute (Japan)


Published in SPIE Proceedings Vol. 3776:
Soft X-Ray Lasers and Applications III
Jorge J. G. Rocca; Luiz Barroca Da Silva, Editor(s)

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