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Proceedings Paper

Observations of the intense soft x-ray emissions from ultrathin Au films irradiated with high contrast laser pulses
Author(s): Masahiko Ishino; Masataka Kado; Masaharu Nishikino; Kunio Shinohara; Satoshi Tamotsu; Keiko Yasuda; Noboru Hasegawa; Maki Kishimoto; Toshiyuki Ohba; Tetsuya Kawachi
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Paper Abstract

Observation of soft x-ray emissions from laser produced plasmas using ultra thin film targets has been carried out. Au ultra thin films deposited on silicon nitride membranes were irradiated with a high contrast Nd:glass laser pulses. The spectral properties of emitted soft x-rays were monitored with an x-ray spectrograph from the membrane side. The observed emission intensities had a clear dependence on the Au film thickness. The results suggest that most of the laser energy irradiated is absorbed by the Au films and few of the energy goes into the silicon nitride membranes, which means an efficient laser energy deposition to the ultra thin Au film target and a high energy conversion rate from laser to x-rays.

Paper Details

Date Published: 25 February 2010
PDF: 8 pages
Proc. SPIE 7589, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications X, 75891B (25 February 2010); doi: 10.1117/12.839945
Show Author Affiliations
Masahiko Ishino, Japan Atomic Energy Agency (Japan)
Masataka Kado, Japan Atomic Energy Agency (Japan)
Masaharu Nishikino, Japan Atomic Energy Agency (Japan)
Kunio Shinohara, Waseda Univ. (Japan)
Satoshi Tamotsu, Nara Women's Univ. (Japan)
Keiko Yasuda, Nara Women's Univ. (Japan)
Noboru Hasegawa, Japan Atomic Energy Agency (Japan)
Maki Kishimoto, Japan Atomic Energy Agency (Japan)
Toshiyuki Ohba, Japan Atomic Energy Agency (Japan)
Tetsuya Kawachi, Japan Atomic Energy Agency (Japan)


Published in SPIE Proceedings Vol. 7589:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications X
Alexander Heisterkamp; Joseph Neev; Stefan Nolte; Rick P. Trebino, Editor(s)

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