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Proceedings Paper

Laser interactions in fluid materials: laser-induced cavitation in liquid nitrogen and the possibility of environmental gas decomposition by laser
Author(s): Kazuo Maeno; Hitoshi Sato; Christophe Prat; Seiichi Endo
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Paper Abstract

Studies on some laser interactions to fluid materials are presented. Firstly, pulsed-laser-induced cavitation bubble in liquid nitrogen is investigated by YAG laser irradiation. High speed schlieren photographs by Imacon-790 are taken to observe the laser-induced bubble dynamics. Bubble and solid wall interactions are also investigated. Based on the results obtained, a novel laser surface processing technology using the pulse-laser-induced cavitation bubbles is secondly proposed. Furthermore, discussing by the fundamental results of the experiment of laser-gas molecular absorption, the possibility of decomposition of environmental gases by CW CO2 laser irradiation is also studied.

Paper Details

Date Published: 22 December 1998
PDF: 10 pages
Proc. SPIE 3574, XII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (22 December 1998); doi: 10.1117/12.334417
Show Author Affiliations
Kazuo Maeno, Chiba Univ. (Japan)
Hitoshi Sato, National Aerospace Lab. (Japan)
Christophe Prat, Japan Society for the Promotion of Science and SOPRA (France)
Seiichi Endo, Maruso Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 3574:
XII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference
Anatoly S. Boreisho; Gennady A. Baranov, Editor(s)

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