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Proceedings Paper

Breakdown characteristics in atmosphere by TEA-CO2 laser
Author(s): Kiyoshi Yatsui; Katsumi Masugata; Takahiro Kuroda; Yoshihito Ohmomo; Go Imada; S. Satoh; Tatsumi Goto; Koichi Yasuoka; Tohru Tamagawa
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Paper Abstract

The breakdown characteristics of a short-distance discharge gap in an atmosphere by TEA- CO2 laser have been studied to control the lightning artificially. It is efficient to enhance the probability of electrical breakdown induced if the focal point is set behind the discharge gap axis or near the negative high-voltage electrode. The length of the optical-breakdown plasma channel is elongated by using the micro-particles diffused in an atmosphere. Using 3 micrometers -diam. aluminum particles, the optical-breakdown threshold is lowered to 15 MW/cm2 compared to 0.5 GW/cm2 in the absence of the micro-particles.

Paper Details

Date Published: 4 May 1993
PDF: 4 pages
Proc. SPIE 1810, 9th International Symposium on Gas Flow and Chemical Lasers, (4 May 1993); doi: 10.1117/12.144574
Show Author Affiliations
Kiyoshi Yatsui, Nagaoka Univ. of Technology (Japan)
Katsumi Masugata, Nagaoka Univ. of Technology (Japan)
Takahiro Kuroda, Nagaoka Univ. of Technology (Japan)
Yoshihito Ohmomo, Nagaoka Univ. of Technology (Japan)
Go Imada, Nagaoka Univ. of Technology (Japan)
S. Satoh, Toshiba Corp. (Japan)
Tatsumi Goto, Toshiba Corp. (Japan)
Koichi Yasuoka, Toshiba Corp. (Japan)
Tohru Tamagawa, Toshiba Corp. (Japan)

Published in SPIE Proceedings Vol. 1810:
9th International Symposium on Gas Flow and Chemical Lasers

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