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Proceedings Paper

First observation of laser-triggered lightning
Author(s): Tatsuhiko Yamanaka; Shigeaki Uchida; Yoshinori Shimada; Hirohiko Yasuda; Shinji Motokoshi; Kouji Tsubakimoto; Zen-ichiro Kawasaki; Yuji Ishikubo; Mikio Adachi; Chiyoe Yamanaka
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Paper Abstract

Laboratory and field experiments for laser triggered lightning were performed in order to induce so called triggered lightning, in which an electric leader initiates from tall objects on the ground to thunderclouds, using a plasma channel produced by CO2 lasers and Nd lasers. Significant milestone was achieved in technological developments and verification of a scientific feasibility of the techniques such as determination of laser trigger timing which lead to laser triggered natural lightning. In the laboratory experiments technologies to produced long plasma channels and characteristics of discharge process induced by plasma channels were extensively investigated. In the field experiments developed are an automatic laser trigger system using an RF burst emission by a preliminary breakdown, methods to measure lightning path, thundercloud movement and field strength, and to make a continuous plasma channel at the top of the lightning tower which acts effectively for leader initiation.

Paper Details

Date Published: 14 September 1998
PDF: 8 pages
Proc. SPIE 3343, High-Power Laser Ablation, (14 September 1998); doi: 10.1117/12.321551
Show Author Affiliations
Tatsuhiko Yamanaka, Osaka Univ. (Japan)
Shigeaki Uchida, Institute for Laser Technology (Japan)
Yoshinori Shimada, Institute for Laser Technology (Japan)
Hirohiko Yasuda, Kansai Electric Power Co., Inc. (Japan)
Shinji Motokoshi, Institute for Laser Technology (Japan)
Kouji Tsubakimoto, Osaka Univ. (Japan)
Zen-ichiro Kawasaki, Osaka Univ. (Japan)
Yuji Ishikubo, Kansai Electric Power Co., Inc. (Japan)
Mikio Adachi, Kansai Electric Power Co., Inc. (Japan)
Chiyoe Yamanaka, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 3343:
High-Power Laser Ablation
Claude R. Phipps, Editor(s)

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