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Proceedings Paper

Basic regularities in the development of optical breakdown in air in a mode of high electronic heat conductivity
Author(s): Sergei A. Shishigin; V. I. Kokhanov
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Paper Abstract

We present some results of experimental investigation into the formation of plasma formations at optical breakdown of air initiated with high-power radiation of a CO2 laser. Based on spectral and temporal characteristics as well as on photographic images of the plasma cells recorded we have shown that the mode of plasma cell evolution changes depending on the power density of incident radiation that varied from 106 W/cm2 to 5(DOT)109 W/cm2. At the power density exceeding the breakdown threshold by two orders of magnitude there occurs the mode of the plasma cell evolution different than the mode of light-induced detonation wave resulting in the changes in the spectral and temporal characteristics of the plasma cells as well as in their shape.

Paper Details

Date Published: 19 November 1999
PDF: 6 pages
Proc. SPIE 3983, Sixth International Symposium on Atmospheric and Ocean Optics, (19 November 1999); doi: 10.1117/12.370498
Show Author Affiliations
Sergei A. Shishigin, Institute of Atmospheric Optics (Russia)
V. I. Kokhanov, Institute of Atmospheric Optics (Russia)

Published in SPIE Proceedings Vol. 3983:
Sixth International Symposium on Atmospheric and Ocean Optics
Gennadii G. Matvienko; Vladimir P. Lukin, Editor(s)

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