Paper
19 November 1999 Basic regularities in the development of optical breakdown in air in a mode of high electronic heat conductivity
Sergei A. Shishigin, V. I. Kokhanov
Author Affiliations +
Proceedings Volume 3983, Sixth International Symposium on Atmospheric and Ocean Optics; (1999) https://doi.org/10.1117/12.370498
Event: Sixth International Symposium on Atmospheric and Ocean Optics, 1999, Tomsk, Russian Federation
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.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sergei A. Shishigin and V. I. Kokhanov "Basic regularities in the development of optical breakdown in air in a mode of high electronic heat conductivity", Proc. SPIE 3983, Sixth International Symposium on Atmospheric and Ocean Optics, (19 November 1999); https://doi.org/10.1117/12.370498
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KEYWORDS
Luminescence

Carbon dioxide lasers

Pulsed laser operation

Particles

Plasma

Carbon dioxide

Electrons

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