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Proceedings Paper

Mechanisms of nonstationary self-focusing during pulse IR laser radiation propagation in a gaseous medium
Author(s): Alexander M. Starik
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Paper Abstract

On the basis of developed physical and mathematical model the mechanisms and tendencies of nonstationary focusing lens formation in the beam channel under propagating of a pulse laser radiation in resonance absorbing gaseous medium and in the atmosphere were studied. The dynamics of self- interactions and change in refractive index under propagating of CO2-, HF-laser radiation under resonance absorption by H2O molecules in moist atmosphere were considered. The new characteristics of change in refractive index of molecular gas due to excitation of rotation degree of freedom when spectral lines of absorbing transitions were overlapped (low troposphere) have been estimated.

Paper Details

Date Published: 1 February 2000
PDF: 12 pages
Proc. SPIE 3885, High-Power Laser Ablation II, (1 February 2000); doi: 10.1117/12.376952
Show Author Affiliations
Alexander M. Starik, Central Institute of Aviation Motors (Russia)

Published in SPIE Proceedings Vol. 3885:
High-Power Laser Ablation II
Claude R. Phipps; Masayuki Niino, Editor(s)

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