1 February 2000 Mechanisms of nonstationary self-focusing during pulse IR laser radiation propagation in a gaseous medium
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Proceedings Volume 3885, High-Power Laser Ablation II; (2000) https://doi.org/10.1117/12.376952
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan
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.
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Alexander M. Starik, "Mechanisms of nonstationary self-focusing during pulse IR laser radiation propagation in a gaseous medium", Proc. SPIE 3885, High-Power Laser Ablation II, (1 February 2000); doi: 10.1117/12.376952; https://doi.org/10.1117/12.376952
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