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Proceedings Paper

Laser beam self-focusing on scatters due to Kerr nonlinearity of air
Author(s): Valerii V. Vorob'ev
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Paper Abstract

For description of adaptive systems for atmospheric distortions compensation a common assumption is that intensity of radiation is scattered from the target, small enough to affect the propagation of an incident wave. In this paper the mutual effects of the incident and backscattered radiation is considered. This consideration is made for that case when the target is a small mirror. Solutions of the equations of paraxial optics exist in a form of beams which collapse on scatterers for beam power P>=P(Omicron )3, where P(Omicron ) is threshold power the beam collapse in absence of a scatterer dimension tends to zero. The problem of physical realization of the self-focusing on the scatterer is discussed. By means of numerical simulation it is shown that for monotonously increasing beam power P the back scattering leads to self-focusing on small scatterers only if P>=P(Omicron ).

Paper Details

Date Published: 29 June 1994
PDF: 10 pages
Proc. SPIE 2222, Atmospheric Propagation and Remote Sensing III, (29 June 1994); doi: 10.1117/12.178026
Show Author Affiliations
Valerii V. Vorob'ev, Institute of Atmospheric Physics (Russia)

Published in SPIE Proceedings Vol. 2222:
Atmospheric Propagation and Remote Sensing III
Walter A. Flood; Walter B. Miller, Editor(s)

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