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Proceedings Paper

The effect of phase object imaging in focusing of spatially phase-modulated laser beams on a weakly absorbing extended medium
Author(s): E. L. Bubis
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Paper Abstract

All-adaptive imaging of phase objects in focusing of spatially phase-modulated laser beams in an extended weakly absorbing liquid or a gas medium is realized. The required level of the system operation corresponds to the initial stage of thermal self-action of the illuminating laser beam. Imaging occurring in an extended weakly absorbing medium in a definite power range is a new effect in propagation of spatially phase-modulated laser beams. Imaging of objects in such schemes takes place in focusing of a spatially phase-modulated beam of an appropriate power directly on a real weakly absorbing atmosphere or an aqueous medium. Due to adaptivity of this nonlinear process in contrast to linear systems, imaging occurs under the conditions of heat flows, which leads to wandering of the laser beam waist as a whole in the Fourier plane.

Paper Details

Date Published: 8 February 2011
PDF: 6 pages
Proc. SPIE 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies, 79941I (8 February 2011); doi: 10.1117/12.887634
Show Author Affiliations
E. L. Bubis, Institute of Applied Physics (Russian Federation)


Published in SPIE Proceedings Vol. 7994:
LAT 2010: International Conference on Lasers, Applications, and Technologies
Vladislav Panchenko; Gérard Mourou; Aleksei M. Zheltikov, Editor(s)

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