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Proceedings Paper

Propagation of "exotic" laser beams in conditions of atmospheric turbulence and thermal blooming effects
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Paper Abstract

Analysis and numerical modeling of "exotic" laser beam propagation through inhomogeneous atmospheric media is performed. The exotic beam is synthesized by introducing an additional periodical dynamically changing phase modulation to a conventional outgoing beam base. The propagation media model includes a set of thin phase distorting layers corresponding to atmospheric turbulence-induced distortions and non-stationary nonlinear layers describing the thermal blooming effects that accompany high-energy laser beam propagation in a moving propagation medium. The exotic beam structure is optimized to have maximum energy inside the diffraction-limited size area on the target plane. Compared with propagation of conventional laser beams, the exotic beam exhibits better beam quality metrics on the target plane such as maximum intensity, centroid intensity, and energy in the vicinity of the maximum beam intensity and the centroid.

Paper Details

Date Published: 18 October 2004
PDF: 9 pages
Proc. SPIE 5552, Target-in-the-Loop: Atmospheric Tracking, Imaging, and Compensation, (18 October 2004); doi: 10.1117/12.560452
Show Author Affiliations
Miao Yu, Univ. of Maryland/College Park (United States)
Mikhail A. Vorontsov, Univ. of Maryland/College Park (United States)
Army Research Lab. (United States)

Published in SPIE Proceedings Vol. 5552:
Target-in-the-Loop: Atmospheric Tracking, Imaging, and Compensation
Michael T. Valley; Mikhail A. Vorontsov, Editor(s)

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