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Proceedings Paper

Fredholm series solution to the integral equations of thermal blooming
Author(s): S. Enguehard; Brian Hatfield; William A. Peterson
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Paper Abstract

From the solution for the linear theory of thermal blooming, the propagator is a 2 X 2 matrix that satisfies an integral equation of Fredholm type. We develop a generalized Fredholm series solution to this integral equation. Since the Kernel is a matrix, the usual determinants in the Fredholm series contain ordering ambiguities. We resolve all ordering ambiguities using the standard diagrammatic representation of the series. The Fredholm denominator is computed for the case of uncompensated and compensated propagation in a uniform atmosphere with uniform wind. When the Fredholm denominator vanishes, the propagator contains poles. In the compensated case, the denominator does develop zeros. The single mode phase compensation instability gains computed from the zeros agrees with results obtained from other methods.

Paper Details

Date Published: 1 May 1992
PDF: 8 pages
Proc. SPIE 1628, Intense Laser Beams, (1 May 1992); doi: 10.1117/12.58983
Show Author Affiliations
S. Enguehard, Applied Mathematical Physics Research, Inc. (United States)
Brian Hatfield, Applied Mathematical Physics Research, Inc. (United States)
William A. Peterson, U.S. Army Atmospheric Sciences Lab. (United States)

Published in SPIE Proceedings Vol. 1628:
Intense Laser Beams
Richard C. Wade; Peter B. Ulrich, Editor(s)

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