Evolution of the partially coherent Generalized Flattened Hermite-Cosh-Gaussian beam through a turbulent atmosphere

被引：0
|
作者：
S. Chib
L. Dalil-Essakali
A. Belafhal
机构：
[1] Chouaïb Doukkali University,Laboratory LPNAMME, Laser Physics Group, Department of Physics, Faculty of Sciences
来源：
Optical and Quantum Electronics | 2020年 / 52卷
关键词：
Turbulent atmosphere; Partially coherent generalized flattened hermite cosh-gaussian beam; Huygens-fresnel diffraction integral; Rytov’s quadratic approximation;
D O I：
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学科分类号：
摘要：
The current paper investigates the impact of a turbulent atmosphere on the propagation of a partially coherent Generalized Flattened Hermite Cosh-Gaussian (GFHChG) beam. The evaluation of a theoretical expression of the average intensity distribution for the partially coherent GFHChG beam is based on the extended Huygens-Fresnel diffraction integral and the Rytov’s quadratic approximation. The results of some laser beams are deduced as special cases from the present work. The behavior of the studied beam which is propagating through a turbulent atmosphere is analyzed through numerical illustrations. Results indicate that the partially coherent GFHChG beam successively changes shape from a doughnut to a flattened then to a Gaussian profile during its propagation in a turbulent atmosphere.
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