Effect of turbulent atmosphere on the on-axis average intensity of Pearcey–Gaussian beam

The propagation characteristics of the Pearcey–Gaussian（PG） beam in turbulent atmosphere are investigated in this paper.The Pearcey beam is a new kind of paraxial beam,based on the Pearcey function of catastrophe theory,which describes diffraction about a cusp caustic.By using the extended Huygens–F...

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Bibliographic Details
Published in:Chinese physics B 2016-06, Vol.25 (6), p.264-269
Main Author: F Boufalah L Dalil-Essakali H Nebdi A Belafhal
Format: Article
Language:English
Subjects:
Atmospheres
Beams (radiation)
catastrophe theory
Computational fluid dynamics
Cusps
Exact solutions
Mathematical analysis
Mathematical models
Pearcey-Gaussian beam
Rytov theory
Turbulence
turbulent atmosphere
传播特性
光轴
大气湍流
平均强度
湍流大气
突变理论
解析表达式
高斯光束
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Summary:The propagation characteristics of the Pearcey–Gaussian（PG） beam in turbulent atmosphere are investigated in this paper.The Pearcey beam is a new kind of paraxial beam,based on the Pearcey function of catastrophe theory,which describes diffraction about a cusp caustic.By using the extended Huygens–Fresnel integral formula in the paraxial approximation and the Rytov theory,an analytical expression of axial intensity for the considered beam family is derived.Some numerical results for PG beam propagating in atmospheric turbulence are given by studying the influences of some factors,including incident beam parameters and turbulence strengths.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/25/6/064208