Spreading properties of a multi-Gaussian Schell-model vortex beam in slanted atmospheric turbulence

被引：7
作者：
Chang, Shuai [1 ]
Song, Yansong [1 ]
Dong, Yan [1 ,2 ]
Dong, Keyan [1 ]
机构：
[1] Changchun Univ Sci & Technol, Natl & Local Joint Engn Res Ctr Space Optoelect T, Changchun 130022, Peoples R China
[2] Changchun Univ Sci & Technol, Sch Elect & Informat Engn, Changchun 130022, Peoples R China
来源：
OPTICA APPLICATA | 2020年 / 50卷 / 01期
关键词：
average intensity; vortex beam; multi-Gaussian Schell-model source; atmospheric turbulence; slanted path; PROPAGATION PROPERTIES; POLARIZATION FLUCTUATIONS; FREE-SPACE; COHERENT; ARRAY;
D O I：
10.37190/oa200107
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The cross-spectral density function of a multi-Gaussian Schell-model vortex (MGSMV) beam propagating through slanted atmospheric turbulence was derived, and the influences of the MGSMV beam parameter and slanted atmospheric turbulence on the spreading properties of a MGSMV beam are studied. One can find that a MGSMV beam propagating in slanted atmospheric turbulence can evolve into the flat-topped beam, and a MGSMV beam with larger index N and topological charge Mpropagating in slanted atmospheric turbulence will lose the dark hollow center and evolve into the Gaussian beam more slowly than the MGSMV beam with smaller index N and topological charge M. It is also found that a MGSMV beam propagating in slanted atmospheric turbulence with larger strucutre parameter C will evolve into Gaussian beam faster, but the influences of zenith angle a on the spreading properties of MGSMV beam in the far field can be ignored.
引用
收藏
页码：83 / 94
页数：12
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