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

被引：0
作者：
Chang S. [1 ]
Song Y. [1 ]
Dong Y. [1 ,2 ]
Dong K. [1 ]
机构：
[1] National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun
[2] School of Electronics and Information Engineering, Changchun University of Science and Technology, Changchun
来源：
Song, Yansong (songyansong2018@sohu.com) | 1600年 / Wroclaw University of Science and Technology卷 / 50期
关键词：
Atmospheric turbulence; Average intensity; Multi-Gaussian Schell-model source; Slanted path; Vortex beam;
D O I：
10.37190/OA200107
中图分类号：
学科分类号：
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 M propagating 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 α on the spreading properties of MGSMV beam in the far field can be ignored. © 2020 WrocÅ‚aw University of Science and Technology. All rights reserved.
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页码：83 / 94
页数：11
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