Changes in the states of polarization of random electromagnetic beams in atmospheric turbulence

被引:1
|
作者
Li, Jinhong [1 ]
Zhao, Keying [1 ]
Lai, Yunzhong [1 ]
机构
[1] Taiyuan Univ Sci & Technol, Dept Phys, Taiyuan 030024, Peoples R China
基金
中国国家自然科学基金;
关键词
non-Kolmogorov atmospheric turbulence; random electromagnetic beams; degree of polarization; orientation angle; degree of ellipticity; PROPAGATION; STATISTICS;
D O I
10.5277/oa170105
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Taking the random electromagnetic cosh-Gaussian beam as a typical example of random electromagnetic beams, the analytical expressions for the cross-spectral density matrix element of random electromagnetic cosh-Gaussian beams propagating through non-Kolmogorov atmospheric turbulence are derived, and used to study the changes in the states of polarization (degree of polarization, orientation angle and degree of ellipticity) of random electromagnetic cosh-Gaussian beams in non-Kolmogorov atmospheric turbulence. It is shown that the states of polarization of random electromagnetic cosh-Gaussian beams in non-Kolmogorov atmospheric turbulence are different from those in free space. The degree of polarization decreases, and the orientation angle and degree of ellipticity increase with increasing structure constant. The on-axis degree of polarization and the degree of ellipticity appear to have an oscillatory behavior and the orientation angle has a rapid transition for the larger cosh-part parameter of random electromagnetic cosh-Gaussian beams in atmospheric turbulence.
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页码:51 / 62
页数:12
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