Propagation of Laguerre-Gaussian and Bessel-Gaussian Schell-model beams through paraxial optical systems in turbulent atmosphere

被引：55
|
作者：
Cang, Ji [1 ]
Xiu, Peng [1 ]
Liu, Xu [1 ]
机构：
[1] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2013年 / 54卷
关键词：
Laguerre-Gaussian Schell-model beam; Bessel-Gaussian Schell-model beam; Beam propagation; PARTIALLY COHERENT BEAMS; WAVE-PROPAGATION; DELTA-EXPANSION; SCINTILLATIONS; MEDIA; LAW;
D O I：
10.1016/j.optlastec.2013.05.002
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Based on the extended Huygens-Fresnel diffraction integral, the expressions for the average intensity and the effective size of Laguerre-Gaussian and Bessel-Gaussian Schell-model beams propagating through a paraxial ABCD optical system are obtained in the turbulent atmosphere. The influences of the source coherence and atmospheric turbulence on the propagation of Laguerre-Gaussian and Bessel-Gaussian Schell-model beams in the turbulent atmosphere are investigated in detail. It is found that the beam profile will eventually evolve into a Gaussian-like distribution through turbulence in contrast to ring-shaped far-field pattern in free space. The effective size of Laguerre-Gaussian and Bessel-Gaussian Schell-model beams with lower source coherence is less affected by turbulence. The parameter beta and index n of the sources have some effects on intensity distribution and beam spreading through atmospheric turbulence. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：35 / 41
页数：7
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