Nonparaxial propagation of a rectangular multi-Gaussian Schell-model beam

被引:8
作者
Huang, Kelin [1 ]
Wang, Xun [1 ]
Liu, Zhirong [1 ]
机构
[1] East China Jiaotong Univ, Dept Appl Phys, Nanchang 330013, Peoples R China
基金
美国国家科学基金会;
关键词
Diffraction theory; Propagation; Coherence; Polarization; ATMOSPHERIC-TURBULENCE; FAR FIELDS; LASER; COHERENCE; LIGHT;
D O I
10.1016/j.optcom.2015.07.037
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
According to the vectorial Rayleigh-Sommerfeld diffraction integral formulas, analytical expressions for the elements of 3 x 3 cross-spectral density matrix of polarized Rectangular Multi-Gaussian Schell-Model (RMGSM) beam's nonparaxial propagation in free space are derived, and the paraxial analytical expression has also been presented as a special case of nonparaxial propagation. Its statistical properties, including the distributions of spectral density, spectral degree of coherence, and spectral degree of polarization of nonparaxial RMGSM beam are numerically demonstrated. Results reveal that the statistical properties of RMGSM beam's nonparaxial propagation in free space are closely related to the initial beam's transverse width sigma and correlation widths delta(x) and delta(y). These characteristics of RMGSM beam might be useful in optical material surface processing, imaging, and free space optical communication. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:25 / 33
页数:9
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