Spectral shifts and spectral switches of elliptical Gaussian beam propagating through turbulent atmosphere

被引：2

作者：

Wang, Haiyan ^{[1
]}

Li, Xiangyin ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Dept Phys, Jiangsu 210094, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2009年 / 41卷 / 02期

关键词：

Elliptical Gaussian beam; Spectral shift and spectral switch; Turbulent atmosphere; SCHELL-MODEL BEAMS; FRACTIONAL FOURIER-TRANSFORM; PARTIALLY COHERENT-LIGHT; LASER-BEAMS; AVERAGE INTENSITY;

D O I：

10.1016/j.optlastec.2008.05.011

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Based on the extended Huygens-Fresnel principle, the spectrum of elliptical Gaussian beam (EGB) propagating through turbulent atmosphere can be derived analytically by tensor method. It can avoid time-consuming numerical integral that was commonly used in the previous study of spectral changes. Analytical results show that the on-axis normalized spectrum S(omega) of EGB propagating through turbulent atmosphere is different from the original spectrum S-0(omega) and there exist spectral shifts and spectral switches for EGB propagating through turbulent atmosphere. Besides, spectral shifts and spectral switches of EGB are closely related with the structure constant of the turbulent atmosphere, the beam parameters and the coordinate of observation point. Compared with the Gaussian beam, there are two spectral switches for EGB propagating through turbulent atmosphere. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：107 / 111

页数：5

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