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Scintillation index of elliptical Gaussian beam in turbulent atmosphere
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论文类型：期刊论文
发表刊物：Opt. Lett
所属单位：2 Centre for Optical and Electromagnetic Research, East Building No. 5, Zijingang Campus, Zhejiang U
刊物所在地：美国
学科门类：工学
项目来源：自然科学基金
文献类型：J
卷号：32
期号：16
页面范围：2405-2407
关键字：无
DOI码：10.1364/OL.32.002405
发表时间：2007-09-16
教研室：无
摘要：A tensor method is used to formulate the on-axis scintillation index for an elliptical Gaussian beam (EGB; astigmatic Gaussian beam) propagating in a weak turbulent atmosphere. Variations of the on-axis scintillation of an EGB are studied. It is interesting to find that the scintillation index of an EGB can be smaller than that of a circular Gaussian beam in a weakly turbulent atmosphere under certain conditions and is closely related to the ratio of the beam waist size along the long axis to that along the short axis of the EGB, the wavelength, and the structure constant of the turbulent atmosphere.
备注：无