Shaping the beam profile of an elliptical Gaussian beam by an elliptical phase aperture

被引：4
|
作者：
Wen, Wei [1 ,2 ]
Wu, Gaofeng [2 ]
Song, Kehui [1 ]
Dong, Yiming [2 ,3 ]
机构：
[1] Huaihua Univ, Dept Phys & Informat Engn, Huaihua 418008, Peoples R China
[2] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China
[3] Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2013年 / 291卷
基金：
中国国家自然科学基金;
关键词：
Elliptical Gaussian beam; Propagation; Phase aperture; ASTIGMATIC OPTICAL-SYSTEM; FLAT-TOPPED PROFILES; TURBULENT ATMOSPHERE; LIGHT-BEAMS; SCINTILLATION INDEX; Z-SCAN; PROPAGATION; FIELD; INTENSITY; LENS;
D O I：
10.1016/j.optcom.2012.11.026
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Based on the generalized Collins integral formula, an analytical paraxial propagation formula for an elliptical Gaussian beam (EGB) passing through an astigmatic ABCD optical system with an elliptical phase aperture is derived by use of a tensor method. As an application example, we study the propagation properties of an EGB passing through an elliptical aperture in free space. It is found that the elliptical phase aperture can be used for shaping the beam profile of an EGB, which is useful in many applications, such as free space optical communication and material thermal processing. The elliptical phase aperture induced changes of the propagation factors of an EGB are also analyzed. (c) 2012 Elsevier B.V. All rights reserved.
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页码：31 / 37
页数：7
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