Far-field properties of electromagnetic elliptical Gaussian vortex beams

被引：13
|
作者：
Luo, Yamei [1 ,2 ]
Lue, Baida [2 ]
机构：
[1] Luzhou Med Coll, Dept Biomed Engn, Luzhou 646000, Peoples R China
[2] Sichuan Univ, Inst Laser Phys & Chem, Chengdu 610064, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2010年 / 283卷 / 19期
基金：
中国国家自然科学基金;
关键词：
Electromagnetic elliptical Gaussian vortex beam; Edge dislocation; Energy flux distribution; ANALYTICAL VECTORIAL STRUCTURE; EDGE DISLOCATION INTERACTION; MAXWELLS EQUATIONS; OPTICAL VORTICES; WAVE; APPROXIMATION; PROPAGATION;
D O I：
10.1016/j.optcom.2010.05.053
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The explicit far-field expressions for the TE and TM terms and energy flux distributions of electromagnetic elliptical Gaussian vortex beams are derived and their far-field properties including the phase singularities and energy flux distributions of the TE and TM terms and whole beam are studied in detail. It is shown that there exist two edge dislocations. The number and position of edge dislocations and energy flux distributions are dependent on the amplitude ratio and waist width ratio of electromagnetic elliptical Gaussian vortex beams. The analytical results are illustrated numerically. (C )2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：3578 / 3584
页数：7
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