Analytical vectorial structure of non-paraxial four-petal Gaussian beams in the far field

被引：3

作者：

Long, Xuewen ^{[1
,2
]}

Lu, Keqing ^{[1
]}

Zhang, Yuhong ^{[1
,2
]}

Guo, Jianbang ^{[1
,2
]}

Li, Kehao ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

OPTIK | 2011年 / 122卷 / 16期

基金：

中国国家自然科学基金;

关键词：

Four-petal Gaussian beam; Vectorial structure; Far field;

D O I：

10.1016/j.ijleo.2010.09.028

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The analytical vectorial structure of non-paraxial four-petal Gaussian beams (FPGBs) in the far field has been studied based on vector angular spectrum method and stationary phase method. In terms of analytical electromagnetic representations of the TE and TM terms, the energy flux distributions of the TE term, the TM term, and the whole beam are derived in the far field, respectively. According to our investigation, the FPGBs can evolve into a number of small petals in the far field. The number of the petals is determined by the order of input beam. The physical pictures of the FPGBs are well illustrated from the vectorial structure, which is beneficial to strengthen the understanding of vectorial properties of the FPGBs. (C) 2010 Elsevier GmbH. All rights reserved.

引用

页码：1448 / 1452

页数：5

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