Generation of double-ring-shaped cylindrical vector beams by modulating Pancharatnam-Berry phase

被引：8

作者：

Chen, Huan ^{[1
,3
]}

Ling, Xiaohui ^{[2
]}

Li, Qianguang ^{[1
]}

Lv, Hao ^{[1
]}

Yu, Huaqing ^{[1
]}

Yi, Xunong ^{[1
,3
]}

机构：

[1] Hubei Engn Univ, Coll Phys & Elect Informat Engn, Xiaogan 432000, Peoples R China

[2] Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421002, Peoples R China

[3] Hubei Engn Univ, Hubei Key Lab Qual Control Characterist Fruits &, Xiaogan 432000, Peoples R China

来源：

OPTIK | 2017年 / 134卷

基金：

中国国家自然科学基金;

关键词：

Vector beam; Pancharatnam-Berry phase; Jones matrix; RADIALLY POLARIZED BEAM; LASER MODES; Q-PLATE; LIGHT; METASURFACES; MANIPULATION; CRYSTAL; FIELD;

D O I：

10.1016/j.ijleo.2017.01.052

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work, we propose a method for generating double-ring-shaped cylindrical vector beams by modulating Pancharatnam-Berry phase (PBP). The theoretical analysis shows that the output field can be expressed as the coherent superposition of two circularly polarized Laguerre-Gaussian components with opposite polarization handness and opposite helical index when a linearly polarized fundamental Gaussian beam inputs the metasurface designed based on PBP. Such a superposition of Laguerre-Gaussian modes forms a double ring-shaped cylindrical vector beam. Additionally, the local polarization orientation can be manipulated by changing the polarization angle of the input field. Our experimental results agree well with the theoretical expectation. We believe that PBP provides an extra choice to manipulate the phase and polarization of optical field. (C) 2017 Elsevier GmbH. All rights reserved.

引用

页码：227 / 232

页数：6

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