中国物理B ›› 2016, Vol. 25 ›› Issue (7): 74201-074201.doi: 10.1088/1674-1056/25/7/074201

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

A method for generating double-ring-shaped vector beams

Huan Chen(陈欢), Xiao-Hui Ling(凌晓辉), Zhi-Hong Chen(陈知红), Qian-Guang Li(李钱光), Hao Lv(吕昊), Hua-Qing Yu(余华清), Xu-Nong Yi(易煦农)   

  1. 1 College of Physics and Electronic Information Engineering, Hubei Engineering University, Xiaogan 432000, China;
    2 Department of Physics and Electronic Information Science, Hengyang Normal University, Hengyang 421002, China
  • 收稿日期:2015-11-30 修回日期:2016-02-01 出版日期:2016-07-05 发布日期:2016-07-05
  • 通讯作者: Xu-Nong Yi E-mail:xnyi@szu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 11547017), the Hubei Engineering University Research Foundation, China (Grant No. z2014001), and the Natural Science Foundation of Hubei Province, China (Grant No. 2014CFB578).

A method for generating double-ring-shaped vector beams

Huan Chen(陈欢)1, Xiao-Hui Ling(凌晓辉)2, Zhi-Hong Chen(陈知红)1, Qian-Guang Li(李钱光)1, Hao Lv(吕昊)1, Hua-Qing Yu(余华清)1, Xu-Nong Yi(易煦农)1   

  1. 1 College of Physics and Electronic Information Engineering, Hubei Engineering University, Xiaogan 432000, China;
    2 Department of Physics and Electronic Information Science, Hengyang Normal University, Hengyang 421002, China
  • Received:2015-11-30 Revised:2016-02-01 Online:2016-07-05 Published:2016-07-05
  • Contact: Xu-Nong Yi E-mail:xnyi@szu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 11547017), the Hubei Engineering University Research Foundation, China (Grant No. z2014001), and the Natural Science Foundation of Hubei Province, China (Grant No. 2014CFB578).

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摘要：

We propose a method for generating double-ring-shaped vector beams. A step phase introduced by a spatial light modulator (SLM) first makes the incident laser beam have a nodal cycle. This phase is dynamic in nature because it depends on the optical length. Then a Pancharatnam-Berry phase (PBP) optical element is used to manipulate the local polarization of the optical field by modulating the geometric phase. The experimental results show that this scheme can effectively create double-ring-shaped vector beams. It provides much greater flexibility to manipulate the phase and polarization by simultaneously modulating the dynamic and the geometric phases.

关键词: vector beam, Pancharatnam-Berry phase element, geometric phase

Abstract:

We propose a method for generating double-ring-shaped vector beams. A step phase introduced by a spatial light modulator (SLM) first makes the incident laser beam have a nodal cycle. This phase is dynamic in nature because it depends on the optical length. Then a Pancharatnam-Berry phase (PBP) optical element is used to manipulate the local polarization of the optical field by modulating the geometric phase. The experimental results show that this scheme can effectively create double-ring-shaped vector beams. It provides much greater flexibility to manipulate the phase and polarization by simultaneously modulating the dynamic and the geometric phases.

Key words: vector beam, Pancharatnam-Berry phase element, geometric phase

中图分类号:  (Wave optics)

  • 42.25.-p
41.20.Jb (Electromagnetic wave propagation; radiowave propagation) 42.79.-e (Optical elements, devices, and systems)