文献类型：期刊文献

英文题名：Gyrator transform of phase-flipped Gaussian beams and conversion of an edge-dislocation into a vortex

作者：Zhu, Jie Zhu, Kaicheng Li, Xiaoli Su, Qin Tang, Huiqin

第一作者：朱洁

通信作者：Zhu, KC[1]

机构：[1]Guizhou Inst Technol, Coll Sci, Guiyang 550003, Guizhou, Peoples R China;[2]Cent S Univ, Sch Phys Sci & Technol, Changsha 410083, Hunan, Peoples R China

第一机构：贵州理工学院理学院

通信机构：corresponding author), Cent S Univ, Sch Phys Sci & Technol, Changsha 410083, Hunan, Peoples R China.

年份：2018

卷号：156

起止页码：684-688

外文期刊名：OPTIK

收录：;EI(收录号：20175004522032);Scopus(收录号：2-s2.0-85037347729);WOS:【SCI-EXPANDED(收录号:WOS:000424311500085)】；

基金：Projected supported by the foundation of Guizhou Institute of Technology.

语种：英文

外文关键词：Phase-flipped Gaussian beams; Gyrator transform; Dark hollow beam

摘要：Based on the Gyrator transform (GT) formula, the closed-form field expression of a phase flipped Gaussian beam (PFGB) passing through a GT system is presented. It is proved that PFGBs with edge dislocation can be converted into dark hollow vortex error-Gaussian beams with topological charge 1 through GT optical systems. With the help of numerical method, the influences of Fresnel number FN and GT transform angle a on intensity and phase distributions of the vortex beam are investigated. Moreover, the optimum relation between Fresnel number FN and the corresponding transform angle a for realizing a perfect dark hollow pattern is obtained. (C) 2017 Elsevier GmbH. All rights reserved.