Polarization evolution of vector beams generated by q-plates

作     者：WEIXING SHU XIAOHUI LING XIQUAN FU YACHAO LIU YOUGANG KE HAILU LUO 

作者机构：College of Computer Science and Electronic Engineering Hunan University Laboratory for Spin Photonics School of Physics and Electronics Hunan University College of Physics and Electronic Engineering Hengyang Normal University 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2017年第5卷第2期

页      面：64-72页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China(NSFC)(10904036) Natural Science Foundation of Hunan Province(2015JJ3036) National High Technology Research and Development Program(2012AA01A301-01) Growth Program for Young Teachers of Hunan University China Scholarship Council(CSC)(3050) 

主　　题：Polarization evolution of vector beams generated by q plates 

摘      要：The polarization evolution of vector beams(VBs) generated by q-plates is investigated theoretically and *** analytical model is developed for the VB created by a general quarter-wave q-plate based on vector diffraction *** is found that the polarization distribution of VBs varies with position and the value *** particular,for the incidence of circular polarization,the exit vector vortex beam has polarization states that cover the whole surface of the Poincarésphere,thereby constituting a full Poincaré*** the incidence of linear polarization,the VB is not cylindrical but specularly symmetric,and exhibits an azimuthal spin *** results are in sharp contrast with those derived by the commonly used model,i.e.,regarding the incident light as a plane *** implementing q-plates with dielectric metasurfaces,further experiments validate the theoretical results.