Highly efficient generation of arbitrary vector beams with tunable polarization, phase, and amplitude

作     者：SHENG LIU SHUXIA QI YI ZHANG PENG LI DONGJING WU LEI RAN JIANLIN ZHAO 

作者机构：MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology School of Science Northwestern Polytechnical University Xi'an 710129 China 

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

年 卷 期：2018年第6卷第4期

页      面：228-233页

核心收录：

学科分类：080901[工学-物理电子学] 080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：National Key Research and Development Program of China(2017YFA0303800) Joint Fund of the National Natural Science Foundation Committee of China Academy of Engineering Physics(CAEP)(U1630125) National Natural Science Foundation of China(NSFC)(11634010,61675168,11774289) 

主　　题：空间光调制器 光束 通讯技术 发展现状 

摘      要：We propose an efficient and robust method to generate tunable vector beams by employing a single phasetype spatial light modulator(SLM). With this method, a linearly polarized Gaussian beam can be converted into a vector beam with arbitrarily controllable polarization state, phase, and amplitude. The energy loss during the conversion is greatly reduced and depends mainly on the reflectivity of the SLM. We experimentally demonstrate that conversion efficiency of about 47% is achieved by using an SLM with reflectivity of 62%.Several typical vector beams, including cylindrical vector beams, vector beams on higher order Poincaré spheres,and arbitrary vector beams attached with phases and with tunable amplitude, are generated and verified experimentally. This method is also expected to create high-power vector beams and play important roles in optical fabrication and light trapping.