极化(电化学)
实现(概率)
相位调制
几何相位
物理
拓扑量子数
拓扑(电路)
调制(音乐)
分类
相(物质)
光学
量子力学
计算机科学
工程类
数学
电气工程
统计
化学
物理化学
声学
情报检索
作者
Shuiqin Zheng,Ying Li,Qing Lin,Xuanke Zeng,Guoliang Zheng,Yi Cai,Zhenkuan Chen,Shixiang Xu,Dianyuan Fan
出处
期刊:Photonics Research
[The Optical Society]
日期:2018-04-18
卷期号:6 (5): 385-385
被引量:30
摘要
This paper reports the experimental realization of efficiently sorting vector beams by polarization topological charge (PTC). The PTC of a vector beam can be defined as the repetition number of polarization state change along the azimuthal axis, while its sign stands for the rotating direction of the polarization. Here, a couple of liquid crystal Pancharatnam–Berry optical elements (PBOEs) have been used to introduce conjugated spatial phase modulations for two orthogonal circular polarization states. Applying these PBOEs in a 4-f optical system, our experiments show the setup can work for PTC sorting with a separation efficiency of more than 58%. This work provides an effective way to decode information from different PTCs, which may be interesting in many fields, especially in optical communication.
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