用旋转多普勒方法解析矢量涡旋光的偏振特征

doi:10.3969/j.issn.1007-5461.2022.02.008

量子电子学报 ›› 2022, Vol. 39 ›› Issue (2): 286-292.doi: 10.3969/j.issn.1007-5461.2022.02.008

• "轨道角动量：从经典光学到量子信息”专辑 II • 上一篇

用旋转多普勒方法解析矢量涡旋光的偏振特征

贾俊亮1,2,3, 张笑儒2, 赵子丹2, 张沛1,2,3∗

( 1 西安交通大学国家级物理实验教学示范中心, 陕西西安710049; 2 西安交通大学物质非平衡合成与调控教育部重点实验室, 陕西西安710049; 3 西安交通大学陕西省量子信息与光电量子器件重点实验室, 陕西西安710049 )

收稿日期:2021-10-06 修回日期:2021-11-30 出版日期:2022-03-28 发布日期:2022-03-28
通讯作者: E-mail: zhangpei@mail.ustc.edu.cn E-mail:E-mail: zhangpei@mail.ustc.edu.cn
作者简介:贾俊亮( 1992 - ), 山东人, 博士生, 主要从事量子光学和光学器件方面的研究。E-mail: shengzhan150@126.com
基金资助:
Supported by Key Program and Major Research Plan of National Natural Science Foundation of China (国家自然科学基金重点项目和重大研究计划, 11534008, 11804271, 91736104)

Recognition of polarization rotation in vector vortex beam enabled by rotational Doppler effect

JIA Junliang1,2,3, ZHANG Xiaoru2, ZHAO Zidan2, ZHANG Pei1,2,3∗

( 1 National Demonstration Center for Experimental College Physics Education, Xi’an Jiaotong University, Xi’an 710049, China; 2 MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China; 3 Shaanxi Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, Xi’an Jiaotong University, Xi’an 710049, China )

Received:2021-10-06 Revised:2021-11-30 Published:2022-03-28 Online:2022-03-28

摘要/Abstract

摘要： 矢量涡旋光在光学微操控和光通信领域均具有独特优势。旋转多普勒效应常应用于涡旋光拓扑荷的研究, 分析矢量涡旋光的旋转多普勒效应可以有效导出其丰富的偏振性质。提出了一种基于旋转多普勒效应分辨矢量涡旋光偏振旋转方向的方法, 对应于矢量涡旋光符号的识别。在所提出方法中, 矢量光经过旋转物体散射, 散射光由于多普勒效应, 各组分之间产生强度随时间周期性变化的拍频信号。拍频信号变化函数的相位取决于矢量涡旋在高阶庞加莱球上的代表点的赤道角, 相位变化率取决于涡旋光拓扑荷。本工作提出测量理论并通过实验验证了涡旋方向相反的两种矢量光的拍频信号, 为矢量涡旋光拓扑荷的符号测量提供了一种新的可行方法。

关键词: 光通信, 矢量涡旋光, 高阶庞加莱球, 旋转多普勒效应, 矢量涡旋拓扑荷

Abstract: Vectorial vortex beam possesses unique advantages in the fields of micro optical manipulation and optical communication. Rotational Doppler effect is usually applied in the researches of topological charges of optical vortex, and analysis of rotational Doppler effect of vectorial vortex beam is meaningful to deduce properties of polarization. Here a method to discriminate the direction of rotation of cylindrical vector beams is proposed based on rotational Doppler effect. In the method, the scattered light of an incident vectorial vortex beam carries beating signal whose intensity changes periodically with time due to Doppler frequency shift. The phase of the beating signal variation function depends on equator angle
of vectorial vortex on high-order Poincar´e sphere and the slope of the function depends on topological
charge of optical vortex. The measurement theory of beating signals of two vectorial vortex beams with
opposite handnesses are proposed and experimentally verified, which provides a new effective method to
measure the signs of topological charges of cylindrical vector beams.

Key words: optical communication, vector vortex beam, higher-order Poincar′e sphere, rotational Doppler effect, topological charges of vector vortex

中图分类号:

O431.2

贾俊亮, 张笑儒, 赵子丹, 张沛, ∗. 用旋转多普勒方法解析矢量涡旋光的偏振特征[J]. 量子电子学报, 2022, 39(2): 286-292.

JIA Junliang, ZHANG Xiaoru, ZHAO Zidan, ZHANG Pei, ∗. Recognition of polarization rotation in vector vortex beam enabled by rotational Doppler effect[J]. Chinese Journal of Quantum Electronics, 2022, 39(2): 286-292.

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用旋转多普勒方法解析矢量涡旋光的偏振特征

Recognition of polarization rotation in vector vortex beam enabled by rotational Doppler effect

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