基于旋转超表面的相干自旋霍尔效应的可调光束

于洋; 仲帆; 江西; 褚琼琼; 祝世宁; 刘辉

doi:10.37188/CO.2021-0097

Volume 14 Issue 4

Jul. 2021

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Chinese Optics > 2021 > 14(4): 927-934.

YU Yang, ZHONG Fan, JIANG Xi, CHU Qiong-Qiong, ZHU Shi-Ning, LIU Hui. Dynamical optical beam produced in rotational metasurface based on coherent spin hall effect[J]. Chinese Optics, 2021, 14(4): 927-934. doi: 10.37188/CO.2021-0097

Citation:

YU Yang, ZHONG Fan, JIANG Xi, CHU Qiong-Qiong, ZHU Shi-Ning, LIU Hui. Dynamical optical beam produced in rotational metasurface based on coherent spin hall effect[J]. Chinese Optics, 2021, 14(4): 927-934. doi: 10.37188/CO.2021-0097

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Dynamical optical beam produced in rotational metasurface based on coherent spin hall effect

doi: 10.37188/CO.2021-0097

1.
National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
2.
School of Physics, Southeast University, Nanjing 211189, China

Funds: Supported by National Natural Science Foundation of China (No. 11690033, No. 61425018, No. 11621091, No. 12004072); Natural Science Foundation of Jiangsu Province (No. BK20200388); National Key Research and Development Program of China (No. 2017YFA0205700, No. 2017YFA0303702)

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Author Bio:
于　洋（1994—），女，黑龙江大庆人，硕士研究生，主要从事金属表面等离激元、自旋霍尔效应的研究。E-mail：543229546@qq.com

刘　辉（1974—），男，湖北武汉人，博士，教授，博士生导师，2003年于南京大学物理学院获得博士学位，主要从事光学超材料和集成光子芯片的研究。E-mail：liuhui@nju.edu.cn
Corresponding author: liuhui@nju.edu.cn
Received Date: 30 Apr 2021
Rev Recd Date: 06 May 2021

Available Online: 18 May 2021

Publish Date: 01 Jul 2021

Abstract

Abstract

Based on the spin Hall effect of photons, a metasurface can be used to generate and control light beams. In this paper, by means of one-dimensional chains of nanohole, a metasurface with rotational symmetry is designed. The Bessel beam can be produced by the spin Hall effect of Left-handed Circularly Polarized (LCP) and Right-handed Circularly Polarized (RCP) light simultaneously. Through the excitation of linearly polarized light, we can dynamically control the intensity and polarization of Bessel beam by controlling the coherent interference between two circularly polarized light excitation beams. At the same time, this method has the advantage of broadband modulation range.
- dynamically controllable bessel beam,
- metasurface,
- broadband modulation range

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References(25)

References

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