Volume 14 Issue 4
Jul.  2021
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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

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

doi: 10.37188/CO.2021-0097
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
  • 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.

     

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