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  • Received: Oct. 16, 2019

    Accepted: Dec. 12, 2019

    Posted: Apr. 1, 2020

    Published Online: Apr. 15, 2020

    The Author Email: Shen Yun (shenyun@ncu.edu.cn), Deng Xiaohua (Dengxiaohua0@gmail.com)

    DOI: 10.3788/AOS202040.0713001

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    Yun Wang, Shaohua Zhang, Yun Shen, Xiaohua Deng, Xiaoqing Luo. Manipulation on Amplitude of Anomalous Refraction in Staggered Terahertz V-Shaped Metasurface[J]. Acta Optica Sinica, 2020, 40(7): 0713001

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Acta Optica Sinica, Vol. 40, Issue 7, 0713001 (2020)

Manipulation on Amplitude of Anomalous Refraction in Staggered Terahertz V-Shaped Metasurface

Wang Yun1, Zhang Shaohua1, Shen Yun2,3,**, Deng Xiaohua3,*, and Luo Xiaoqing4

Author Affiliations

  • 1School of Materials Science and Engineering, Nanchang University, Nanchang, Jiangxi 330031, China
  • 2Department of Physics, Nanchang University, Nanchang, Jiangxi 330031, China
  • 3Institute of Space Science and Technology, Nanchang University, Nanchang, Jiangxi 330031, China
  • 4Key Laboratory of Terahertz Solid-State Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China

Abstract

A staggered metasurface structure that consists of double-periodic supercells with eight different V-shaped antennas is proposed and its properties are studied theoretically and experimentally. The calculation shows that co-polarized transmission and cross-polarized anomalous refraction can be obtained when the transverse electric light is incident vertically. The phase difference of anomalous refraction can be changed and its amplitude can be regulated by adjusting the transverse misalignment distance between two periodic supercell units. The experimental results show that, when the 4.3 THz light is vertically incident on the samples with two supercells staggered by 0, 2, 4 and 6 V-shaped antenna unit cells, the anomalous refraction intensities are 3.6%, 1.7%, 0.7%, and 1.9% of the incident light intensity, respectively, which is consistent with the calculated results.

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