Main > Chinese Journal of Lasers >  Volume 47 >  Issue 6 >  Page 0614002 > Article
  • Abstract
  • Abstract
  • View Summary
  • Figures (13)
  • Tables (2)
  • Equations (0)
  • References (28)
  • Get PDF(in Chinese)
  • Paper Information
  • Received: Dec. 2, 2019

    Accepted: Feb. 18, 2020

    Posted: Jun. 1, 2020

    Published Online: Jun. 3, 2020

    The Author Email: Wu Qiannan (qiannanwoo@nuc.edu.cn)

    DOI: 10.3788/CJL202047.0614002

  • Get Citation
  • Copy Citation Text

    Jianyang Wang, Qiannan Wu. Metamaterial Terahertz Broadband Reflector with Double-Layer Grid[J]. Chinese Journal of Lasers, 2020, 47(6): 0614002

    Download Citation

  • Category
  • Terahertz Technology
  • Share
Chinese Journal of Lasers, Vol. 47, Issue 6, 0614002 (2020)

Metamaterial Terahertz Broadband Reflector with Double-Layer Grid

Wang Jianyang1,2,3 and Wu Qiannan1,2,3,*

Author Affiliations

  • 1Department of Physics, School of Science, North University of China, Taiyuan, Shanxi 0 30051, China
  • 2Center for Microsystem Integration, North University of China, Taiyuan, Shanxi 0 30051, China
  • 3Academy for Advanced Interdisciplinary Research, North University of China, Taiyuan, Shanxi 0 30051, China

Abstract

In this paper, a metamaterial terahertz broadband reflector, which is composed of a middle layer of polyimide film sandwiched between upper and lower metal gratings, is proposed. This new design overcomes the incapability of existing reflectors to simultaneously optimize the reflectivity and reflection bandwidth. The reflection performance of the reflector was analyzed by the finite difference time domain method, and the number of metal layers, thickness of the polyimide film, length of the grating period, and grid width were optimized for achieving wide-band reflection and high reflectivity. Results show that this reflector has excellent reflection performance and large reflection bandwidth in the terahertz frequency band. In the 0-4.0-THz working band, the bandwidth with reflectivity above 0.98 can reach 2.04 THz. The proposed method provides a design scheme for high-performance reflectors for the development of terahertz broadband communication technology.

keywords

Please Enter Your Email: