• 文献标题:   Triple-band cross-polarization converter based on an ultra-thin graphene-integrated metasurface
  • 文献类型:   Article
  • 作  者:   YA ZF, WANG YK, LU MJ, ZHANG CY
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF THE OPTICAL SOCIETY OF AMERICA BOPTICAL PHYSICS
  • ISSN:   0740-3224 EI 1520-8540
  • 通讯作者地址:   Jiangnan Univ
  • 被引频次:   10
  • DOI:   10.1364/JOSAB.36.000007
  • 出版年:   2019

▎ 摘  要

We propose a triple-band, tunable, and highly efficient reflected cross-polarization converter in the mid-infrared. The converter is composed of a metal ground plane, a dielectric layer, and double L-shaped graphene patch arrays. Triple bands (36.15, 48.95, and 52.20 THz) of cross-polarization conversion are achieved due to the superimposition of the two reflected components with a near 180 degrees phase difference. The tunable performance of our proposed converter can be realized by changing the Fermi energy and electron scattering time. Our idea is verified by finite element method simulation and paves a way to the design of multi-band polarization converters. (C) 2018 Optical Society of America