• 文献标题:   Wideband absorption in one dimensional photonic crystal with graphene-based hyperbolic metamaterials
  • 文献类型:   Article
  • 作  者:   KANG YQ, LIU HM
  • 作者关键词:   absorption, photonic crystal, graphenebased hyperbolic metamaterial
  • 出版物名称:   SUPERLATTICES MICROSTRUCTURES
  • ISSN:   0749-6036
  • 通讯作者地址:   Shanxi Datong Univ
  • 被引频次:   8
  • DOI:   10.1016/j.spmi.2017.12.046
  • 出版年:   2018

▎ 摘  要

A broadband absorber which was proposed by one dimensional photonic crystal (1DPC) containing graphene-based hyperbolic metamaterials (GHMM) is theoretically investigated. For TM mode, it was demonstrated to absorb roughly 90% of all available electromagnetic waves at a 14THz absorption bandwidth at normal incidence. The absorption bandwidth was affected by Fermi energy and thickness of dielectric layer. When the incident angle was increased, the absorption value decreased, and the absorption band had a gradual blue shift. These findings have potential applications for designing broadband optoelectronic devices at mid-infrared and THz frequency range. (C) 2017 Elsevier Ltd. All rights reserved.