• 文献标题:   Graphene Based Controllable Broadband Terahertz Metamaterial Absorber with Transmission Band
  • 文献类型:   Article
  • 作  者:   ZHOU QH, ZHA S, LIU PG, LIU CX, BIAN LA, ZHANG JH, LIU HQ, DING L
  • 作者关键词:   metamaterial absorber, graphene, broadband absorption, passband
  • 出版物名称:   MATERIALS
  • ISSN:   1996-1944
  • 通讯作者地址:   Natl Univ Def Technol
  • 被引频次:   3
  • DOI:   10.3390/ma11122409
  • 出版年:   2018

▎ 摘  要

A graphene-based controllable broadband terahertz metamaterial absorber with transmission band is presented in this paper. It consists of a graphene-SiO2-frequency selective surface (FSS) sandwich structure. The sinusoidal graphene layer supports continuous plasmonic resonances, forming a broad electric-tuning absorbing band. Bandpass FSS constructs a transmission window outside the absorbing band. The simulation results indicate that the absorption from 0.5 THz to 1 THz can be tuned continuously from 0.4 to 0.9 with angle and polarization independence. A transparent window peaking at 1.65 THz maintains high transmittance over 0.7. The metamaterial absorber has potential applications for detection, stealth, filtering, and electromagnetic compatibility.