• 文献标题:   Independently tunable dual-band plasmon induced transparency enabled by graphene-based terahertz metamaterial
  • 文献类型:   Article
  • 作  者:   LIU JX, JIN KL, HE XY, ZHANG WJ, LIN X, JIN ZM, MA GH
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS EXPRESS
  • ISSN:   1882-0778 EI 1882-0786
  • 通讯作者地址:   Shanghai Univ
  • 被引频次:   1
  • DOI:   10.7567/1882-0786/ab27f9
  • 出版年:   2019

▎ 摘  要

A dual-band plasmon induced transparency (DBPIT) metamaterial based on monolayer graphene in terahertz regime is designed and studied numerically. We demonstrated that both the resonance frequency and transmission amplitude of the structure can be independently tuned by manipulating the Fermi level of graphene via gate voltage. The terahertz transmission of the DBPIT can be well reproduced with a classical three-oscillator model. Furthermore, the transmission amplitude can be additionally enhanced due to the improved mode coupling originated from the magnetic near field enhancement enabled by the Diabolo-like structure. This work may open up a new avenue for designing multiple-band functional devices. (C) 2019 The Japan Society of Applied Physics