• 文献标题:   Peak modulation in multicavity-coupled graphene-based waveguide system
  • 文献类型:   Article
  • 作  者:   WANG JC, WANG XS, SHAO HY, HU ZD, ZHENG GG, ZHANG F
  • 作者关键词:   plasmonically induced transparency, graphenebased waveguide, multiple peak modulation
  • 出版物名称:   NANOSCALE RESEARCH LETTERS
  • ISSN:   1931-7573 EI 1556-276X
  • 通讯作者地址:   Jiangnan Univ
  • 被引频次:   10
  • DOI:   10.1186/s11671-016-1791-0
  • 出版年:   2017

▎ 摘  要

Plasmonically induced transparency (PIT) in a multicavity-coupled graphene-based waveguide system is investigated theoretically and numerically. By using the finite element method (FEM), the multiple mode effect can be achieved, and blue shift is exhibited by tunable altering the chemical potential of the monolayer graphene. We find that the increasing number of the graphene rectangle cavity (GRC) achieves the multiple PIT peaks. In addition, we find that the PIT peaks reduce to just one when the distance between the third cavity and the second one is 100 nm. Easily to be experimentally fabricated, this graphene-based waveguide system has many potential applications for the advancement of 3D ultra-compact, high-performance, and dynamical modulation plasmonic devices.