• 文献标题:   Tunable Multichannel Plasmonic Filter Based on a Single Graphene Sheet on a Fibonacci Quasiperiodic Structure
  • 文献类型:   Article
  • 作  者:   FENG YC, LIU YW, WANG XH, DONG DX, SHI YY, TANG LZ
  • 作者关键词:   surface plasmon polariton, graphene, fibonacci quasiperiodic structure, multichannel filter
  • 出版物名称:   PLASMONICS
  • ISSN:   1557-1955 EI 1557-1963
  • 通讯作者地址:   Nanjing Univ Aeronaut Astronaut
  • 被引频次:   6
  • DOI:   10.1007/s11468-017-0557-6
  • 出版年:   2018

▎ 摘  要

We propose a tunable multichannel plasmonic mid-infrared filter of a single graphene sheet depositing on a Fibonacci quasiperiodic structure. The transmission spectra are numerically analyzed by a finite-difference time-domain (FDTD) method, and the results show that the filtering properties of the proposed structure can be tuned by the chemical potentials of graphene, the width and depth of air grooves, and the refractive index of the substrate. The simulation results are discussed analytically by deducing the dispersion relation of surface plasmon polariton propagating on four layers structure of air/graphene/air/dielectric. The proposed structure may find potential applications in tunable filters, sensors, and integrated photonic circuits.