• 文献标题:   Tunable Bistability in the Goos-Hanchen Effect with Nonlinear Graphene
  • 文献类型:   Article
  • 作  者:   LIU BB, MA PJ, YU WJ, XU YD, GAO L
  • 作者关键词:  
  • 出版物名称:   CHINESE PHYSICS LETTERS
  • ISSN:   0256-307X EI 1741-3540
  • 通讯作者地址:   Soochow Univ
  • 被引频次:   1
  • DOI:   10.1088/0256-307X/36/6/064202
  • 出版年:   2019

▎ 摘  要

We present a planar model system of a silica covered with a monolayer of nonlinear graphene to achieve a tunable Goos-Hanchen (GH) shift in the terahertz range. It is theoretically found that the transition between a negative shift and a large positive one can be realized by altering the intensity of incident light. Moreover, by controlling the chemical potential of graphene and the incident angle of light, we can further control the tunable GH shift dynamically. Numerical simulations for GH shifts based on Gaussian waves are in good agreement with our theoretical calculations.