• 文献标题:   Tunable Optical Bistability in One-Dimensional Photonic Crystal with a Nonlinear Defect Coupled by Graphene Sheets
  • 文献类型:   Article
  • 作  者:   ZHENG ZW, JIANG LY, GUO J, DAI XY, XIANG YJ
  • 作者关键词:  
  • 出版物名称:   ADVANCES IN CONDENSED MATTER PHYSICS
  • ISSN:   1687-8108 EI 1687-8124
  • 通讯作者地址:   Shenzhen Univ
  • 被引频次:   0
  • DOI:   10.1155/2017/6590424
  • 出版年:   2017

▎ 摘  要

The optical bistability in one-dimensional photonic crystal (1DPC) with a nonlinear defect is investigated. It is demonstrated that, by introducing graphene layers into the nonlinear defect, the optical bistability in 1DPC can be changed significantly. The hysteresis threshold increases with the number of graphene monolayers and can be lowered or enhanced by tuning the Fermi energy of graphene. On the other hand, the hysteresis width and the nonlinear lateral shift can also be controlled by varying the Femi energy and the number of graphene monolayers. These results may be useful for controlling the optical bistability and nonlinear lateral shift in 1DPCs.