• 文献标题:   Nonreciprocal optical isolation via graphene based photonic crystals
  • 文献类型:   Article
  • 作  者:   ENTEZAR SR, HABIL MK
  • 作者关键词:   circularly polarized wave, graphene monolayer, optical isolator, photonic crystal
  • 出版物名称:   JOURNAL OF MAGNETISM MAGNETIC MATERIALS
  • ISSN:   0304-8853 EI 1873-4766
  • 通讯作者地址:   Univ Tabriz
  • 被引频次:   7
  • DOI:   10.1016/j.jmmm.2017.10.017
  • 出版年:   2018

▎ 摘  要

The transmission properties of a one-dimensional photonic crystal containing graphene mono-layers are studied using the transfer matrix method. It is shown that the structure can be used as a polarization-selective nonreciprocal device which discriminates between the two circularly polarized waves with different handedness impinging in the same direction. This structure may be utilized in designing optical isolators for the circularly polarized waves due to the gyrotropic behavior of the graphene monolayers under the perpendicularly applied external magnetic field. Moreover, the effect of an external magnetic field and the chemical potential of the graphene mono-layers on the band gap of the structure are investigated. (C) 2017 Elsevier B.V. All rights reserved.