• 文献标题:   Reflection shifts in a graphene-coated dielectric-metal composite of non-spherical particles
  • 文献类型:   Article
  • 作  者:   ZOGHI M
  • 作者关键词:   gooshanchen shift, imbertfedorov shift, graphene, dielectricmetal nanocomposite, nonspherical particle, nano optic
  • 出版物名称:   OPTICS COMMUNICATIONS
  • ISSN:   0030-4018 EI 1873-0310
  • 通讯作者地址:   Univ Tehran
  • 被引频次:   0
  • DOI:   10.1016/j.optcom.2019.06.013
  • 出版年:   2019

▎ 摘  要

Using effective medium theory, spatial and angular Goos-Hanchen and Imbert-Fedorov reflection shifts of a graphene-coated granular substrate composed of non-spherical gold nanoparticles in a dielectric host are investigated. The numerical results indicate that the composite substrate can play a role in tunability of shifts similar to that of an electrically-controlled graphene layer does. It is realized that both shape and volume fraction of granular inclusions can bring about a broad shift modulation. This may provide applications in nano-optics as well as in characterizing the parameters of the composite.