• 文献标题:   Graphene-embedded coding metasurface for dynamic terahertz manipulation
  • 文献类型:   Article
  • 作  者:   ZHOU C, PENG XQ, LI JS
  • 作者关键词:   grapheneembedded coding metasurface, terahertz wave, dynamic terahertz manipulation
  • 出版物名称:   OPTIK
  • ISSN:   0030-4026 EI 1618-1336
  • 通讯作者地址:   China Jiliang Univ
  • 被引频次:   0
  • DOI:   10.1016/j.ijleo.2020.164937
  • 出版年:   2020

▎ 摘  要

With the rapid development of terahertz wave technology and application systems, the dynamic manipulation of terahertz radiation is highly needed. We have investigated the performances of a graphene-embedded coding metasurface that can dynamically control the terahertz wave transmission. The coding element consists of gold substrate, silicon-polyimide interlayer and the top graphene-embedded metallic pattern that can realize abrupt reflection phase shift by adjusting the graphene Fermi level. Especially, by changing the Fermi energy of the graphene through bias voltage and pre-designed coding sequence, the new coding metasurface structure can control the reflected terahertz wave beams to various directions. The method brings us much freedom in design of terahertz wave manipulation device.