• 文献标题:   Significant enhancement in the efficiency of photoconductive antennas using a hybrid graphene molybdenum disulphide structure
  • 文献类型:   Article
  • 作  者:   ZANGENEHNEJAD F, SAFIAN R
  • 作者关键词:   photoconductive antenna, graphene, molybdenum disulphide, surface plasmon, reconfigurable antenna
  • 出版物名称:   JOURNAL OF NANOPHOTONICS
  • ISSN:   1934-2608
  • 通讯作者地址:   Sharif Univ Technol
  • 被引频次:   10
  • DOI:   10.1117/1.JNP.10.036005
  • 出版年:   2016

▎ 摘  要

We propose a hybrid graphene molybdenum disulphide-based photoconductive antenna to overcome the restrictions of metallic photoconductive antennas and graphene-based photoconductive antennas, simultaneously. The structure is composed of a hybrid graphene-MoS2 strip as the antenna deposited on a low-temperature gallium arsenide substrate. A full-wave electromagnetic solver, namely, high frequency structural simulator (HFSS) is used to analyze the whole structure. It is shown that the proposed photoconductive antenna provides us with not only high input impedance and reconfigurability but also high values of matching efficiency and radiation efficiency. The impact of increasing MoS2 layers on the performance of the antenna is also investigated. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE).