Transmission-Type Optical Modulator Based on Graphene Plasmonic Resonator Integrated with Off-Resonant Au Structure

Yuyu Xia, Jie Wang, Yanbin Zhang, Yuwei Shan, Yunyun Dai, Ang Chen, Tangyao Shen, Shiwei Wu, Xiaohan Liu, Lei Shi*, Jian Zi

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

In this paper, a transmission-type graphene plasmonic modulator by introducing off-resonant Au structure is theoretically and experimentally investigated. It is found that the modulation efficiency and bandwidth could be dramatically enhanced compared with bare graphene plasmonic structure. The validity of this proposed method is verified both in the 1D and 2D graphene plasmonic structures: ribbons and holes. This work will open up a new path to design the high-efficiency modulators, switches, and multispectral detectors.

Original languageEnglish
JournalADVANCED OPTICAL MATERIALS
DOIs
Publication statusE-pub ahead of print - 24 Jun 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • coupled-modes theory
  • graphene plasmons
  • graphene–metal composite structure
  • transmission-type modulator

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