• 文献标题:   Large modulation capacity in graphene-based slot modulators by enhanced hybrid plasmonic effects
  • 文献类型:   Article
  • 作  者:   HAO RW, YE ZW, GU YJ, PENG XL, CHEN HS, LI EP
  • 作者关键词:  
  • 出版物名称:   SCIENTIFIC REPORTS
  • ISSN:   2045-2322
  • 通讯作者地址:   Zhejiang Univ
  • 被引频次:   1
  • DOI:   10.1038/s41598-018-34914-6
  • 出版年:   2018

▎ 摘  要

We present an effective scheme to improve the modulation capacity in graphene-based silicon modulator by employing the double slots configuration with hybrid plasmonic effects. Two modulators, i.e., metal-insulator-metal and insulator-metal-insulator configurations have been demonstrated, showing that the double slots design can significantly improve the modulation efficiency. The obtained modulation efficiency is up to 0.525 dB/mu m per graphene layer, far exceeding previous studies. It can be found that the light-graphene interaction plays a pivotal role in the modulation efficiency, whereas the height of metal has profound influence on the modulation. Our results may promote various future modulation devices based on graphene.