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Plasmonics

, Volume 14, Issue 6, pp 1949–1954 | Cite as

A Compact Graphene Modulator Based on Localized Surface Plasmon Resonance with a Chain of Metal Disks

  • Jinyu Luan
  • Pengfei Zheng
  • Huimin Yang
  • Guohua Hu
  • Ruohu Zhang
  • Binfeng YunEmail author
  • Yiping CuiEmail author
Article
First Online:
  • 62 Downloads

Abstract

Most graphene electro-optic modulators based on the electro-refractive modulation are composed of Mach-Zehnder interferometer or microring resonator structures and have a relative compact size comparing with dielectric ones. To further shrink the footprint, we use the localized surface plasmon resonance of a chain of three metal disks to realize a submicron graphene modulator, whose length can be reduced to less than 1 μm. The proposed graphene modulator has an extinction ratio of 5.5 dB with a length of only 740 nm. And the insertion loss, 3-dB bandwidth, and power consumption of the modulator are 1.9 dB, 83.4 GHz, and 8.55 fJ/bit respectively.

Keywords

Graphene Localized surface plasmon Modulator 
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Notes

Funding

This work was supported by the National Science Foundation of Jiangsu Province Grant (BK 20161429) and the National Natural Science Foundation of China under Grant (61601118).

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Advanced Photonics CenterSoutheast UniversityNanjingChina

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