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Plasmonic Mach Zehnder interferometer based on graphene sheets and resonators

JICHENG WANG1,2,* , XIUYE LIANG1, XIUSHAN XIA1, BAOJIE TANG1

Affiliation

  1. School of Science, Jiangnan University, Wuxi 214122, China
  2. Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, 912, Beijing 100083, P.R. China

Abstract

We theoretically design the plasmonic structures based on the coupling between the graphene sheets and resonators for the mid IR region, which can be used to construct the ultra compact fast tunable optical filter, splitter, 1×2 digital optical switch, or Mach Zehnder interferometer. Electric al tunability of the system by tiny change of the Fermi level (chemical potential) of the graphene is realized In addition the quality and sensitivity of the system can be optimized by changing the coupling distance The finite element method results are verified by the resonance theory of the rings..

Keywords

Graphene plamonics, Mach-Zehnder interferometer, Resonator, Fermi lovel.

Citation

JICHENG WANG, XIUYE LIANG, XIUSHAN XIA, BAOJIE TANG, Plasmonic Mach Zehnder interferometer based on graphene sheets and resonators, Optoelectronics and Advanced Materials - Rapid Communications, 11, 1-2, January-February 2017, pp.17-22 (2017).

Submitted at: Dec. 14, 2015

Accepted at: Feb. 10, 2017