Maximum modulation of plasmon-guided modes by graphene gating

Ilya P. Radko; Sergey I. Bozhevolnyi; Alexander N. Grigorenko

doi:10.1364/OE.24.008266

Maximum modulation of plasmon-guided modes by graphene gating

Ilya P. Radko, Sergey I. Bozhevolnyi, Alexander N. Grigorenko

Syddansk Universitet

Research output: Contribution to journal › Article › peer-review

Abstract

The potential of graphene in plasmonic electro-optical waveguide modulators has been investigated in detail by finite-element method modelling of various widely used plasmonic waveguiding configurations. We estimated the maximum possible modulation depth values one can achieve with plasmonic devices operating at telecom wavelengths and exploiting the optical Pauli blocking effect in graphene. Conclusions and guidelines for optimization of modulation/intrinsic loss trade-off have been provided and generalized for any graphene-based plasmonic waveguide modulators, which should help in consideration and design of novel active-plasmonic devices.

Original language	English
Pages (from-to)	8266-8279
Number of pages	14
Journal	Optics Express
Volume	24
Issue number	8
DOIs	https://doi.org/10.1364/OE.24.008266
Publication status	Published - 8 Apr 2016

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10.1364/OE.24.008266Licence: CC BY

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AB - The potential of graphene in plasmonic electro-optical waveguide modulators has been investigated in detail by finite-element method modelling of various widely used plasmonic waveguiding configurations. We estimated the maximum possible modulation depth values one can achieve with plasmonic devices operating at telecom wavelengths and exploiting the optical Pauli blocking effect in graphene. Conclusions and guidelines for optimization of modulation/intrinsic loss trade-off have been provided and generalized for any graphene-based plasmonic waveguide modulators, which should help in consideration and design of novel active-plasmonic devices.

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Maximum modulation of plasmon-guided modes by graphene gating

Abstract

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