Graphene-based plasmonic switches at near infrared frequencies

Abstract

The concept, analysis, and design of series switches for graphene-strip plasmonic waveguides at near infrared frequencies are presented. Switching is achieved by using graphene's field effect to selectively enable or forbid propagation on a section of the graphene strip waveguide, thereby allowing good transmission or high isolation, respectively. The electromagnetic modeling of the proposed structure is performed using full-wave simulations and a transmission line model combined with a matrix-transfer approach, which takes into account the characteristics of the plasmons supported by the different graphene-strip waveguide sections of the device. The performance of the switch is evaluated versus different parameters of the structure, including surrounding dielectric media, electrostatic gating and waveguide dimensions.

14 pages, 20 figures

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Cited by in corpus (9)

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• Fundamental limits and near-optimal design of graphene modulators and non-reciprocal devices
• Electrical 2π phase control of infrared light in a 350nm footprint using graphene plasmons
• Enhanced third harmonic generation with graphene metasurfaces
• Surface plasmon polaritons on soft-boundary graphene nanoribbons and their application as voltage controlled plasmonic switches and frequency demultiplexers
• Theory of plasmon reflection by a 1D junction
• On the Influence of Spatial Dispersion on the Performance of Graphene-Based Plasmonic Devices
• Controllable Excitation of Surface Plasmon Polaritons in Graphene-Based Semiconductor Quantum Dot Waveguides