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Optical Transport Properties of Graphene Surface Plasmon Polaritons in Mid-Infrared Band

Key Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, China
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Crystals 2019, 9(7), 354; https://doi.org/10.3390/cryst9070354
Received: 18 June 2019 / Revised: 5 July 2019 / Accepted: 10 July 2019 / Published: 12 July 2019
(This article belongs to the Special Issue Graphene Mechanics)
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Abstract

The excellent transmission characteristics of graphene surface plasmon polaritons in mid-infrared band were analyzed and verified effectively through theoretical derivation and soft simulation in this paper. Meanwhile, a sandwich waveguide structure of dielectric–graphene–substrate–dielectric based on graphene surface plasmon polaritons (SPPs) was presented. Simulation results indicate that graphene SPPs show unique properties in the mid-infrared region including ultra-compact mode confinement and dynamic tunability, which allow these SPPs to overcome the defects of metal SPPs and traditional silicon-based optoelectronic devices. Thus, they can be used to manufacture subwavelength devices. The work in this paper lays a theoretical foundation for the application of graphene SPPs in the mid-infrared region. View Full-Text
Keywords: surface plasmon polaritons; graphene; mid-infrared surface plasmon polaritons; graphene; mid-infrared
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Wang, Y.; Liu, H.; Wang, S.; Cai, M.; Ma, L. Optical Transport Properties of Graphene Surface Plasmon Polaritons in Mid-Infrared Band. Crystals 2019, 9, 354.

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