期刊
CRYSTALS
卷 9, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/cryst9070354
关键词
surface plasmon polaritons; graphene; mid-infrared
资金
- National Natural Science Foundation of China [61376099, 61434007, 61504100]
- 111 Project [B12026]
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.
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