Affiliation:
1. Institute of Space Science and Technology, Nanchang University 1 , Nanchang 330031, China
2. Department of Electrical Engineering, The Pennsylvania State University 2 , University Park, Pennsylvania 16803, USA
Abstract
Graphene can support surface plasmons with higher confinement, lower propagation loss, and substantially more tunable response compared to usual metal-based plasmonic structures. Interestingly, plasmons in graphene can strongly couple with nanostructures and gratings placed in its vicinity to form new hybrid systems that can provide a platform to investigate more complicated plasmonic phenomena. In this Perspective, an analysis on the excitation of highly confined graphene plasmons and their strong coupling with metallic or dielectric gratings is performed. We emphasize the flexibility in the efficient control of light–matter interaction by these new hybrid systems, benefiting from the interplay between graphene plasmons and other external resonant modes. The hybrid graphene-plasmon grating systems offer unique tunable plasmonic resonances with enhanced field distributions. They exhibit a novel route to realize practical emerging applications, including nonreciprocal devices, plasmonic switches, perfect absorbers, nonlinear structures, photodetectors, and optical sensors.
Funder
National Natural Science Foundation of China-China Academy of General Technology Joint Fund for Basic Research
National Science Foundation
Office of Naval Research
Subject
General Physics and Astronomy
Cited by
3 articles.
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