https://doi.org/10.1140/epjb/s10051-022-00456-0
Regular Article - Solid State and Materials
Tunable broadband superradiance near a graphene/hyperbolic metamaterial/graphene sandwich structure
Department of Physics, Nanchang University, 330031, Nanchang, People’s Republic of China
Received:
27
September
2022
Accepted:
13
November
2022
Published online:
27
November
2022
A sandwich structure constituting graphene and hyperbolic metamaterial (HMM) that is made of silicon carbide (SiC) nanowires is proposed to study the spontaneous emission of quantum emitter. Compared with that occurring only in the hyperbolic bands near the single HMM, the enhancement of spontaneous emission of quantum emitter near the sandwich can emerge both in and out of the hyperbolic bands. The superradiance of two quantum emitters connected by the sandwich structure in the transmission configuration has also been studied in detail. The superradiance can also be attained both in and out of the hyperbolic bands in a broad frequency range. When the distance between two quantum emitters becomes larger, the superradiance still exists by actively controlling the chemical potential of graphene. The results obtained in this study are not only meaningful for modulating the interaction between atoms or quantum emitters, but also helpful in studying the light–matter interaction.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
