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TitleImpact of graphene on the polarizability of a neighbour nanoparticle: a dyadic Green's function study
Author(s)Amorim, Bruno
Gonçalves, Paulo André Dias
Vasilevskiy, Mikhail
Peres, N. M. R.
Quantum emitter
Dyadic Green’s Function
Issue date15-Oct-2017
PublisherMultidisciplinary Digital Publishing Institute (MDPI)
JournalApplied Sciences
CitationB. Amorim, P. A. D. Gonçalves, M. I. Vasilevskiy, and N. M. R. Peres, “Impact of Graphene on the Polarizability of a Neighbour Nanoparticle: A Dyadic Green’s Function Study”, Appl. Sci. 7 (2017) 1158 (31 pages).
Abstract(s)We discuss the renormalization of the polarizability of a nanoparticle in the presence of either (i) a continuous graphene sheet or (ii) a plasmonic graphene grating, taking into account retardation effects. Our analysis demonstrates that the excitation of surface plasmon-polaritons in graphene produces a large enhancement of the real and imaginary parts of the renormalized polarizability. We show that the imaginary part can be changed by a factor of up to 100 relatively to its value in the absence of graphene. We also show that the resonance in the case of the grating is narrower than in the continuous sheet. In the case of the grating it is shown that the resonance can be tuned by changing the grating geometric parameters.
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Appears in Collections:CDF - CEP - Artigos/Papers (with refereeing)

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