Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/47613

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.
KeywordsPlasmonics
Graphene
Quantum emitter
Dyadic Green’s Function
Nanoparticle
Polarizability
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). http://www.mdpi.com/2076-3417/7/11/1158/pdf
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.
Typearticle
URIhttp://hdl.handle.net/1822/47613
DOI10.3390/app7111158
ISSN2076-3417
Publisher versionhttp://www.mdpi.com/2076-3417/7/11/1158/pdf
Peer-Reviewedyes
AccessopenAccess
Appears in Collections:CDF - CEP - Artigos/Papers (with refereeing)

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