Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/61492

TitlePropagation of surface plasmons on plasmonic Bragg gratings
Author(s)Chaves, A. J.
Peres, N. M. R.
KeywordsPlasmons
Graphene
Bragg
Grating
Issue date11-Dec-2018
PublisherAIP Publishing
JournalJournal of Applied Physics
CitationChaves, A. J., & Peres, N. M. R. (2019). Propagation of surface plasmons on plasmonic Bragg gratings. Journal of Applied Physics, 125(24), 243106.
Abstract(s)We use coupled-mode theory to describe the scattering of a surface-plasmon polariton (SPP) from a square wave grating (Bragg grating) of finite extension written on the surface of either a metal-dielectric interface or a dielectric-dielectric interface covered with a patterned graphene sheet. We find analytical solutions for the reflectance and transmittance of SPP's when only two modes (forward- and back-scattered) are considered. We show that in both cases the reflectance spectrum presents stop-bands where the SPP is completely back-scattered, if the grating is not too shallow. In addition, the reflectance coefficient shows Fabry-P\'erot oscillations when the frequency of the SPP is out of the stop-band region. For a single dielectric well, we show that there are frequencies of transmission equal to 1. We also provide simple analytical expression for the different quantities in the electrostatic limit.
TypeArticle
URIhttp://hdl.handle.net/1822/61492
DOI10.1063/1.5099060
ISSN0021-8979
e-ISSN1089-7550
Publisher versionhttps://aip.scitation.org/doi/full/10.1063/1.5099060
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CDF - CEP - Artigos/Papers (with refereeing)

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