Channel surface plasmons in a continuous and flat graphene sheet
| Main Author: | |
|---|---|
| Publication Date: | 2018 |
| Other Authors: | , , |
| Format: | Article |
| Language: | eng |
| Source: | Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
| Download full: | http://hdl.handle.net/1822/61489 |
Summary: | We derive an integral equation describing surface-plasmon polaritons in graphene deposited on a substrate with a planar surface and a dielectric protrusion in the opposite surface of the dielectric slab. We show that the problem is mathematically equivalent to the solution of a Fredholm equation, which we solve exactly. In addition, we show that the dispersion relation of the channel surface plasmons is determined by the geometric parameters of the protrusion alone. We also show that such a system supports both even and odd modes. We give the electrostatic potential and the intensity plot of the electrostatic field, which clearly show the transverse localized nature of the surface plasmons in a continuous and flat graphene sheet. |
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Channel surface plasmons in a continuous and flat graphene sheetCiências Naturais::Ciências FísicasScience & TechnologyWe derive an integral equation describing surface-plasmon polaritons in graphene deposited on a substrate with a planar surface and a dielectric protrusion in the opposite surface of the dielectric slab. We show that the problem is mathematically equivalent to the solution of a Fredholm equation, which we solve exactly. In addition, we show that the dispersion relation of the channel surface plasmons is determined by the geometric parameters of the protrusion alone. We also show that such a system supports both even and odd modes. We give the electrostatic potential and the intensity plot of the electrostatic field, which clearly show the transverse localized nature of the surface plasmons in a continuous and flat graphene sheet.A.J.C. acknowledges a scholarship from the Brazilian agency CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico). N.M.R.P. acknowledges the European Commission through the project Graphene-Driven Revolutions in ICT and Beyond (Ref. No. 696656) and the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Financing UID/FIS/04650/2013. D.R.C. and G.A.F. acknowledge CNPq under the PRONEX/FUNCAP grants and the CAPES Foundation.American Physical SocietyUniversidade do MinhoChaves, A. J.Peres, N. M. R.da Costa, D. R.Farias, G. A.20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/61489eng2469-995010.1103/PhysRevB.97.205435info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-11T06:23:05Zoai:repositorium.sdum.uminho.pt:1822/61489Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T15:51:34.275982Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse |
| dc.title.none.fl_str_mv |
Channel surface plasmons in a continuous and flat graphene sheet |
| title |
Channel surface plasmons in a continuous and flat graphene sheet |
| spellingShingle |
Channel surface plasmons in a continuous and flat graphene sheet Chaves, A. J. Ciências Naturais::Ciências Físicas Science & Technology |
| title_short |
Channel surface plasmons in a continuous and flat graphene sheet |
| title_full |
Channel surface plasmons in a continuous and flat graphene sheet |
| title_fullStr |
Channel surface plasmons in a continuous and flat graphene sheet |
| title_full_unstemmed |
Channel surface plasmons in a continuous and flat graphene sheet |
| title_sort |
Channel surface plasmons in a continuous and flat graphene sheet |
| author |
Chaves, A. J. |
| author_facet |
Chaves, A. J. Peres, N. M. R. da Costa, D. R. Farias, G. A. |
| author_role |
author |
| author2 |
Peres, N. M. R. da Costa, D. R. Farias, G. A. |
| author2_role |
author author author |
| dc.contributor.none.fl_str_mv |
Universidade do Minho |
| dc.contributor.author.fl_str_mv |
Chaves, A. J. Peres, N. M. R. da Costa, D. R. Farias, G. A. |
| dc.subject.por.fl_str_mv |
Ciências Naturais::Ciências Físicas Science & Technology |
| topic |
Ciências Naturais::Ciências Físicas Science & Technology |
| description |
We derive an integral equation describing surface-plasmon polaritons in graphene deposited on a substrate with a planar surface and a dielectric protrusion in the opposite surface of the dielectric slab. We show that the problem is mathematically equivalent to the solution of a Fredholm equation, which we solve exactly. In addition, we show that the dispersion relation of the channel surface plasmons is determined by the geometric parameters of the protrusion alone. We also show that such a system supports both even and odd modes. We give the electrostatic potential and the intensity plot of the electrostatic field, which clearly show the transverse localized nature of the surface plasmons in a continuous and flat graphene sheet. |
| publishDate |
2018 |
| dc.date.none.fl_str_mv |
2018 2018-01-01T00:00:00Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
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http://hdl.handle.net/1822/61489 |
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http://hdl.handle.net/1822/61489 |
| dc.language.iso.fl_str_mv |
eng |
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eng |
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2469-9950 10.1103/PhysRevB.97.205435 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
American Physical Society |
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American Physical Society |
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