Hybridized Plasmons in 2D Nano-slits: From Graphene to Anisotropic 2D Materials
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/47628 |
Resumo: | Plasmon coupling and hybridization in complex nanostructures constitutes a fertile playground for controlling light at the nanoscale. Here, we present a semi-analytical model to describe the emergence of hybrid plasmon modes guided along 2D nano-slits. In particular, we find two new coupled plasmonic resonances arising from symmetric and antisymmetric hybridizations of the edge plasmons of the constituent half-sheets. These give rise to an antibonding and a bonding mode, lying above and below the energy of the bare edge plasmon. Our treatment is notably generic, being able to account for slits of arbitrary width, and remains valid irrespective of the 2D conductive material (e.g., doped graphene, 2D transition metal dichalcogenides, or phosphorene). We derive the dispersion relation of the hybrid modes of a 2D nano-slit along with the corresponding induced potential and electric field distributions. We also discuss the plasmonic spectrum of a 2D slit together with the one from its complementarity structure, that is, a ribbon. Finally, the case of a nano-slit made from an anisotropic 2D material is considered. Focusing on black phosphorus (which is highly anisotropic), we investigate the features of its plasmonic spectrum along the two main crystal axes. Our results offer insights into the interaction of plasmons in complex 2D nanostructures, thereby expanding the current toolkit of plasmonic resonances in 2D materials, and paving the way for the emergence of future compact devices based on atomically thin plasmonics. |
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Hybridized Plasmons in 2D Nano-slits: From Graphene to Anisotropic 2D MaterialsGraphenePlasmonicsTwo-dimensional materialsGraphene plasmonsHybridizationBlack phosphorusNanostructuresPolaritonsCiências Naturais::Ciências FísicasScience & TechnologyPlasmon coupling and hybridization in complex nanostructures constitutes a fertile playground for controlling light at the nanoscale. Here, we present a semi-analytical model to describe the emergence of hybrid plasmon modes guided along 2D nano-slits. In particular, we find two new coupled plasmonic resonances arising from symmetric and antisymmetric hybridizations of the edge plasmons of the constituent half-sheets. These give rise to an antibonding and a bonding mode, lying above and below the energy of the bare edge plasmon. Our treatment is notably generic, being able to account for slits of arbitrary width, and remains valid irrespective of the 2D conductive material (e.g., doped graphene, 2D transition metal dichalcogenides, or phosphorene). We derive the dispersion relation of the hybrid modes of a 2D nano-slit along with the corresponding induced potential and electric field distributions. We also discuss the plasmonic spectrum of a 2D slit together with the one from its complementarity structure, that is, a ribbon. Finally, the case of a nano-slit made from an anisotropic 2D material is considered. Focusing on black phosphorus (which is highly anisotropic), we investigate the features of its plasmonic spectrum along the two main crystal axes. Our results offer insights into the interaction of plasmons in complex 2D nanostructures, thereby expanding the current toolkit of plasmonic resonances in 2D materials, and paving the way for the emergence of future compact devices based on atomically thin plasmonics.Danish National Research Foundation (Project DNRF103), through the Center for Nanostructured Graphene. N.A.M. is a VILLUM Inves- tigator supported by the VILLUM FONDEN (grant No. 16498). N.M.R.P. acknowledges financial support from the European Commission (696656), and the Fundação Portuguesa para a Ciência e a Tecnologia (UID/FIS/04650/2013)info:eu-repo/semantics/acceptedVersionACS PublicationsUniversidade do MinhoGonçalves, Paulo André DiasXiao, SanshuiPeres, N. M. R.Mortensen, N. Asger2017-09-052017-09-05T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/47628engGonçalves, P. A. D., Xiao, S., Peres, N. M. R., & Mortensen, N. A. (2017). Hybridized Plasmons in 2D Nanoslits: From Graphene to Anisotropic 2D Materials. ACS Photonics.2330-40222330-402210.1021/acsphotonics.7b00558http://pubs.acs.org/doi/abs/10.1021/acsphotonics.7b00558info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:25:49Zoai:repositorium.sdum.uminho.pt:1822/47628Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:20:08.399473Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Hybridized Plasmons in 2D Nano-slits: From Graphene to Anisotropic 2D Materials |
title |
Hybridized Plasmons in 2D Nano-slits: From Graphene to Anisotropic 2D Materials |
spellingShingle |
Hybridized Plasmons in 2D Nano-slits: From Graphene to Anisotropic 2D Materials Gonçalves, Paulo André Dias Graphene Plasmonics Two-dimensional materials Graphene plasmons Hybridization Black phosphorus Nanostructures Polaritons Ciências Naturais::Ciências Físicas Science & Technology |
title_short |
Hybridized Plasmons in 2D Nano-slits: From Graphene to Anisotropic 2D Materials |
title_full |
Hybridized Plasmons in 2D Nano-slits: From Graphene to Anisotropic 2D Materials |
title_fullStr |
Hybridized Plasmons in 2D Nano-slits: From Graphene to Anisotropic 2D Materials |
title_full_unstemmed |
Hybridized Plasmons in 2D Nano-slits: From Graphene to Anisotropic 2D Materials |
title_sort |
Hybridized Plasmons in 2D Nano-slits: From Graphene to Anisotropic 2D Materials |
author |
Gonçalves, Paulo André Dias |
author_facet |
Gonçalves, Paulo André Dias Xiao, Sanshui Peres, N. M. R. Mortensen, N. Asger |
author_role |
author |
author2 |
Xiao, Sanshui Peres, N. M. R. Mortensen, N. Asger |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Gonçalves, Paulo André Dias Xiao, Sanshui Peres, N. M. R. Mortensen, N. Asger |
dc.subject.por.fl_str_mv |
Graphene Plasmonics Two-dimensional materials Graphene plasmons Hybridization Black phosphorus Nanostructures Polaritons Ciências Naturais::Ciências Físicas Science & Technology |
topic |
Graphene Plasmonics Two-dimensional materials Graphene plasmons Hybridization Black phosphorus Nanostructures Polaritons Ciências Naturais::Ciências Físicas Science & Technology |
description |
Plasmon coupling and hybridization in complex nanostructures constitutes a fertile playground for controlling light at the nanoscale. Here, we present a semi-analytical model to describe the emergence of hybrid plasmon modes guided along 2D nano-slits. In particular, we find two new coupled plasmonic resonances arising from symmetric and antisymmetric hybridizations of the edge plasmons of the constituent half-sheets. These give rise to an antibonding and a bonding mode, lying above and below the energy of the bare edge plasmon. Our treatment is notably generic, being able to account for slits of arbitrary width, and remains valid irrespective of the 2D conductive material (e.g., doped graphene, 2D transition metal dichalcogenides, or phosphorene). We derive the dispersion relation of the hybrid modes of a 2D nano-slit along with the corresponding induced potential and electric field distributions. We also discuss the plasmonic spectrum of a 2D slit together with the one from its complementarity structure, that is, a ribbon. Finally, the case of a nano-slit made from an anisotropic 2D material is considered. Focusing on black phosphorus (which is highly anisotropic), we investigate the features of its plasmonic spectrum along the two main crystal axes. Our results offer insights into the interaction of plasmons in complex 2D nanostructures, thereby expanding the current toolkit of plasmonic resonances in 2D materials, and paving the way for the emergence of future compact devices based on atomically thin plasmonics. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-05 2017-09-05T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/47628 |
url |
http://hdl.handle.net/1822/47628 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Gonçalves, P. A. D., Xiao, S., Peres, N. M. R., & Mortensen, N. A. (2017). Hybridized Plasmons in 2D Nanoslits: From Graphene to Anisotropic 2D Materials. ACS Photonics. 2330-4022 2330-4022 10.1021/acsphotonics.7b00558 http://pubs.acs.org/doi/abs/10.1021/acsphotonics.7b00558 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
ACS Publications |
publisher.none.fl_str_mv |
ACS Publications |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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