Geometric frustration in ordered lattices of plasmonic nanoelements

Inspired by geometrically frustrated magnetic systems, we present the optical response of three cases of hexagonal lattices of plasmonic nanoelements. All of them were designed using a metal-insulator-metal configuration to enhance absorption of light, with elements in close proximity to exploit nea...

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Autores: Conde Rubio, Ana, Fraile Rodríguez, Arantxa, Espinha, André, Mihi, Agustín, Pérez Murano, Francesc, Batlle Gelabert, Xavier, Labarta, Amílcar
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/176767
Acceso en línea:https://hdl.handle.net/2445/176767
Access Level:acceso abierto
Palabra clave:Absorció de la llum
Polarització (Llum)
Light absorption
Polarization (Light)
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spelling Geometric frustration in ordered lattices of plasmonic nanoelementsConde Rubio, AnaFraile Rodríguez, ArantxaEspinha, AndréMihi, AgustínPérez Murano, FrancescBatlle Gelabert, XavierLabarta, AmílcarAbsorció de la llumPolarització (Llum)Light absorptionPolarization (Light)Inspired by geometrically frustrated magnetic systems, we present the optical response of three cases of hexagonal lattices of plasmonic nanoelements. All of them were designed using a metal-insulator-metal configuration to enhance absorption of light, with elements in close proximity to exploit near-field coupling, and with triangular symmetry to induce frustration of the dipolar polarization in the gaps between neighboring structures. Both simulations and experimental results demonstrate that these systems behave as perfect absorbers in the visible and/or the near infrared. Besides, the numerical study of the time evolution shows that they exhibit a relatively extended time response over which the system fluctuates between localized and collective modes. It is of particular interest the echoed excitation of surface lattice resonance modes, which are still present at long times because of the geometric frustration inherent to the triangular lattice. It is worth noting that the excitation of collective modes is also enhanced in other types of arrays where dipolar excitations of the nanoelements are hampered by the symmetry of the array. However, we would like to emphasize that the enhancement in triangular arrays can be significantly larger because of the inherent geometric incompatibility of dipolar excitations and three-fold symmetry axes.Nature Publishing Group2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/176767Articles publicats en revistes (Física de la Matèria Condensada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1038/s41598-019-40117-4Scientific Reports, 2019, vol. 9, num. 1, p. 3529https://doi.org/10.1038/s41598-019-40117-4info:eu-repo/grantAgreement/EC/H2020/637116cc-by (c) Conde Rubio, Ana et al., 2019http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1767672026-05-27T06:46:51Z
dc.title.none.fl_str_mv Geometric frustration in ordered lattices of plasmonic nanoelements
title Geometric frustration in ordered lattices of plasmonic nanoelements
spellingShingle Geometric frustration in ordered lattices of plasmonic nanoelements
Conde Rubio, Ana
Absorció de la llum
Polarització (Llum)
Light absorption
Polarization (Light)
title_short Geometric frustration in ordered lattices of plasmonic nanoelements
title_full Geometric frustration in ordered lattices of plasmonic nanoelements
title_fullStr Geometric frustration in ordered lattices of plasmonic nanoelements
title_full_unstemmed Geometric frustration in ordered lattices of plasmonic nanoelements
title_sort Geometric frustration in ordered lattices of plasmonic nanoelements
dc.creator.none.fl_str_mv Conde Rubio, Ana
Fraile Rodríguez, Arantxa
Espinha, André
Mihi, Agustín
Pérez Murano, Francesc
Batlle Gelabert, Xavier
Labarta, Amílcar
author Conde Rubio, Ana
author_facet Conde Rubio, Ana
Fraile Rodríguez, Arantxa
Espinha, André
Mihi, Agustín
Pérez Murano, Francesc
Batlle Gelabert, Xavier
Labarta, Amílcar
author_role author
author2 Fraile Rodríguez, Arantxa
Espinha, André
Mihi, Agustín
Pérez Murano, Francesc
Batlle Gelabert, Xavier
Labarta, Amílcar
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Absorció de la llum
Polarització (Llum)
Light absorption
Polarization (Light)
topic Absorció de la llum
Polarització (Llum)
Light absorption
Polarization (Light)
description Inspired by geometrically frustrated magnetic systems, we present the optical response of three cases of hexagonal lattices of plasmonic nanoelements. All of them were designed using a metal-insulator-metal configuration to enhance absorption of light, with elements in close proximity to exploit near-field coupling, and with triangular symmetry to induce frustration of the dipolar polarization in the gaps between neighboring structures. Both simulations and experimental results demonstrate that these systems behave as perfect absorbers in the visible and/or the near infrared. Besides, the numerical study of the time evolution shows that they exhibit a relatively extended time response over which the system fluctuates between localized and collective modes. It is of particular interest the echoed excitation of surface lattice resonance modes, which are still present at long times because of the geometric frustration inherent to the triangular lattice. It is worth noting that the excitation of collective modes is also enhanced in other types of arrays where dipolar excitations of the nanoelements are hampered by the symmetry of the array. However, we would like to emphasize that the enhancement in triangular arrays can be significantly larger because of the inherent geometric incompatibility of dipolar excitations and three-fold symmetry axes.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/176767
url https://hdl.handle.net/2445/176767
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1038/s41598-019-40117-4
Scientific Reports, 2019, vol. 9, num. 1, p. 3529
https://doi.org/10.1038/s41598-019-40117-4
info:eu-repo/grantAgreement/EC/H2020/637116
dc.rights.none.fl_str_mv cc-by (c) Conde Rubio, Ana et al., 2019
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Conde Rubio, Ana et al., 2019
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
dc.source.none.fl_str_mv Articles publicats en revistes (Física de la Matèria Condensada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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