On the far field optical properties of Ag-Au nanosphere pairs

Autores
Encina, Ezequiel Roberto; Coronado, Eduardo A.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work we study the far field optical properties of heterodimers composed of a silver and a gold nanosphere of the same size, by means of exact electrodynamics calculations based on the generalized multiparticle Mie theory. We analyze the effect of the incident polarization, nanosphere separation, radius and dielectric media on the optical response. The on resonance angular distribution of the scattered radiation is also analyzed. The nonsymmetrical features of this system allow us to evaluate and perform a careful examination of the contributions of absorption and scattering from each individual nanosphere to the total extinction of the system. At variance with the homodimer system, the heterodimer exhibits a simultaneous shift of two plasmonic resonances. This feature constitutes a very useful and accurate way to calibrate both interparticle distance and size at the same time for a given dielectric environment. In this way, we provide a general and complete description of the far field optical properties of this particular nanostructure, which may be valuable for the design and development of plasmonic devices and optical tools and could serve as benchmark calculations for future comparisons with experiments.
Fil: Encina, Ezequiel Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Coronado, Eduardo A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Materia
Plasmónica
Heterodímero
Regla Plasmónica
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/69959
Acceder
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network_name_str CONICET Digital (CONICET)
spelling On the far field optical properties of Ag-Au nanosphere pairsEncina, Ezequiel RobertoCoronado, Eduardo A.PlasmónicaHeterodímeroRegla Plasmónicahttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this work we study the far field optical properties of heterodimers composed of a silver and a gold nanosphere of the same size, by means of exact electrodynamics calculations based on the generalized multiparticle Mie theory. We analyze the effect of the incident polarization, nanosphere separation, radius and dielectric media on the optical response. The on resonance angular distribution of the scattered radiation is also analyzed. The nonsymmetrical features of this system allow us to evaluate and perform a careful examination of the contributions of absorption and scattering from each individual nanosphere to the total extinction of the system. At variance with the homodimer system, the heterodimer exhibits a simultaneous shift of two plasmonic resonances. This feature constitutes a very useful and accurate way to calibrate both interparticle distance and size at the same time for a given dielectric environment. In this way, we provide a general and complete description of the far field optical properties of this particular nanostructure, which may be valuable for the design and development of plasmonic devices and optical tools and could serve as benchmark calculations for future comparisons with experiments.Fil: Encina, Ezequiel Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Coronado, Eduardo A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaAmerican Chemical Society2010-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/69959Encina, Ezequiel Roberto; Coronado, Eduardo A.; On the far field optical properties of Ag-Au nanosphere pairs; American Chemical Society; Journal of Physical Chemistry C; 114; 39; 10-2010; 16278-162841932-74471932-7455CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jp105522binfo:eu-repo/semantics/altIdentifier/doi/10.1021/jp105522binfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:05:09Zoai:ri.conicet.gov.ar:11336/69959instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:05:09.439CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the far field optical properties of Ag-Au nanosphere pairs
title On the far field optical properties of Ag-Au nanosphere pairs
spellingShingle On the far field optical properties of Ag-Au nanosphere pairs
Encina, Ezequiel Roberto
Plasmónica
Heterodímero
Regla Plasmónica
title_short On the far field optical properties of Ag-Au nanosphere pairs
title_full On the far field optical properties of Ag-Au nanosphere pairs
title_fullStr On the far field optical properties of Ag-Au nanosphere pairs
title_full_unstemmed On the far field optical properties of Ag-Au nanosphere pairs
title_sort On the far field optical properties of Ag-Au nanosphere pairs
dc.creator.none.fl_str_mv Encina, Ezequiel Roberto
Coronado, Eduardo A.
author Encina, Ezequiel Roberto
author_facet Encina, Ezequiel Roberto
Coronado, Eduardo A.
author_role author
author2 Coronado, Eduardo A.
author2_role author
dc.subject.none.fl_str_mv Plasmónica
Heterodímero
Regla Plasmónica
topic Plasmónica
Heterodímero
Regla Plasmónica
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work we study the far field optical properties of heterodimers composed of a silver and a gold nanosphere of the same size, by means of exact electrodynamics calculations based on the generalized multiparticle Mie theory. We analyze the effect of the incident polarization, nanosphere separation, radius and dielectric media on the optical response. The on resonance angular distribution of the scattered radiation is also analyzed. The nonsymmetrical features of this system allow us to evaluate and perform a careful examination of the contributions of absorption and scattering from each individual nanosphere to the total extinction of the system. At variance with the homodimer system, the heterodimer exhibits a simultaneous shift of two plasmonic resonances. This feature constitutes a very useful and accurate way to calibrate both interparticle distance and size at the same time for a given dielectric environment. In this way, we provide a general and complete description of the far field optical properties of this particular nanostructure, which may be valuable for the design and development of plasmonic devices and optical tools and could serve as benchmark calculations for future comparisons with experiments.
Fil: Encina, Ezequiel Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Coronado, Eduardo A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
description In this work we study the far field optical properties of heterodimers composed of a silver and a gold nanosphere of the same size, by means of exact electrodynamics calculations based on the generalized multiparticle Mie theory. We analyze the effect of the incident polarization, nanosphere separation, radius and dielectric media on the optical response. The on resonance angular distribution of the scattered radiation is also analyzed. The nonsymmetrical features of this system allow us to evaluate and perform a careful examination of the contributions of absorption and scattering from each individual nanosphere to the total extinction of the system. At variance with the homodimer system, the heterodimer exhibits a simultaneous shift of two plasmonic resonances. This feature constitutes a very useful and accurate way to calibrate both interparticle distance and size at the same time for a given dielectric environment. In this way, we provide a general and complete description of the far field optical properties of this particular nanostructure, which may be valuable for the design and development of plasmonic devices and optical tools and could serve as benchmark calculations for future comparisons with experiments.
publishDate 2010
dc.date.none.fl_str_mv 2010-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/69959
Encina, Ezequiel Roberto; Coronado, Eduardo A.; On the far field optical properties of Ag-Au nanosphere pairs; American Chemical Society; Journal of Physical Chemistry C; 114; 39; 10-2010; 16278-16284
1932-7447
1932-7455
CONICET Digital
CONICET
url http://hdl.handle.net/11336/69959
identifier_str_mv Encina, Ezequiel Roberto; Coronado, Eduardo A.; On the far field optical properties of Ag-Au nanosphere pairs; American Chemical Society; Journal of Physical Chemistry C; 114; 39; 10-2010; 16278-16284
1932-7447
1932-7455
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jp105522b
info:eu-repo/semantics/altIdentifier/doi/10.1021/jp105522b
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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