Spatial distribution of optical near-fields in plasmonic gold sphere segment voids

We present a comprehensive experimental and computational study on the electromagnetic field distribution in sphere segment void arrays. Surface plasmon polaritons can be excited in these void arrays, resulting in greatly enhanced electromagnetic fields. With the scanning near-field optical microsco...

Descripción completa

Detalles Bibliográficos
Autores: Schmidt, M., Tognalli, Nicolas Gerardo, Otte, M. A., Alonso, M. I., Sepúlveda, B., Fainstein, Alejandro, Goñi, A. R.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/17690
Acceso en línea:http://hdl.handle.net/11336/17690
Access Level:acceso abierto
Palabra clave:Plasmones
Cavidades
Snom
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
id AR_48d845f13e4e9e8cdc0a43d4a37d64da
oai_identifier_str oai:ri.conicet.gov.ar:11336/17690
network_acronym_str AR
network_name_str Argentina
repository_id_str
spelling Spatial distribution of optical near-fields in plasmonic gold sphere segment voidsSchmidt, M.Tognalli, Nicolas GerardoOtte, M. A.Alonso, M. I.Sepúlveda, B.Fainstein, AlejandroGoñi, A. R.PlasmonesCavidadesSnomhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a comprehensive experimental and computational study on the electromagnetic field distribution in sphere segment void arrays. Surface plasmon polaritons can be excited in these void arrays, resulting in greatly enhanced electromagnetic fields. With the scanning near-field optical microscope (SNOM) we are able to measure the electromagnetic field distribution at the sample surface. For this purpose, an array of relatively large voids with a sphere diameter of 900 nm was fabricated, allowing for an easy access of the scanning glass-fibre tip and yielding very detailed scans. Complementary, finite-difference time-domain (FDTD) calculations on a complete void array have been performed and compared with the SNOM intensity maps and experimental reflectivity data. We show in a direct way both the existence of extended and localised modes in the Au void array for three different void depths. We also show and discuss the changes that the modes undergo for the different void depths and excitation wavelengths. Moreover, since the simulations were performed for two different void geometries, one containing perfectly spherical void surfaces and another more realistic one, which considers the presence of interstitial wall holes and other imperfections, as observed in scanning electron micrographs, we were able to determine by comparison with the experiment under which conditions an array of idealised sphere segment voids is a meaningful model. This demonstrates that both SNOM and FDTD simulations are powerful tools for understanding the plasmonic response of metallic nanostructures, thus enabling, for instance, a design for applications in ultra-sensitive optical detection.Fil: Schmidt, M.. Consejo Superior de Investigaciones Cientificas; EspañaFil: Tognalli, Nicolas Gerardo. Consejo Superior de Investigaciones Cientificas; España. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Otte, M. A.. Consejo Superior de Investigaciones Cientificas; EspañaFil: Alonso, M. I.. Consejo Superior de Investigaciones Cientificas; EspañaFil: Sepúlveda, B.. Consejo Superior de Investigaciones Cientificas; EspañaFil: Fainstein, Alejandro. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Goñi, A. R.. Consejo Superior de Investigaciones Cientificas; España. Institució Catalana de Recerca i Estudis Avancats; EspañaSpringer2013-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17690Schmidt, M.; Tognalli, Nicolas Gerardo; Otte, M. A.; Alonso, M. I.; Sepúlveda, B.; et al.; Spatial distribution of optical near-fields in plasmonic gold sphere segment voids; Springer; Plasmonics; 8; 2; 6-2013; 921-9301557-19551557-1963enginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s11468-013-9491-4info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs11468-013-9491-4info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:17:51Zoai:ri.conicet.gov.ar:11336/17690instacron: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:34982024-05-08 14:17:51.331CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spatial distribution of optical near-fields in plasmonic gold sphere segment voids
title Spatial distribution of optical near-fields in plasmonic gold sphere segment voids
spellingShingle Spatial distribution of optical near-fields in plasmonic gold sphere segment voids
Schmidt, M.
Plasmones
Cavidades
Snom
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
title_short Spatial distribution of optical near-fields in plasmonic gold sphere segment voids
title_full Spatial distribution of optical near-fields in plasmonic gold sphere segment voids
title_fullStr Spatial distribution of optical near-fields in plasmonic gold sphere segment voids
title_full_unstemmed Spatial distribution of optical near-fields in plasmonic gold sphere segment voids
title_sort Spatial distribution of optical near-fields in plasmonic gold sphere segment voids
dc.creator.none.fl_str_mv Schmidt, M.
Tognalli, Nicolas Gerardo
Otte, M. A.
Alonso, M. I.
Sepúlveda, B.
Fainstein, Alejandro
Goñi, A. R.
author Schmidt, M.
author_facet Schmidt, M.
Tognalli, Nicolas Gerardo
Otte, M. A.
Alonso, M. I.
Sepúlveda, B.
Fainstein, Alejandro
Goñi, A. R.
author_role author
author2 Tognalli, Nicolas Gerardo
Otte, M. A.
Alonso, M. I.
Sepúlveda, B.
Fainstein, Alejandro
Goñi, A. R.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Plasmones
Cavidades
Snom
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
topic Plasmones
Cavidades
Snom
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
description We present a comprehensive experimental and computational study on the electromagnetic field distribution in sphere segment void arrays. Surface plasmon polaritons can be excited in these void arrays, resulting in greatly enhanced electromagnetic fields. With the scanning near-field optical microscope (SNOM) we are able to measure the electromagnetic field distribution at the sample surface. For this purpose, an array of relatively large voids with a sphere diameter of 900 nm was fabricated, allowing for an easy access of the scanning glass-fibre tip and yielding very detailed scans. Complementary, finite-difference time-domain (FDTD) calculations on a complete void array have been performed and compared with the SNOM intensity maps and experimental reflectivity data. We show in a direct way both the existence of extended and localised modes in the Au void array for three different void depths. We also show and discuss the changes that the modes undergo for the different void depths and excitation wavelengths. Moreover, since the simulations were performed for two different void geometries, one containing perfectly spherical void surfaces and another more realistic one, which considers the presence of interstitial wall holes and other imperfections, as observed in scanning electron micrographs, we were able to determine by comparison with the experiment under which conditions an array of idealised sphere segment voids is a meaningful model. This demonstrates that both SNOM and FDTD simulations are powerful tools for understanding the plasmonic response of metallic nanostructures, thus enabling, for instance, a design for applications in ultra-sensitive optical detection.
publishDate 2013
dc.date.none.fl_str_mv 2013-06
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/11336/17690
Schmidt, M.; Tognalli, Nicolas Gerardo; Otte, M. A.; Alonso, M. I.; Sepúlveda, B.; et al.; Spatial distribution of optical near-fields in plasmonic gold sphere segment voids; Springer; Plasmonics; 8; 2; 6-2013; 921-930
1557-1955
1557-1963
url http://hdl.handle.net/11336/17690
identifier_str_mv Schmidt, M.; Tognalli, Nicolas Gerardo; Otte, M. A.; Alonso, M. I.; Sepúlveda, B.; et al.; Spatial distribution of optical near-fields in plasmonic gold sphere segment voids; Springer; Plasmonics; 8; 2; 6-2013; 921-930
1557-1955
1557-1963
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s11468-013-9491-4
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs11468-013-9491-4
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
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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
_version_ 1799196183593222144
score 15.812429

Similares en LA Referencia