High resolution imaging using nanoparticle based probes

Autores
Scarpettini, Alberto; Bragas, Andrea
Año de publicación
2018
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
New plasmonic probes, based on silica microspheres decorated with metal nanoparticles (Figure 1), are built and used to confine and enhance the electric field in their interaction with the sample, giving ultra-high optical resolution in a wide variety of samples [1]. The coverage and aggregation processes of nanoparticles on plane and spherical substrates were systematically studied [2]. These probes present red shifted resonances, dominated by the formation of small nanoparticle clusters [3]. Approach curves with the new probes show clearly field enhancement at very short probe-sample distances, and depend strongly on the incoming wavelength and polarization. Optical contrast was achieved in flat samples composed by materials of different dielectric constants, and images were obtained using optical feedback.
Fil: Universidad Tecnológica Nacional. Facultad Regional Delta
Materia
UTN
FRD
Plasmonic substrates
metallic nanostructures
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/3803
Acceder
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oai_identifier_str oai:ria.utn.edu.ar:20.500.12272/3803
network_acronym_str RIAUTN
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network_name_str Repositorio Institucional Abierto (UTN)
spelling High resolution imaging using nanoparticle based probesScarpettini, AlbertoBragas, AndreaUTNFRDPlasmonic substratesmetallic nanostructuresNew plasmonic probes, based on silica microspheres decorated with metal nanoparticles (Figure 1), are built and used to confine and enhance the electric field in their interaction with the sample, giving ultra-high optical resolution in a wide variety of samples [1]. The coverage and aggregation processes of nanoparticles on plane and spherical substrates were systematically studied [2]. These probes present red shifted resonances, dominated by the formation of small nanoparticle clusters [3]. Approach curves with the new probes show clearly field enhancement at very short probe-sample distances, and depend strongly on the incoming wavelength and polarization. Optical contrast was achieved in flat samples composed by materials of different dielectric constants, and images were obtained using optical feedback.Fil: Universidad Tecnológica Nacional. Facultad Regional Delta2019-07-04T20:50:16Z2019-07-04T20:50:16Z2018info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfPendientehttp://hdl.handle.net/20.500.12272/3803enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/El autorAtribución (by)Attribution-NonCommercial-NoDerivatives 4.0 Internacionalreponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2025-10-16T10:10:39Zoai:ria.utn.edu.ar:20.500.12272/3803instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2025-10-16 10:10:39.893Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv High resolution imaging using nanoparticle based probes
title High resolution imaging using nanoparticle based probes
spellingShingle High resolution imaging using nanoparticle based probes
Scarpettini, Alberto
UTN
FRD
Plasmonic substrates
metallic nanostructures
title_short High resolution imaging using nanoparticle based probes
title_full High resolution imaging using nanoparticle based probes
title_fullStr High resolution imaging using nanoparticle based probes
title_full_unstemmed High resolution imaging using nanoparticle based probes
title_sort High resolution imaging using nanoparticle based probes
dc.creator.none.fl_str_mv Scarpettini, Alberto
Bragas, Andrea
author Scarpettini, Alberto
author_facet Scarpettini, Alberto
Bragas, Andrea
author_role author
author2 Bragas, Andrea
author2_role author
dc.subject.none.fl_str_mv UTN
FRD
Plasmonic substrates
metallic nanostructures
topic UTN
FRD
Plasmonic substrates
metallic nanostructures
dc.description.none.fl_txt_mv New plasmonic probes, based on silica microspheres decorated with metal nanoparticles (Figure 1), are built and used to confine and enhance the electric field in their interaction with the sample, giving ultra-high optical resolution in a wide variety of samples [1]. The coverage and aggregation processes of nanoparticles on plane and spherical substrates were systematically studied [2]. These probes present red shifted resonances, dominated by the formation of small nanoparticle clusters [3]. Approach curves with the new probes show clearly field enhancement at very short probe-sample distances, and depend strongly on the incoming wavelength and polarization. Optical contrast was achieved in flat samples composed by materials of different dielectric constants, and images were obtained using optical feedback.
Fil: Universidad Tecnológica Nacional. Facultad Regional Delta
description New plasmonic probes, based on silica microspheres decorated with metal nanoparticles (Figure 1), are built and used to confine and enhance the electric field in their interaction with the sample, giving ultra-high optical resolution in a wide variety of samples [1]. The coverage and aggregation processes of nanoparticles on plane and spherical substrates were systematically studied [2]. These probes present red shifted resonances, dominated by the formation of small nanoparticle clusters [3]. Approach curves with the new probes show clearly field enhancement at very short probe-sample distances, and depend strongly on the incoming wavelength and polarization. Optical contrast was achieved in flat samples composed by materials of different dielectric constants, and images were obtained using optical feedback.
publishDate 2018
dc.date.none.fl_str_mv 2018
2019-07-04T20:50:16Z
2019-07-04T20:50:16Z
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv Pendiente
http://hdl.handle.net/20.500.12272/3803
identifier_str_mv Pendiente
url http://hdl.handle.net/20.500.12272/3803
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
El autor
Atribución (by)
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
El autor
Atribución (by)
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
_version_ 1846146081729019904
score 12.712165

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