High resolution imaging using nanoparticle based probes

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Scarpettini, Alberto, Bragas, Andrea
Formato: Documento de conferencia publishedVersion
Lenguaje:Inglés
Publicado: 2019
Materias:
UTN
FRD
Plasmonic substrates
metallic nanostructures
Acceso en línea:http://hdl.handle.net/20.500.12272/3803
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-3803
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic UTN
FRD
Plasmonic substrates
metallic nanostructures
spellingShingle UTN
FRD
Plasmonic substrates
metallic nanostructures
Scarpettini, Alberto
Bragas, Andrea
High resolution imaging using nanoparticle based probes
topic_facet UTN
FRD
Plasmonic substrates
metallic nanostructures
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.
format Documento de conferencia
publishedVersion
Documento de conferencia
author Scarpettini, Alberto
Bragas, Andrea
author_facet Scarpettini, Alberto
Bragas, Andrea
author_sort Scarpettini, Alberto
title High resolution imaging using nanoparticle based probes
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
publishDate 2019
url http://hdl.handle.net/20.500.12272/3803
work_keys_str_mv AT scarpettinialberto highresolutionimagingusingnanoparticlebasedprobes
AT bragasandrea highresolutionimagingusingnanoparticlebasedprobes
bdutipo_str Repositorios
_version_ 1764820552349908993

Ejemplares similares