The University of Southampton
University of Southampton Institutional Repository

Excitation of confined modes on particle arrays

Excitation of confined modes on particle arrays
Excitation of confined modes on particle arrays
We describe both theoretically and experimentally the existence and excitation of confined modes in planar arrays of gold nanodisks. Ordered 2D lattices of monodispersive nanoparticles are manufactured, embedded in a silica matrix, and exposed to evanescent prism-coupling illumination, leading to dark features in the reflectivity, which signal the presence of confined modes guided along the arrays. We find remarkable agreement between theory and experiment in the frequency-momentum dispersion of the resonances. Direct excitation of these modes reveals long propagation distances and deep extinction features. This combined experimental and theoretical characterization of guided modes shows a good understanding of the optical response of metallic particles arrays, which can be beneficial in future designs of optical-signal and distant-sensing applications.
1094-4087
5636-5642
Bendaña, X.M.
693b973e-a004-44a6-834e-8e15c654b7e8
Lozano, G.
0f1e493a-3a77-45ff-818a-8fe90f28605a
Pirruccio, G.
ca31a1e9-e0cc-4fec-8d74-6ce608e01aff
Gómez Rivas, J.
3051d9f6-dc75-43a3-8898-86a8d0e7470c
García de Abajo, F.J.
68958b41-966f-49ef-9578-d0ffa446b33e
Bendaña, X.M.
693b973e-a004-44a6-834e-8e15c654b7e8
Lozano, G.
0f1e493a-3a77-45ff-818a-8fe90f28605a
Pirruccio, G.
ca31a1e9-e0cc-4fec-8d74-6ce608e01aff
Gómez Rivas, J.
3051d9f6-dc75-43a3-8898-86a8d0e7470c
García de Abajo, F.J.
68958b41-966f-49ef-9578-d0ffa446b33e

Bendaña, X.M., Lozano, G., Pirruccio, G., Gómez Rivas, J. and García de Abajo, F.J. (2013) Excitation of confined modes on particle arrays. Optics Express, 21 (5), 5636-5642. (doi:10.1364/OE.21.005636).

Record type: Article

Abstract

We describe both theoretically and experimentally the existence and excitation of confined modes in planar arrays of gold nanodisks. Ordered 2D lattices of monodispersive nanoparticles are manufactured, embedded in a silica matrix, and exposed to evanescent prism-coupling illumination, leading to dark features in the reflectivity, which signal the presence of confined modes guided along the arrays. We find remarkable agreement between theory and experiment in the frequency-momentum dispersion of the resonances. Direct excitation of these modes reveals long propagation distances and deep extinction features. This combined experimental and theoretical characterization of guided modes shows a good understanding of the optical response of metallic particles arrays, which can be beneficial in future designs of optical-signal and distant-sensing applications.

Full text not available from this repository.

More information

Published date: 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 356330
URI: https://eprints.soton.ac.uk/id/eprint/356330
ISSN: 1094-4087
PURE UUID: 2e025f6a-5aa7-4150-bf9a-e79bf5ecd52e

Catalogue record

Date deposited: 12 Sep 2013 15:28
Last modified: 18 Jul 2017 03:39

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×