The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

Mapping gigahertz vibrations in a plasmonic–phononic crystal

Mapping gigahertz vibrations in a plasmonic–phononic crystal
Mapping gigahertz vibrations in a plasmonic–phononic crystal
We image the gigahertz vibrational modes of a plasmonic–phononic crystal at sub-micron resolution by means of an ultrafast optical technique, using a triangular array of spherical gold nanovoids as a sample. Light is strongly coupled to the plasmonic modes, which interact with the gigahertz phonons by a process akin to surface-enhanced stimulated Brillouin scattering. A marked enhancement in the observed optical reflectivity change at the centre of a void on phononic resonance is likely to be caused by this mechanism. By comparison with numerical simulations of the vibrational field, we identify resonant breathing deformations of the voids and elucidate the corresponding mode shapes. We thus establish scanned optomechanical probing of periodic plasmonic–phononic structures as a new means of investigating their coupled excitations on the nanoscale.








23013
Kelf, Timothy A.
97076129-a896-4fed-8646-0b6c54272a57
Hoshii, Wataru
a1bcdacd-b029-4dd1-a0c2-875b45292a51
Otsuka, Paul H.
f24ec3af-e408-46e1-a17a-89b29f9a2401
Sakuma, Hirotaka
2f9f4e14-80bb-40ce-8118-fb01693b627b
Veres, Istvan A.
163c5371-9e99-404a-b323-e923b67f00b9
Cole, Robin M.
29fa4536-7e68-43ee-acfa-673f0768af9c
Mahajan, Sumeet
b131f40a-479e-4432-b662-19d60d4069e9
Baumberg, Jeremy
44ce7dca-7035-4043-9a92-3e8a69a31f72
Tomoda, Motonobu
87f46fd8-a4a7-4b49-bc5f-8a6d3e5b6af8
Matsuda, Osamu
33a6004b-8262-404c-80db-4d4870f0af0c
Wright, Oliver B.
3f9ed3be-e416-4fb1-bf05-43b87257058d
Kelf, Timothy A.
97076129-a896-4fed-8646-0b6c54272a57
Hoshii, Wataru
a1bcdacd-b029-4dd1-a0c2-875b45292a51
Otsuka, Paul H.
f24ec3af-e408-46e1-a17a-89b29f9a2401
Sakuma, Hirotaka
2f9f4e14-80bb-40ce-8118-fb01693b627b
Veres, Istvan A.
163c5371-9e99-404a-b323-e923b67f00b9
Cole, Robin M.
29fa4536-7e68-43ee-acfa-673f0768af9c
Mahajan, Sumeet
b131f40a-479e-4432-b662-19d60d4069e9
Baumberg, Jeremy
44ce7dca-7035-4043-9a92-3e8a69a31f72
Tomoda, Motonobu
87f46fd8-a4a7-4b49-bc5f-8a6d3e5b6af8
Matsuda, Osamu
33a6004b-8262-404c-80db-4d4870f0af0c
Wright, Oliver B.
3f9ed3be-e416-4fb1-bf05-43b87257058d

Kelf, Timothy A., Hoshii, Wataru, Otsuka, Paul H., Sakuma, Hirotaka, Veres, Istvan A., Cole, Robin M., Mahajan, Sumeet, Baumberg, Jeremy, Tomoda, Motonobu, Matsuda, Osamu and Wright, Oliver B. (2013) Mapping gigahertz vibrations in a plasmonic–phononic crystal. New Journal of Physics, 15 (2), 23013. (doi:10.1088/1367-2630/15/2/023013).

Record type: Article

Abstract

We image the gigahertz vibrational modes of a plasmonic–phononic crystal at sub-micron resolution by means of an ultrafast optical technique, using a triangular array of spherical gold nanovoids as a sample. Light is strongly coupled to the plasmonic modes, which interact with the gigahertz phonons by a process akin to surface-enhanced stimulated Brillouin scattering. A marked enhancement in the observed optical reflectivity change at the centre of a void on phononic resonance is likely to be caused by this mechanism. By comparison with numerical simulations of the vibrational field, we identify resonant breathing deformations of the voids and elucidate the corresponding mode shapes. We thus establish scanned optomechanical probing of periodic plasmonic–phononic structures as a new means of investigating their coupled excitations on the nanoscale.








This record has no associated files available for download.

More information

Published date: February 2013
Organisations: Institute for Life Sciences, Molecular Diagnostics & Thereputics

Identifiers

Local EPrints ID: 350240
URI: http://eprints.soton.ac.uk/id/eprint/350240
PURE UUID: 88468e2c-ca1f-43f6-892c-2e9d2d503b28
ORCID for Sumeet Mahajan: ORCID iD orcid.org/0000-0001-8923-6666

Catalogue record

Date deposited: 20 Mar 2013 16:44
Last modified: 09 Nov 2021 03:16

Export record

Altmetrics

Contributors

Author: Timothy A. Kelf
Author: Wataru Hoshii
Author: Paul H. Otsuka
Author: Hirotaka Sakuma
Author: Istvan A. Veres
Author: Robin M. Cole
Author: Sumeet Mahajan ORCID iD
Author: Jeremy Baumberg
Author: Motonobu Tomoda
Author: Osamu Matsuda
Author: Oliver B. Wright

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 http://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.

×