The University of Southampton
University of Southampton Institutional Repository

"Digitally" addressable focusing of light into a subwavelength hot spot

"Digitally" addressable focusing of light into a subwavelength hot spot
"Digitally" addressable focusing of light into a subwavelength hot spot
We show that a plasmonic metamaterial can act as a far-field to near-field transformer that focuses a free-space beam of light into a subwavelength energy hot spot at a prescribed location with a spot size only a small fraction of the wavelength. The hot spot position on the metamaterial can be prescribed and moved at will from one metamolecule of the array to another in a "digital" fashion simply by modulating the input phase profile, thus providing new opportunities for imaging and optical data processing.
light localization, metamaterials, coherent control, nanophotonics
1530-6984
2728-2731
Kao, T.S.
68b546f6-a0c8-455e-928a-5876de01a87d
Rogers, E.T.F.
b92cc8ab-0d91-4b2e-b5c7-8a2f490a36a2
Ou, Jun-Yu
3fb703e3-b222-46d2-b4ee-75f296d9d64d
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Kao, T.S.
68b546f6-a0c8-455e-928a-5876de01a87d
Rogers, E.T.F.
b92cc8ab-0d91-4b2e-b5c7-8a2f490a36a2
Ou, Jun-Yu
3fb703e3-b222-46d2-b4ee-75f296d9d64d
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Kao, T.S., Rogers, E.T.F., Ou, Jun-Yu and Zheludev, N.I. (2012) "Digitally" addressable focusing of light into a subwavelength hot spot. Nano Letters, 12 (6), 2728-2731. (doi:10.1021/nl2043437).

Record type: Article

Abstract

We show that a plasmonic metamaterial can act as a far-field to near-field transformer that focuses a free-space beam of light into a subwavelength energy hot spot at a prescribed location with a spot size only a small fraction of the wavelength. The hot spot position on the metamaterial can be prescribed and moved at will from one metamolecule of the array to another in a "digital" fashion simply by modulating the input phase profile, thus providing new opportunities for imaging and optical data processing.

This record has no associated files available for download.

More information

Published date: 2012
Keywords: light localization, metamaterials, coherent control, nanophotonics
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 341125
URI: http://eprints.soton.ac.uk/id/eprint/341125
ISSN: 1530-6984
PURE UUID: c9b87865-461f-4bd6-bf8b-3d1f12fc9e81
ORCID for Jun-Yu Ou: ORCID iD orcid.org/0000-0001-8028-6130
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 16 Jul 2012 09:20
Last modified: 15 Mar 2024 03:39

Export record

Altmetrics

Contributors

Author: T.S. Kao
Author: E.T.F. Rogers
Author: Jun-Yu Ou ORCID iD
Author: N.I. Zheludev ORCID iD

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.

×