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Optical modulation of surface plasmon-polariton coupling in a gallium/aluminium composite

Optical modulation of surface plasmon-polariton coupling in a gallium/aluminium composite
Optical modulation of surface plasmon-polariton coupling in a gallium/aluminium composite
We report on the use of a reversible nanoscale light-induced structural transformation in a new type of gallium/aluminium composite material interfaced with a dielectric to control the efficiency with which light is coupled to a surface plasmon-polariton wave at the interface, and thereby the optical reflectivity of the interface. An optical fluence of just a few mJ/cm is sufficient to significantly modulate the composite's dielectric properties and thereby to provide high-contrast nonlinear optical and plasmonic switching functionality on a nano- to microsecond timescale, for signals in the visible and near infrared wavelength ranges.
0030-4018
207-210
MacDonald, K.F.
76c84116-aad1-4973-b917-7ca63935dba5
Krasavin, A.V.
2026f437-6d31-4ca1-a07f-52adc7aa24a4
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
MacDonald, K.F.
76c84116-aad1-4973-b917-7ca63935dba5
Krasavin, A.V.
2026f437-6d31-4ca1-a07f-52adc7aa24a4
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

MacDonald, K.F., Krasavin, A.V. and Zheludev, N.I. (2007) Optical modulation of surface plasmon-polariton coupling in a gallium/aluminium composite. Optics Communications, 278 (1), 207-210. (doi:10.1016/j.optcom.2007.06.010).

Record type: Article

Abstract

We report on the use of a reversible nanoscale light-induced structural transformation in a new type of gallium/aluminium composite material interfaced with a dielectric to control the efficiency with which light is coupled to a surface plasmon-polariton wave at the interface, and thereby the optical reflectivity of the interface. An optical fluence of just a few mJ/cm is sufficient to significantly modulate the composite's dielectric properties and thereby to provide high-contrast nonlinear optical and plasmonic switching functionality on a nano- to microsecond timescale, for signals in the visible and near infrared wavelength ranges.

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Published date: October 2007

Identifiers

Local EPrints ID: 48348
URI: https://eprints.soton.ac.uk/id/eprint/48348
ISSN: 0030-4018
PURE UUID: 0aa90e0c-baaf-4d67-beac-6af510dcb824
ORCID for K.F. MacDonald: ORCID iD orcid.org/0000-0002-3877-2976
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 14 Sep 2007
Last modified: 20 Jul 2019 01:22

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Contributors

Author: K.F. MacDonald ORCID iD
Author: A.V. Krasavin
Author: N.I. Zheludev ORCID iD

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