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Structural phase transition as the mechanism of an optical nonlinearity in a nanoparticle film

Structural phase transition as the mechanism of an optical nonlinearity in a nanoparticle film
Structural phase transition as the mechanism of an optical nonlinearity in a nanoparticle film
Optical control of phase coexistence, previously used as a mechanism for achieving a nonlinearity at planar gallium/glass interfaces, can be exploited as a nonlinear response mechanism in a metallic nanoparticle film. Experimental measurements of the reflective and transmissive nonlinear response of a gallium nanoparticle film, manufactured on the tip of an optical fibre using the light-assisted self-assembly technique, are shown to be consistent with an effective medium theory for the optical properties of a layer of closely packed nanoshells comprising a core and surface layer in two different structural phases of the metal.
Aggregated thin films, Nanoparticles, Optical properties, Structural transitions, Phase coexistence
1741-3567
S241-S243
Fedotov, V. A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
MacDonald, K. F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, N. I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Fedotov, V. A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
MacDonald, K. F.
76c84116-aad1-4973-b917-7ca63935dba5
Zheludev, N. I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Fedotov, V. A., MacDonald, K. F. and Zheludev, N. I. (2005) Structural phase transition as the mechanism of an optical nonlinearity in a nanoparticle film. Journal of Optics A: Pure and Applied Optics, 7 (2), S241-S243. (doi:10.1088/1464-4258/7/2/032).

Record type: Article

Abstract

Optical control of phase coexistence, previously used as a mechanism for achieving a nonlinearity at planar gallium/glass interfaces, can be exploited as a nonlinear response mechanism in a metallic nanoparticle film. Experimental measurements of the reflective and transmissive nonlinear response of a gallium nanoparticle film, manufactured on the tip of an optical fibre using the light-assisted self-assembly technique, are shown to be consistent with an effective medium theory for the optical properties of a layer of closely packed nanoshells comprising a core and surface layer in two different structural phases of the metal.

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More information

Published date: 20 January 2005
Keywords: Aggregated thin films, Nanoparticles, Optical properties, Structural transitions, Phase coexistence

Identifiers

Local EPrints ID: 28685
URI: https://eprints.soton.ac.uk/id/eprint/28685
ISSN: 1741-3567
PURE UUID: 3b9aab8d-62a2-456a-908e-7721384fbcca
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: 05 May 2006
Last modified: 20 Jul 2019 01:22

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Contributors

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

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