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Optical switching at ZnSe–Ga interfaces via nanoscale light-induced metallisation

Optical switching at ZnSe–Ga interfaces via nanoscale light-induced metallisation
Optical switching at ZnSe–Ga interfaces via nanoscale light-induced metallisation
A structural transformation induced by optical impulse excitation of only a few mJ/cm² fluence affecting the nanoscale surface melt layer of gallium at a ZnSe–gallium interface leads to a fast, substantial and fully reversible change in reflectivity of up to 50%. Recovery occurs within a few ?s after excitation is withdrawn and less than 1 ?s at temperatures more than 4 K below gallium's melting point.
Nonlinear optics, Phase transition, Gallium
0030-4018
340-343
Woodford, M.
89f6b04c-0b02-47e6-8f27-264fe74fb9fd
MacDonald, K. F.
76c84116-aad1-4973-b917-7ca63935dba5
Stevens, G. C.
1afb61b6-e12f-4176-8801-68a0a83a4aee
Zheludev, N. I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Woodford, M.
89f6b04c-0b02-47e6-8f27-264fe74fb9fd
MacDonald, K. F.
76c84116-aad1-4973-b917-7ca63935dba5
Stevens, G. C.
1afb61b6-e12f-4176-8801-68a0a83a4aee
Zheludev, N. I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Woodford, M., MacDonald, K. F., Stevens, G. C. and Zheludev, N. I. (2005) Optical switching at ZnSe–Ga interfaces via nanoscale light-induced metallisation. Optics Communications, 254 (4-6), 340-343. (doi:10.1016/j.optcom.2005.05.047).

Record type: Article

Abstract

A structural transformation induced by optical impulse excitation of only a few mJ/cm² fluence affecting the nanoscale surface melt layer of gallium at a ZnSe–gallium interface leads to a fast, substantial and fully reversible change in reflectivity of up to 50%. Recovery occurs within a few ?s after excitation is withdrawn and less than 1 ?s at temperatures more than 4 K below gallium's melting point.

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More information

Published date: 15 October 2005
Keywords: Nonlinear optics, Phase transition, Gallium

Identifiers

Local EPrints ID: 28650
URI: https://eprints.soton.ac.uk/id/eprint/28650
ISSN: 0030-4018
PURE UUID: 3e510345-d22b-45cb-8e88-dd285146f9c0
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: 03 May 2006
Last modified: 20 Jul 2019 01:22

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Contributors

Author: M. Woodford
Author: K. F. MacDonald ORCID iD
Author: G. C. Stevens
Author: N. I. Zheludev ORCID iD

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