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Light-induced structural transformations and optical nonlinearity in gallium nano-films and self-assembled nanoparticles

Light-induced structural transformations and optical nonlinearity in gallium nano-films and self-assembled nanoparticles
Light-induced structural transformations and optical nonlinearity in gallium nano-films and self-assembled nanoparticles
We report observation of an optical nonlinearity in gallium nano-particles resulting from a light-induced structural transformation in the metal which is known for its incredible polymorphism. A freshly cleaved single-mode optical fiber was put into a vacuum chamber and cooled to 100 K. The end of the fiber was exposed to a beam of gallium atoms, leading to the steady deposition of a gallium layer, thus forming a mirror made of just a few picograms of material. The gallium forms nano-particles by self-organization. These particles are relatively uniform in size, with a diameter typically between 80 and 200 nm, which depends on the thickness of the gallium film from which they formed.
MacDonald, K.F.
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Fedotov, V.A.
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Stevens, G.C.
69d3fdbc-bb4c-4e7e-b066-2ec4f7f6986d
Pochon, S.
8839cdca-fe45-4dee-b102-c75003565a84
Emel'yanov, V.I.
c48928d6-e942-4ab6-a8f4-4f118073b953
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
MacDonald, K.F.
76c84116-aad1-4973-b917-7ca63935dba5
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Stevens, G.C.
69d3fdbc-bb4c-4e7e-b066-2ec4f7f6986d
Pochon, S.
8839cdca-fe45-4dee-b102-c75003565a84
Emel'yanov, V.I.
c48928d6-e942-4ab6-a8f4-4f118073b953
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

MacDonald, K.F., Fedotov, V.A., Stevens, G.C., Pochon, S., Emel'yanov, V.I., Brocklesby, W.S. and Zheludev, N.I. (2001) Light-induced structural transformations and optical nonlinearity in gallium nano-films and self-assembled nanoparticles. ICONO 2001: XVII International Conference on Coherent and Nonlinear Optics, Minsk, Belarus. 25 - 30 Jun 2001.

Record type: Conference or Workshop Item (Paper)

Abstract

We report observation of an optical nonlinearity in gallium nano-particles resulting from a light-induced structural transformation in the metal which is known for its incredible polymorphism. A freshly cleaved single-mode optical fiber was put into a vacuum chamber and cooled to 100 K. The end of the fiber was exposed to a beam of gallium atoms, leading to the steady deposition of a gallium layer, thus forming a mirror made of just a few picograms of material. The gallium forms nano-particles by self-organization. These particles are relatively uniform in size, with a diameter typically between 80 and 200 nm, which depends on the thickness of the gallium film from which they formed.

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More information

Published date: 2001
Additional Information: Invited paper
Venue - Dates: ICONO 2001: XVII International Conference on Coherent and Nonlinear Optics, Minsk, Belarus, 2001-06-25 - 2001-06-30

Identifiers

Local EPrints ID: 78938
URI: http://eprints.soton.ac.uk/id/eprint/78938
PURE UUID: 1ce44651-6bf6-455e-9e81-1049a3f8a146
ORCID for K.F. MacDonald: ORCID iD orcid.org/0000-0002-3877-2976
ORCID for W.S. Brocklesby: ORCID iD orcid.org/0000-0002-2123-6712
ORCID for N.I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

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Date deposited: 11 Mar 2010
Last modified: 11 Dec 2021 03:32

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Contributors

Author: K.F. MacDonald ORCID iD
Author: V.A. Fedotov
Author: G.C. Stevens
Author: S. Pochon
Author: V.I. Emel'yanov
Author: W.S. Brocklesby ORCID iD
Author: N.I. Zheludev ORCID iD

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