Light-induced structural transformations and optical nonlinearity in gallium nano-films and self-assembled nanoparticles
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. In, ICONO 2001: XVII International Conference on Coherent and Nonlinear Optics, Minsk, BY, 26 Jun - 01 Jul 2001.
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Description/Abstract
We report observation of an optical nonlinearity in gallium nano-particles resulting from a light-induced structural transfomlation 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
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Additional Information: | Invited paper |
| Related URLs: | |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | University Structure - Pre August 2011 > School of Electronics and Computer Science University Structure - Pre August 2011 > Optoelectronics Research Centre |
| Item ID: | 78938 |
| Date Deposited: | 11 Mar 2010 |
| Last Modified: | 15 Aug 2012 13:39 |
| Contributors: | MacDonald, K.F. (Author) Fedotov, V.A. (Author) Stevens, G.C. (Author) Pochon, S. (Author) Emel'yanov, V.I. (Author) Brocklesby, W.S. (Author) Zheludev, N.I. (Author) |
| Date: | 2001 |
| Additional Information: | Invited paper |
| Status: | Unpublished |
| URI: | http://eprints.soton.ac.uk/id/eprint/78938 |
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