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Velocity distribution of gold nanoparticles trapped on an optical waveguide

Record type: Article

The velocity distributions of 250nm diameter gold nanospheres trapped in the evanescent fields of optical waveguides are studied. The automated analysis of a large number of particles and temporal frames is described. It is used to show that the envelope of the particles' speed follows the mode intensity profile of the evanescent field along a length of the waveguide and across its width. Modal beating in a dual-moded waveguide is mapped by analysis of nanoparticle distributions above the waveguide. A modal power of ~150mW at lambda=1066nm in a Cs+ ion-exchanged monomode waveguide results in speeds of up to 500µm/s.

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Citation

Hole, John Patrick, Wilkinson, James S, Grujic, Katarina and Hellesø, Olav Gaute (2005) Velocity distribution of gold nanoparticles trapped on an optical waveguide Optics Express, 13, (10), pp. 3896-3901. (doi:10.1364/OPEX.13.003896).

More information

Published date: May 2005
Keywords: image processing, image analysis, integrated optics, integrated optics devices, lasers and laser optics, trapping, optical devices, waveguides

Identifiers

Local EPrints ID: 21015
URI: http://eprints.soton.ac.uk/id/eprint/21015
ISSN: 1094-4087
PURE UUID: 5f7a9d6f-e929-4aa3-b9b6-aa2576ad1e3e
ORCID for James S Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

Catalogue record

Date deposited: 07 Mar 2006
Last modified: 17 Jul 2017 16:28

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Contributors

Author: John Patrick Hole
Author: Katarina Grujic
Author: Olav Gaute Hellesø

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