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The ultimate departure from geometrical optics: vortex optical field around plasmonic nanoparticle

Bashevoy, M.V., Fedotov, V.A. and Zheludev, N.I. (2006) The ultimate departure from geometrical optics: vortex optical field around plasmonic nanoparticle At QEP-17 at Photon06. 04 - 07 Sep 2006.

Record type: Conference or Workshop Item (Paper)

Abstract

Here we report on the discovery of an extreme deviation from geo'metrical optics: light interacting with a metallic nanoparticle, in the proximity of its plasmon resonance, follows curly trajectories with curvatures on a subwavelength scale, creating nanoscale optical vortices. We discuss how the appearance of these vortex structures is related to resonant increases in the absorption and scattering cross-sections of the nano-objects and weather the vortex structure could provide a natural feedback mechanism, thus creating a nano-scale analog of an optical resonator.

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More information

Published date: September 2006
Venue - Dates: QEP-17 at Photon06, 2006-09-04 - 2006-09-07

Identifiers

Local EPrints ID: 57750
URI: http://eprints.soton.ac.uk/id/eprint/57750
PURE UUID: fb668ea9-a9b9-4c83-9db7-896983c4754f

Catalogue record

Date deposited: 11 Aug 2008
Last modified: 17 Jul 2017 14:28

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Contributors

Author: M.V. Bashevoy
Author: V.A. Fedotov
Author: N.I. Zheludev

University divisions

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