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. In, QEP-17 at Photon06, Manchester, UK, 04 - 07 Sep 2006.

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Description/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.

Item Type: Conference or Workshop Item (Paper)
Related URLs:
Subjects: Q Science
T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 57750
Date Deposited: 11 Aug 2008
Last Modified: 27 Mar 2014 18:40
URI: http://eprints.soton.ac.uk/id/eprint/57750

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