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) |
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| 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 |
| Item ID: | 57750 |
| Date Deposited: | 11 Aug 2008 |
| Last Modified: | 02 Mar 2012 12:12 |
| Contributors: | Bashevoy, M.V. (Author) Fedotov, V.A. (Author) Zheludev, N.I. (Author) |
| Date: | September 2006 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/57750 |
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