The ultimate departure from geometrical optics: vortex optical field around plasmonic nanoparticle
The ultimate departure from geometrical optics: vortex optical field around plasmonic nanoparticle
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.
Bashevoy, M.V.
b9c00e78-fd59-4243-a369-f29dd08061fd
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
September 2006
Bashevoy, M.V.
b9c00e78-fd59-4243-a369-f29dd08061fd
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Bashevoy, M.V., Fedotov, V.A. and Zheludev, N.I.
(2006)
The ultimate departure from geometrical optics: vortex optical field around plasmonic nanoparticle.
QEP-17 at Photon06, Manchester, UK.
03 - 06 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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Published date: September 2006
Venue - Dates:
QEP-17 at Photon06, Manchester, UK, 2006-09-03 - 2006-09-06
Identifiers
Local EPrints ID: 57750
URI: http://eprints.soton.ac.uk/id/eprint/57750
PURE UUID: fb668ea9-a9b9-4c83-9db7-896983c4754f
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Date deposited: 11 Aug 2008
Last modified: 12 Dec 2021 02:45
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Contributors
Author:
M.V. Bashevoy
Author:
V.A. Fedotov
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