Local and anisotropic excitation of surface plasmon polaritons by semiconductor nanowires
Local and anisotropic excitation of surface plasmon polaritons by semiconductor nanowires
We demonstrate a novel functionality of semiconductor nanowires as local sources for surface plasmon polaritons (SPPs). Photoexcited semiconductor nanowires decay non-radiatively exciting SPPs when they are on top of a metallic surface. We have investigated the anisotropic excitation of SPPs by nanowires by placing individual InP nanowires inside gold bullseye gratings. The gratings serve to couple SPPs to free space radiation that is detected with a scanning confocal microscope. The circular geometry of the grating allows to conclude that SPPs are preferentially generated in the direction along the nanowire axis.
5013-5021
Rümke, T.M.
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Sánchez-Gil, J.A.
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Muskens, O.L.
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Borgström, M.T.
30744442-27ef-4fd4-b679-e96e8b1ba1fd
Bakkers, E.P.
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Gómez Rivas, J.
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March 2008
Rümke, T.M.
d6b9dbf2-8fb2-4069-97e8-d44580c1f043
Sánchez-Gil, J.A.
26745ee4-ed41-4bc6-908e-e4906d33a873
Muskens, O.L.
2284101a-f9ef-4d79-8951-a6cda5bfc7f9
Borgström, M.T.
30744442-27ef-4fd4-b679-e96e8b1ba1fd
Bakkers, E.P.
0707eca8-86af-42cc-8d04-c8d210b4bc78
Gómez Rivas, J.
3051d9f6-dc75-43a3-8898-86a8d0e7470c
Rümke, T.M., Sánchez-Gil, J.A., Muskens, O.L., Borgström, M.T., Bakkers, E.P. and Gómez Rivas, J.
(2008)
Local and anisotropic excitation of surface plasmon polaritons by semiconductor nanowires.
Optics Express, 16 (7), .
(doi:10.1364/OE.16.005013).
Abstract
We demonstrate a novel functionality of semiconductor nanowires as local sources for surface plasmon polaritons (SPPs). Photoexcited semiconductor nanowires decay non-radiatively exciting SPPs when they are on top of a metallic surface. We have investigated the anisotropic excitation of SPPs by nanowires by placing individual InP nanowires inside gold bullseye gratings. The gratings serve to couple SPPs to free space radiation that is detected with a scanning confocal microscope. The circular geometry of the grating allows to conclude that SPPs are preferentially generated in the direction along the nanowire axis.
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Published date: March 2008
Identifiers
Local EPrints ID: 144335
URI: http://eprints.soton.ac.uk/id/eprint/144335
ISSN: 1094-4087
PURE UUID: 665d404a-b077-4a38-846f-1c455f5719e6
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Date deposited: 14 Apr 2010 10:35
Last modified: 14 Mar 2024 02:55
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Contributors
Author:
T.M. Rümke
Author:
J.A. Sánchez-Gil
Author:
M.T. Borgström
Author:
E.P. Bakkers
Author:
J. Gómez Rivas
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