Plasmonic band gaps and trapped plasmons on nanostructured metal surfaces
Plasmonic band gaps and trapped plasmons on nanostructured metal surfaces
Nanostructured metal surfaces comprised of periodically arranged spherical voids are grown by electrochemical deposition through a self-assembled template. Detailed measurements of the angle- and orientation-dependent reflectivity reveal the spectral dispersion, from which we identify the presence of both delocalized Bragg and localized Mie plasmons. These couple strongly producing bonding and antibonding mixed plasmons with anomalous dispersion properties. Appropriate plasmon engineering of the void morphology selects the plasmon spatial and spectral positions, allowing these plasmonic crystal films to be optimized for a wide range of sensing applications.
116802-[4pp]
Kelf, T.A.
f28ac06f-3dda-4ad7-ac70-470111d46f64
Sugawara, Y.
585b662a-5e52-4e03-ba20-8a9f602fcb4b
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Abdelsalam, M.
19db11cd-6edc-4f00-abd0-ff307e986b35
Bartlett, P.N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
9 September 2005
Kelf, T.A.
f28ac06f-3dda-4ad7-ac70-470111d46f64
Sugawara, Y.
585b662a-5e52-4e03-ba20-8a9f602fcb4b
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Abdelsalam, M.
19db11cd-6edc-4f00-abd0-ff307e986b35
Bartlett, P.N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Kelf, T.A., Sugawara, Y., Baumberg, J.J., Abdelsalam, M. and Bartlett, P.N.
(2005)
Plasmonic band gaps and trapped plasmons on nanostructured metal surfaces.
Physical Review Letters, 95 (11), .
(doi:10.1103/PhysRevLett.95.116802).
Abstract
Nanostructured metal surfaces comprised of periodically arranged spherical voids are grown by electrochemical deposition through a self-assembled template. Detailed measurements of the angle- and orientation-dependent reflectivity reveal the spectral dispersion, from which we identify the presence of both delocalized Bragg and localized Mie plasmons. These couple strongly producing bonding and antibonding mixed plasmons with anomalous dispersion properties. Appropriate plasmon engineering of the void morphology selects the plasmon spatial and spectral positions, allowing these plasmonic crystal films to be optimized for a wide range of sensing applications.
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Published date: 9 September 2005
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Local EPrints ID: 57347
URI: http://eprints.soton.ac.uk/id/eprint/57347
ISSN: 0031-9007
PURE UUID: 869919cd-e549-4969-845d-9ecf6dbd3a46
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Date deposited: 14 Aug 2008
Last modified: 16 Mar 2024 02:43
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Contributors
Author:
T.A. Kelf
Author:
Y. Sugawara
Author:
J.J. Baumberg
Author:
M. Abdelsalam
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