Localised and delocalised plasmons in metallic nano-voids
Localised and delocalised plasmons in metallic nano-voids
Nanostructured metal films 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 for different sample geometries reveal the spectral dispersion of several different types of surface plasmon modes. The dependence of the energies of both delocalized Bragg and localized Mie plasmons on the void goemetry is presented, along with theoretical models to explain some of these experimental findings. Strong interactions between the different plasmon modes as well as other mixing processes are identified. Understanding such plasmonic crystals allows for the engineering of devices tailored for a wide range of sensing application.
plasmons, nanostructure, metal, localised bandgap, plasmonic nanophotonics
245415-[12pp]
Kelf, T.A.
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Sugawara, Y.
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Cole, R.M.
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Baumberg, J.J.
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Abdelsalam, M.E.
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Cintra, S.
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Mahajan, S.
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Russell, A.E.
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13 December 2006
Kelf, T.A.
f28ac06f-3dda-4ad7-ac70-470111d46f64
Sugawara, Y.
585b662a-5e52-4e03-ba20-8a9f602fcb4b
Cole, R.M.
8e80533f-f2f5-4b8e-bd02-d9807568728b
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Abdelsalam, M.E.
94ec836b-cf24-4b21-9a6c-c3436b8ef3b2
Cintra, S.
2c492fe9-a765-490e-9570-d2617c154245
Mahajan, S.
b131f40a-479e-4432-b662-19d60d4069e9
Russell, A.E.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Kelf, T.A., Sugawara, Y., Cole, R.M., Baumberg, J.J., Abdelsalam, M.E., Cintra, S., Mahajan, S. and Russell, A.E.
(2006)
Localised and delocalised plasmons in metallic nano-voids.
Physical Review B, 74 (24), .
(doi:10.1103/PhysRevB.74.245415).
Abstract
Nanostructured metal films 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 for different sample geometries reveal the spectral dispersion of several different types of surface plasmon modes. The dependence of the energies of both delocalized Bragg and localized Mie plasmons on the void goemetry is presented, along with theoretical models to explain some of these experimental findings. Strong interactions between the different plasmon modes as well as other mixing processes are identified. Understanding such plasmonic crystals allows for the engineering of devices tailored for a wide range of sensing application.
Text
PRB'06_nanovoids.pdf
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Published date: 13 December 2006
Keywords:
plasmons, nanostructure, metal, localised bandgap, plasmonic nanophotonics
Organisations:
Chemistry, Institute for Life Sciences, Quantum, Light & Matter Group
Identifiers
Local EPrints ID: 42941
URI: http://eprints.soton.ac.uk/id/eprint/42941
ISSN: 1550-235X
PURE UUID: 55de3fed-fa1f-4761-b7f4-0ba2ffadd27f
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Date deposited: 03 Jan 2007
Last modified: 16 Mar 2024 03:53
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Contributors
Author:
T.A. Kelf
Author:
Y. Sugawara
Author:
R.M. Cole
Author:
J.J. Baumberg
Author:
M.E. Abdelsalam
Author:
S. Cintra
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