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Plasmonic band gaps and trapped plasmons on nanostructured metal surfaces

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.
0031-9007
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
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), 116802-[4pp]. (doi:10.1103/PhysRevLett.95.116802).

Record type: Article

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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More information

Published date: 9 September 2005

Identifiers

Local EPrints ID: 57347
URI: http://eprints.soton.ac.uk/id/eprint/57347
ISSN: 0031-9007
PURE UUID: 869919cd-e549-4969-845d-9ecf6dbd3a46
ORCID for P.N. Bartlett: ORCID iD orcid.org/0000-0002-7300-6900

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Date deposited: 14 Aug 2008
Last modified: 29 Oct 2019 02:07

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