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Confined Plasmons in Metallic Nanocavities

Confined Plasmons in Metallic Nanocavities
Confined Plasmons in Metallic Nanocavities
We investigate the properties of gold surfaces patterned using a nanoscale "lost wax" technique by electrochemical deposition through a self-assembled latex template. Near-spherical gold nanocavities within the resulting porous films support localized surface plasmons which couple strongly to incident light, appearing as sharp spectral features in reflectivity measurements. The energy of the resonances is easily tunable from ultraviolet to near infrared by controlling the diameter and height of the nanocavities. The energies of these features agree well with the Mie resonances of a perfect spherical void.
optical-transmission, surface-plasmons, gratings, nanoshells
0031-9007
176801-[4pp]
Coyle, S.
fea55080-7d4c-4df2-a0fa-ef0012cf36ee
Netti, M.C.
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Baumberg, J.J.
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Ghanem, M.A.
f256d3b0-8767-4c1b-919d-2c9582102162
Birkin, P.R.
ba466560-f27c-418d-89fc-67ea4f81d0a7
Bartlett, P.N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Whittaker, D.M.
c2c77600-df06-4a2a-81a2-628964c9204c
Coyle, S.
fea55080-7d4c-4df2-a0fa-ef0012cf36ee
Netti, M.C.
e565f0dc-9641-4f19-a536-f1c1f01ea0dd
Baumberg, J.J.
78e1ea7e-8c70-404c-bf84-59aafe75cd07
Ghanem, M.A.
f256d3b0-8767-4c1b-919d-2c9582102162
Birkin, P.R.
ba466560-f27c-418d-89fc-67ea4f81d0a7
Bartlett, P.N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Whittaker, D.M.
c2c77600-df06-4a2a-81a2-628964c9204c

Coyle, S., Netti, M.C., Baumberg, J.J., Ghanem, M.A., Birkin, P.R., Bartlett, P.N. and Whittaker, D.M. (2001) Confined Plasmons in Metallic Nanocavities. Physical Review Letters, 87 (17), 176801-[4pp]. (doi:10.1103/PhysRevLett.87.176801).

Record type: Article

Abstract

We investigate the properties of gold surfaces patterned using a nanoscale "lost wax" technique by electrochemical deposition through a self-assembled latex template. Near-spherical gold nanocavities within the resulting porous films support localized surface plasmons which couple strongly to incident light, appearing as sharp spectral features in reflectivity measurements. The energy of the resonances is easily tunable from ultraviolet to near infrared by controlling the diameter and height of the nanocavities. The energies of these features agree well with the Mie resonances of a perfect spherical void.

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Published date: October 2001
Related URLs:
Keywords: optical-transmission, surface-plasmons, gratings, nanoshells
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Identifiers

Local EPrints ID: 256692
URI: http://eprints.soton.ac.uk/id/eprint/256692
DOI: doi:10.1103/PhysRevLett.87.176801
ISSN: 0031-9007
PURE UUID: e3f59c22-f2ce-4054-b948-11493b044223
ORCID for P.R. Birkin: ORCID iD orcid.org/0000-0002-6656-4074
ORCID for P.N. Bartlett: ORCID iD orcid.org/0000-0002-7300-6900

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Date deposited: 18 Jul 2002
Last modified: 15 Mar 2024 02:47

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Contributors

Author: S. Coyle
Author: M.C. Netti
Author: J.J. Baumberg
Author: M.A. Ghanem
Author: P.R. Birkin ORCID iD
Author: P.N. Bartlett ORCID iD
Author: D.M. Whittaker

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