Confined plasmons in metallic nanocavities


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).

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Description/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.

Item Type: Article
ISSNs: 0031-9007 (print)
Related URLs:
Keywords: optical-transmission, surface-plasmons, gratings, nanoshells
Subjects: T Technology > TP Chemical technology
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > School of Physics and Astronomy
University Structure - Pre August 2011 > School of Chemistry
ePrint ID: 14635
Date Deposited: 18 Feb 2005
Last Modified: 27 Mar 2014 18:05
URI: http://eprints.soton.ac.uk/id/eprint/14635

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