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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 18 — Sep. 15, 2006
  • pp: 2750–2752

Tunable composite nanoparticle for plasmonics

Gaëtan Lévêque and Olivier J.F. Martin  »View Author Affiliations


Optics Letters, Vol. 31, Issue 18, pp. 2750-2752 (2006)
http://dx.doi.org/10.1364/OL.31.002750


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Abstract

We present a numerical study of the tunability properties of a plasmonic subwavelength particle deposited on a metallic slab. The particle is composed of a metallic part, supporting a localized plasmon mode, separated from the slab by a dielectric spacer. It is shown that the position of the resonance wavelength can be modified over a large spectral range by changing either the spacer thickness by a few tens of nanometers or its susceptibility within the range of usual dielectrics. A linear relation is observed between the resonance wavelength and the spacer permittivity.

© 2006 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(220.4830) Optical design and fabrication : Systems design
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics

ToC Category:
Physical Optics

History
Original Manuscript: April 5, 2006
Revised Manuscript: July 5, 2006
Manuscript Accepted: July 6, 2006
Published: August 25, 2006

Citation
Gaëtan Lévêque and Olivier J.F. Martin, "Tunable composite nanoparticle for plasmonics," Opt. Lett. 31, 2750-2752 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-18-2750


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