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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 28 — Oct. 1, 2011
  • pp: 5457–5464

Ring-type plasmon resonance in metallic nanoshells

Boris Apter, Oren Guilatt, and Uzi Efron  »View Author Affiliations

Applied Optics, Vol. 50, Issue 28, pp. 5457-5464 (2011)

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A simple, approximate theoretical model of surface plasmon resonance in two-dimensional metal nanoshells is developed. The model is based on the concept of short-range surface plasmons propagating around closed circular metal nanotubes. In this model, the plasmon resonance in a metal nanotube is treated as a propagating, self-interfering plasmonic wave, in a ring-type resonance, at plasmonic wavelengths matching an integer fraction of the nanotube’s effective circumference. The model is validated by detailed computer simulations based on the finite-difference time-domain method and is shown to be in full agreement with the widely used plasmon hybridization model, which is based on the quasi-static approximation.

© 2011 Optical Society of America

OCIS Codes
(140.4780) Lasers and laser optics : Optical resonators
(240.6680) Optics at surfaces : Surface plasmons
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Optics at Surfaces

Original Manuscript: May 6, 2011
Revised Manuscript: July 6, 2011
Manuscript Accepted: July 6, 2011
Published: September 30, 2011

Boris Apter, Oren Guilatt, and Uzi Efron, "Ring-type plasmon resonance in metallic nanoshells," Appl. Opt. 50, 5457-5464 (2011)

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