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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 30 — Oct. 20, 2009
  • pp: 5683–5691

Propagation length of surface plasmons in a metal film with roughness

Andrei Kolomenski, Alexandre Kolomenskii, John Noel, Siying Peng, and Hans Schuessler  »View Author Affiliations


Applied Optics, Vol. 48, Issue 30, pp. 5683-5691 (2009)
http://dx.doi.org/10.1364/AO.48.005683


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Abstract

The propagation of laser-excited surface plasmons along a gold film with surface roughness is directly observed via scattered light. The attenuation length of surface plasmons in a broad wavelength interval is calculated for smooth gold and silver films. The surface roughness, which was characterized with an AFM, introduces corrections to the attenuation length, angular dependence of the surface plasmon resonance, and the effective dielectric constant of the metal film. These corrections are also taken into account and discussed.

© 2009 Optical Society of America

OCIS Codes
(240.0310) Optics at surfaces : Thin films
(240.5770) Optics at surfaces : Roughness
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

History
Original Manuscript: May 6, 2009
Revised Manuscript: September 2, 2009
Manuscript Accepted: September 4, 2009
Published: October 12, 2009

Citation
Andrei Kolomenski, Alexandre Kolomenskii, John Noel, Siying Peng, and Hans Schuessler, "Propagation length of surface plasmons in a metal film with roughness," Appl. Opt. 48, 5683-5691 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-30-5683

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