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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 8 — Apr. 16, 2007
  • pp: 5008–5017

Characteristics of ultra-long range surface plasmon waves at optical frequencies

Ronen Adato and Junpeng Guo  »View Author Affiliations

Optics Express, Vol. 15, Issue 8, pp. 5008-5017 (2007)

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It has been reported earlier that ultra-long range surface plasmon waves can be supported if dielectric layers with lower index of refraction than that of the dielectric cladding are placed on either side of the thin metal film. In this paper, we report a further investigation of the ultra-long range surface plasmon modes and the condition to support such ultra-long propagation distances at optical frequencies. We studied the effects of the index of refraction contrast between the inner layer and the cladding dielectrics, the metal film thickness, and the dispersion with wavelength. We present a condition which must be satisfied by the waveguide structure to support the bound ultra-long range surface plasmon mode.

© 2007 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(240.5420) Optics at surfaces : Polaritons
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

Original Manuscript: January 30, 2007
Revised Manuscript: March 12, 2007
Manuscript Accepted: March 27, 2007
Published: April 10, 2007

Ronen Adato and Junpeng Guo, "Characteristics of ultra-long range surface plasmon waves at optical frequencies," Opt. Express 15, 5008-5017 (2007)

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