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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 23, Iss. 8 — Aug. 1, 2006
  • pp: 1971–1977

Long-range surface plasmon polariton mode cutoff and radiation in slab waveguides

Ian Breukelaar and Pierre Berini  »View Author Affiliations


JOSA A, Vol. 23, Issue 8, pp. 1971-1977 (2006)
http://dx.doi.org/10.1364/JOSAA.23.001971


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Abstract

The normal-mode-analysis method is used to model the radiative spreading of long-range surface plasmon polariton modes injected into regions where the bound surface mode is cutoff or radiative. Mode cutoff is induced by an asymmetry between the index of refraction of the top cladding layer and that of the bottom. The analysis was performed at λ 0 = 1.55 μ m for infinite-width (slab) metal waveguides where the metal was Au and the bounding dielectrics were SiO 2 . Results show that a change in insertion loss of > 20 dB is possible for an appropriate waveguide geometry and dielectric asymmetry.

© 2006 Optical Society of America

OCIS Codes
(230.7400) Optical devices : Waveguides, slab
(240.6680) Optics at surfaces : Surface plasmons
(250.7360) Optoelectronics : Waveguide modulators
(310.2790) Thin films : Guided waves
(350.5610) Other areas of optics : Radiation

ToC Category:
Optics at Surfaces

History
Original Manuscript: September 1, 2005
Revised Manuscript: December 13, 2005
Manuscript Accepted: February 9, 2006

Citation
Ian Breukelaar and Pierre Berini, "Long-range surface plasmon polariton mode cutoff and radiation in slab waveguides," J. Opt. Soc. Am. A 23, 1971-1977 (2006)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-23-8-1971

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