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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 22 — Oct. 27, 2008
  • pp: 17842–17847

Novel complex modes in asymmetrical nanoscale plasmonic waveguides

Nikolai Berkovitch, Meir Orenstein, and Stephen G Lipson  »View Author Affiliations

Optics Express, Vol. 16, Issue 22, pp. 17842-17847 (2008)

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Highly asymmetrical plasmonic waveguides exhibit guiding even below the expected cut-off dimensions. A new family of discrete complex guided modes of asymmetrical waveguides with losses - which may assist in nano plasmonic guiding, is found by employing the effective index method. These modes having a real effective index lower than the substrate index of refraction can be exhibited also in regular (lossy) photonics.

© 2008 Optical Society of America

OCIS Codes
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Optics at Surfaces

Original Manuscript: July 2, 2008
Revised Manuscript: September 7, 2008
Manuscript Accepted: October 3, 2008
Published: October 20, 2008

Nikolai Berkovitch, Meir Orenstein, and Stephen G. Lipson, "Novel complex modes in asymmetrical nanoscale plasmonic waveguides," Opt. Express 16, 17842-17847 (2008)

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