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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 4 — Feb. 16, 2009
  • pp: 2465–2469

Backward propagating slow light in inverted plasmonic taper

Eyal Feigenbaum and Meir Orenstein  »View Author Affiliations

Optics Express, Vol. 17, Issue 4, pp. 2465-2469 (2009)

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The negative dispersion of the TM1 mode of a thin plasmonic gap, occurring at frequencies exceeding the surface plasmon frequency, is assigned by causality to be a backward wave. This negative index mode, is also slow-light – having small positive group velocity and is exhibiting inverse geometrical cutoff characteristics – namely when the gap width is enhanced.

© 2009 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.2030) Physical optics : Dispersion
(350.3618) Other areas of optics : Left-handed materials

ToC Category:
Slow and Fast Light

Original Manuscript: November 18, 2008
Revised Manuscript: January 12, 2009
Manuscript Accepted: January 15, 2009
Published: February 5, 2009

Eyal Feigenbaum and Meir Orenstein, "Backward propagating slow light in inverted plasmonic taper," Opt. Express 17, 2465-2469 (2009)

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