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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 23 — Dec. 1, 2011
  • pp: 4635–4637

Waveguided spoof surface plasmons with deep-subwavelength lateral confinement

Diego Martin-Cano, O. Quevedo-Teruel, Esteban Moreno, L. Martin-Moreno, and F. J. Garcia-Vidal  »View Author Affiliations

Optics Letters, Vol. 36, Issue 23, pp. 4635-4637 (2011)

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We present a new type of waveguide scheme for terahertz circuitry based on the concept of spoof surface plasmons. This structure is composed of a one-dimensional array of L-shaped metallic elements horizontally attached to a metal surface. The dispersion relation of the surface electromagnetic modes supported by this system presents a very weak dependence with the lateral dimension and the modes are very deep-subwavelength confined with a long-enough propagation length.

© 2011 Optical Society of America

OCIS Codes
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(230.7370) Optical devices : Waveguides
(230.7390) Optical devices : Waveguides, planar
(240.6680) Optics at surfaces : Surface plasmons
(240.6690) Optics at surfaces : Surface waves
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Optics at Surfaces

Original Manuscript: August 11, 2011
Revised Manuscript: October 24, 2011
Manuscript Accepted: October 24, 2011
Published: November 28, 2011

Diego Martin-Cano, O. Quevedo-Teruel, Esteban Moreno, L. Martin-Moreno, and F. J. Garcia-Vidal, "Waveguided spoof surface plasmons with deep-subwavelength lateral confinement," Opt. Lett. 36, 4635-4637 (2011)

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