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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 11 — May. 28, 2007
  • pp: 6762–6767

Plasmonic transmission lines: from micro to nano scale with λ/4 impedance matching

Pavel Ginzburg and Meir Orenstein  »View Author Affiliations

Optics Express, Vol. 15, Issue 11, pp. 6762-6767 (2007)

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The downscaling of conventional RF transmission lines methodologies to subwavelength plasmonic circuits is discussed and demonstrated for a λ/4 transformer impedance matching. The nano-size transformer, matching between 0.5μm and 50nm wide plasmonic transmission lines, enhances the coupling efficiency by more than 285% compared to the direct (“end fire”) coupling – i.e. harvesting more than 86% of total incident power. The influence of the transverse resonances induced by the metal claddings of the input transmission line on the light harvesting is discussed as well.

© 2007 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

Original Manuscript: April 4, 2007
Revised Manuscript: May 14, 2007
Manuscript Accepted: May 14, 2007
Published: May 17, 2007

Pavel Ginzburg and Meir Orenstein, "Plasmonic transmission lines: from micro to nano scale with λ/4 impedance matching," Opt. Express 15, 6762-6767 (2007)

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