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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 10 — May. 15, 2013
  • pp: 1630–1632

Directive antenna nanocoupler to plasmonic gap waveguides

F. Obelleiro, J. M. Taboada, D. M. Solís, and L. Bote  »View Author Affiliations


Optics Letters, Vol. 38, Issue 10, pp. 1630-1632 (2013)
http://dx.doi.org/10.1364/OL.38.001630


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Abstract

Optical nanocouplers matching a fiber microwaveguide to a plasmonic nanowaveguide are essential components for practical applications of nanophotonic systems. In this Letter we design an efficient nanocoupler using a directive nanoantenna in the visible range λ0=0.65μm. The antenna has been optimized both in the configuration and in the matching element in order to achieve the maximum coupling efficiency (CE). In spite of the reduced size of the nanoantenna in comparison with the impinging fiber spot size (due to the localized plasmonic resonance at such high frequency), we have shown that a good efficiency can be achieved, improving the CE by a factor of 10 with respect to the nondirective antenna nanocouplers.

© 2013 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(240.6680) Optics at surfaces : Surface plasmons
(250.5300) Optoelectronics : Photonic integrated circuits
(260.2110) Physical optics : Electromagnetic optics
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Optoelectronics

History
Original Manuscript: March 5, 2013
Revised Manuscript: April 10, 2013
Manuscript Accepted: April 11, 2013
Published: May 8, 2013

Citation
F. Obelleiro, J. M. Taboada, D. M. Solís, and L. Bote, "Directive antenna nanocoupler to plasmonic gap waveguides," Opt. Lett. 38, 1630-1632 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-10-1630


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