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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 19 — Oct. 1, 2010
  • pp: 3153–3155

Asymmetric plasmonic-dielectric coupler with short coupling length, high extinction ratio, and low insertion loss

Qiang Li, Yi Song, Gan Zhou, Yikai Su, and Min Qiu  »View Author Affiliations


Optics Letters, Vol. 35, Issue 19, pp. 3153-3155 (2010)
http://dx.doi.org/10.1364/OL.35.003153


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Abstract

Asymmetric directional coupling between a hybrid plasmonic waveguide with subwavelength field confinement and a conventional dielectric waveguide is investigated. The proposed hybrid coupler features short coupling length, high coupling efficiency, high extinction ratio, and low insertion loss; it can also be integrated into a silicon-based platform. This coupler can be potentially adopted for signal routing between plasmonic waveguides and dielectric waveguides in photonic integrated circuits. Furthermore, it can be exploited to efficiently excite hybrid plasmonic modes with conventional dielectric modes.

© 2010 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(250.5300) Optoelectronics : Photonic integrated circuits
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Optoelectronics

History
Original Manuscript: April 20, 2010
Revised Manuscript: August 19, 2010
Manuscript Accepted: August 20, 2010
Published: September 20, 2010

Citation
Qiang Li, Yi Song, Gan Zhou, Yikai Su, and Min Qiu, "Asymmetric plasmonic-dielectric coupler with short coupling length, high extinction ratio, and low insertion loss," Opt. Lett. 35, 3153-3155 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-19-3153


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