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Optics Letters

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  • Vol. 36, Iss. 17 — Sep. 1, 2011
  • pp: 3371–3373

Efficient second-harmonic generation in nonlinear plasmonic waveguide

F. F. Lu, T. Li, X. P. Hu, Q. Q. Cheng, S. N. Zhu, and Y. Y. Zhu  »View Author Affiliations


Optics Letters, Vol. 36, Issue 17, pp. 3371-3373 (2011)
http://dx.doi.org/10.1364/OL.36.003371


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Abstract

We theoretically studied a nonlinear optical process in a hybrid plasmonic waveguide composed of a nonlinear dielectric waveguide and a metal film with a separation of a thin air gap. Owing to the hybridization effect of guided mode and surface plasmon polariton mode, this particular waveguide is able to confine the optical-field in a deep subwavelength scale together with low propagation loss. Based on this, efficient second-harmonic generations (SHG) were revealed at the fundamental wavelength of λ = 1.55 μm with good field confinement. The SHG efficiency, as well as the coupling coefficient and mode area, were analyzed and discussed in detail with respect to the structural parameters.

© 2011 Optical Society of America

OCIS Codes
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons
(230.7405) Optical devices : Wavelength conversion devices

ToC Category:
Nonlinear Optics

History
Original Manuscript: May 5, 2011
Revised Manuscript: July 11, 2011
Manuscript Accepted: July 30, 2011
Published: August 23, 2011

Citation
F. F. Lu, T. Li, X. P. Hu, Q. Q. Cheng, S. N. Zhu, and Y. Y. Zhu, "Efficient second-harmonic generation in nonlinear plasmonic waveguide," Opt. Lett. 36, 3371-3373 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-17-3371


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