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Deep-subwavelength waveguiding via inhomogeneous second-harmonic generation |
Optics Letters, Vol. 37, Issue 15, pp. 3093-3095 (2012)
http://dx.doi.org/10.1364/OL.37.003093
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Abstract
We theoretically investigate second-harmonic generation in extremely narrow, subwavelength semiconductor and dielectric waveguides. We discuss a guiding mechanism characterized by the inhibition of diffraction and the suppression of cutoff limits in the context of a light trapping phenomenon that sets in under conditions of general phase and group velocity mismatch between the fundamental and the generated harmonic.
© 2012 Optical Society of America
OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(230.7370) Optical devices : Waveguides
ToC Category:
Nonlinear Optics
History
Original Manuscript: May 18, 2012
Revised Manuscript: June 18, 2012
Manuscript Accepted: June 19, 2012
Published: July 19, 2012
Citation
Vito Roppo, Maria Antonietta Vincenti, Domenico de Ceglia, and Michael Scalora, "Deep-subwavelength waveguiding via inhomogeneous second-harmonic generation," Opt. Lett. 37, 3093-3095 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-15-3093
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