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Enhanced second-harmonic generation from resonant GaAs gratings |
Optics Letters, Vol. 36, Issue 5, pp. 704-706 (2011)
http://dx.doi.org/10.1364/OL.36.000704
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Abstract
We theoretically study second harmonic generation in nonlinear, GaAs gratings. We find large enhancement of conversion efficiency when the pump field excites the guided mode resonances of the grating. Under these circumstances the spectrum near the pump wavelength displays sharp resonances characterized by dramatic enhancements of local fields and favorable conditions for second-harmonic generation, even in regimes of strong linear absorption at the harmonic wavelength. In particular, in a GaAs grating pumped at
© 2011 Optical Society of America
OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(190.2620) Nonlinear optics : Harmonic generation and mixing
(310.2790) Thin films : Guided waves
ToC Category:
Nonlinear Optics
History
Original Manuscript: December 20, 2010
Revised Manuscript: January 21, 2011
Manuscript Accepted: January 25, 2011
Published: February 24, 2011
Citation
D. de Ceglia, G. D’Aguanno, N. Mattiucci, M. A. Vincenti, and M. Scalora, "Enhanced second-harmonic generation from resonant GaAs gratings," Opt. Lett. 36, 704-706 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-5-704
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