Non-phase-matched enhancement of second-harmonic generation in multilayer nonlinear structures with internal reflections
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Marco Centini, Giuseppe D’Aguanno, Letizia Sciscione, Concita Sibilia, Mario Bertolotti, Michael Scalora, and Mark J. Bloemer, "Non-phase-matched enhancement of second-harmonic generation in multilayer nonlinear structures with internal reflections," Opt. Lett. 29, 1924-1926 (2004), https://doi.org/10.1364/OL.29.001924
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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain Mark 1.0
This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract
Traditional notions of second-harmonic generation rely on phase matching or quasi phase matching to achieve good conversion efficiencies. We present an entirely new concept for efficient second-harmonic generation that is based on the interference of counterpropagating waves in multilayer structures. Conversion efficiencies are an order of magnitude larger than with phase-matched second-harmonic generation in similar multilayer structures.