Non-phase-matched enhancement of second-harmonic generation in multilayer nonlinear structures with internal reflections.
- 13 August 2004
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 29 (16) , 1924-1926
- https://doi.org/10.1364/ol.29.001924
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.Keywords
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