Phase matching in the presence of feedback: higher-order terms and enhancement of second-harmonic generation

Marco Centini; Giuseppe D'Aguanno; Letizia Sciscione; Concita Sibilia; Mario Bertolotti; Michael Scalora; Mark J Bloemer

doi:10.1117/12.527930

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9 July 2004 Phase matching in the presence of feedback: higher-order terms and enhancement of second-harmonic generation

Marco Centini; Giuseppe D'Aguanno; Letizia Sciscione; Concita Sibilia; Mario Bertolotti; Michael Scalora; Mark J Bloemer

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Proceedings Volume 5360, Photonic Crystal Materials and Devices II; (2004) https://doi.org/10.1117/12.527930
Event: Integrated Optoelectronic Devices 2004, 2004, San Jose, CA, United States

Abstract

We show that inside a multi-layer dielectric stack, consideration of higher-order, fast-oscillating interference terms between counter-propagating waves can dramatically change the dynamics of second harmonic generation, and thus lead to an unusual result: field confinement and overlap can be far better optimized, and conversion efficiencies further enhanced, in the presence of a phase mismatch. One may therefore conclude that phase matching is not always a necessary condition to provide optimized nonlinear frequency conversion efficiency.

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Marco Centini, Giuseppe D'Aguanno, Letizia Sciscione, Concita Sibilia, Mario Bertolotti, Michael Scalora, and Mark J Bloemer "Phase matching in the presence of feedback: higher-order terms and enhancement of second-harmonic generation", Proc. SPIE 5360, Photonic Crystal Materials and Devices II, (9 July 2004); https://doi.org/10.1117/12.527930

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