Observation of discrete quadratic surface solitons

Universität Paderborn, Paderborn, North Rhine-Westphalia, Germany
Optics Express (Impact Factor: 3.53). 07/2006; 14(12):5508-16. DOI: 10.1364/OE.14.005508
Source: PubMed

ABSTRACT We report the first observation of discrete quadratic surface solitons in self-focusing and defocusing periodically poled lithium niobate waveguide arrays. By operating on either side of the phase-matching condition and using the cascading nonlinearity, both in-phase and staggered discrete surface solitons were observed. This represents the first experimental demonstration of staggered/gap surface solitons at the interface of a semi-infinite nonlinear lattice. The experimental results were found to be in good agreement with theory.

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Available from: Konstantinos G Makris, Oct 08, 2014
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