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Observation of two-dimensional surface solitons in asymmetric waveguide arrays

 
: Szameit, A.; Kartashov, Y.V.; Dreisow, F.; Pertsch, T.; Nolte, S.; Tünnermann, A.; Torner, L.

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Physical review letters 98 (2007), Nr.17, S.173903
ISSN: 0031-9007
ISSN: 1079-7114
Englisch
Zeitschriftenaufsatz
Fraunhofer IOF ()
optical bloch oscillation; femtosecond laser; poly(methyl methacrylate); fused silica; Puls; diffraction; solitons

Abstract
We report on the experimental observation of two-dimensional surface waves localized at the edge or in the corner of femtosecond laser-written waveguide arrays in fused silica. Increasing the power of the input beam allows one to observe a clear transition from a linear diffraction pattern to localized nonlinear surface states, which can exist at the interface only above a certain power threshold. This constitutes the first ever experimental observation of two-dimensional nonlinear surface solitons in optics.

: http://publica.fraunhofer.de/dokumente/N-60783.html