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Opt Lett. 2006 Apr 1;31(7):966-8.

Trapping of discrete solitons by defects in nonlinear waveguide arrays.

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  • 1Max-Planck-Institut für Physik Komplexer Systeme, Nöthnilzer Strasse 38, D-01187 Dresden, Germany. lmolina@pks.mpg.de


We study the trapping process of moving discrete solitons by linear and nonlinear impurities embedded in a one-dimensional nonlinear cubic array. We show that there exist specific values for the strength of the impurity and for the angle where a strong trapping is obtained. We introduce a criterion for studying the scattering dynamics of localized waves in nonlinear extended systems where the trapping of energy takes place.

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