2013/11/18 by Viola Folli, Katia Gallo, Claudio Conti · 1 citation
Physics and Astronomy · #physics.optics
paper · pdf · doi:10.1364/ol.38.005276
5 pages, 5 figures
arxiv created 2013/11/18 · arxiv updated 2015/06/17
We investigate spatial localization in a quadratic nonlinear medium in the presence of randomness. By means of numerical simulations and theoretical analyses we show that, in the down conversion regime, the transverse random modulation of the nonlinear susceptibility generates localizations of the fundamental wave that grow exponentially in propagation. The localization length is optically controlled by the pump intensity which determines the amplification rate. The results also apply to cubic nonlinearities.