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arXiv · 1201.3865

Beam Instabilities in the Scale Free Regime

Viola Folli·Eugenio DelRe·Claudio Conti
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Abstract

The instabilities arising in a one-dimensional beam sustained by the diffusive photorefractive nonlinearity in out-of-equilibrium ferroelectrics are theoretically and numerically investigated. In the "scale-free model", in striking contrast with the well-known spatial modulational instability, two different beam instabilities dominate: a defocusing and a fragmenting process. Both are independent of the beam power and are not associated to any specific periodic pattern.

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Viola Folli, Eugenio DelRe, Claudio Conti. 2012-01-18. Beam Instabilities in the Scale Free Regime. https://doi.org/10.1103/physrevlett.108.033901

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