Beam Instabilities in the Scale Free Regime
Optics
2012-01-19 v1 Disordered Systems and Neural Networks
Materials Science
Soft Condensed Matter
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.
Cite
@article{arxiv.1201.3865,
title = {Beam Instabilities in the Scale Free Regime},
author = {Viola Folli and Eugenio DelRe and Claudio Conti},
journal= {arXiv preprint arXiv:1201.3865},
year = {2012}
}
Comments
4 pages, 3 figures