Modulation Instability and Pattern Formation in Spatially Incoherent Light Beams
Optics
2009-11-06 v1
Abstract
We present the first experimental observation of modulation instability of partially spatially incoherent light beams in non-instantaneous nonlinear media. We show that even in such a nonlinear partially coherent system (of weakly-correlated particles) patterns can form spontaneously. Incoherent MI occurs above a specific threshold that depends on the beams' coherence properties (correlation distance), and leads to a periodic train of one-dimensional (1D) filaments. At a higher value of nonlinearity, incoherent MI displays a two-dimensional (2D) instability and leads to self-ordered arrays of light spots.
Cite
@article{arxiv.physics/0005083,
title = {Modulation Instability and Pattern Formation in Spatially Incoherent Light Beams},
author = {Detlef Kip and Marin Soljacic and Mordechai Segev and Evgenia Eugenieva and Demetrios N. Christodoulides},
journal= {arXiv preprint arXiv:physics/0005083},
year = {2009}
}
Comments
16 pages, 4 figures