Spatial coherence singularities and incoherent vortex solitons
斑图形成与孤子
2009-11-10 v1
摘要
We study spatially localized optical vortices created by self-trapping of partially incoherent light with a phase dislocation in a biased photorefractive crystal. In a contrast to the decay of coherent self-trapped vortex beams due to the azimuthal instability, the incoherent vortices are stabilized when the spatial incoherence of light exceeds a certain threshold. We analyze the spatial coherence properties of the incoherent optical vortices and reveal the existence of ring-like singularities in the spatial coherence function of a vortex field that can characterize the stable propagation of vortices through nonlinear media.
引用
@article{arxiv.nlin/0410051,
title = {Spatial coherence singularities and incoherent vortex solitons},
author = {Kristian Motzek and Yuri S. Kivshar and Ming-Feng Shih and Grover A. Swartzlander},
journal= {arXiv preprint arXiv:nlin/0410051},
year = {2009}
}
备注
10 pages, 5 figures