Mode Repulsion and Mode Coupling in Random Lasers
无序系统与神经网络
2009-11-10 v1
摘要
We studied experimentally and theoretically the interaction of lasing modes in random media. In a homogeneously broadened gain medium, cross gain saturation leads to spatial repulsion of lasing modes. In an inhomogeneously broadened gain medium, mode repulsion occurs in the spectral domain. Some lasing modes are coupled through photon hopping or electron absorption and reemission. Under pulsed pumping, weak coupling of two modes leads to synchronization of their lasing action. Strong coupling of two lasing modes results in anti-phased oscillations of their intensities.
引用
@article{arxiv.cond-mat/0301461,
title = {Mode Repulsion and Mode Coupling in Random Lasers},
author = {H. Cao and Xunya Jiang and Y. Ling and J. Y. Xu and C. M. Soukoulis},
journal= {arXiv preprint arXiv:cond-mat/0301461},
year = {2009}
}
备注
13 pages, 4 figures