Time Dependent Theory for Random Lasers
无序系统与神经网络
2009-10-31 v1
摘要
A model to simulate the phenomenon of random lasing is presented. It couples Maxwell's equations with the rate equations of electronic population in a disordered system. Finite difference time domain methods are used to obtain the field pattern and the spectra of localized lasing modes inside the system. A critical pumping rate exists for the appearance of the lasing peaks. The number of lasing modes increase with the pumping rate and the length of the system. There is a lasing mode repulsion. This property leads to a saturation of the number of modes for a given size system and a relation between the localization length and average mode length .
引用
@article{arxiv.cond-mat/0002370,
title = {Time Dependent Theory for Random Lasers},
author = {Xunya Jiang and C. M. Soukoulis},
journal= {arXiv preprint arXiv:cond-mat/0002370},
year = {2009}
}
备注
8 pages. Send to PRL