Strong Interactions in Multimode Random Lasers
Optics
2008-05-30 v1 Disordered Systems and Neural Networks
Mesoscale and Nanoscale Physics
Chaotic Dynamics
Abstract
Unlike conventional lasers, diffusive random lasers (DRLs) have no resonator to trap light and no high-Q resonances to support lasing. Due to this lack of sharp resonances the DRL has presented a challenge to conventional laser theory. We present a theory able to treat the DRL rigorously, and provide results on the lasing spectra, internal fields and output intensities of DRLs. Typically DRLs are highly multimode lasers, emitting light at a number of wavelengths. We show that the modal interactions through the gain medium in such lasers are extremely strong and lead to a uniformly spaced frequency spectrum, in agreement with recent experimental observations.
Cite
@article{arxiv.0805.4496,
title = {Strong Interactions in Multimode Random Lasers},
author = {Hakan E. Türeci and Li Ge and Stefan Rotter and A. Douglas Stone},
journal= {arXiv preprint arXiv:0805.4496},
year = {2008}
}
Comments
13 pages, 4 figures. Supplementary information available at arXiv:0805.4497