Strong Interactions in Multimode Random Lasers
Loading...
Date
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
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.
13 pages, 4 figures. Supplementary information available at arXiv:0805.4497
13 pages, 4 figures. Supplementary information available at arXiv:0805.4497