Strong Interactions in Multimode Random Lasers
Top Cited Papers
- 2 May 2008
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 320 (5876), 643-646
- https://doi.org/10.1126/science.1155311
Abstract
Unlike conventional lasers, diffusive random lasers (DRLs) have no resonator to trap light and no high-Q resonances to support lasing. Because of 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.Other Versions
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