Influence of Spatial Correlations on the Lasing Threshold of Random Lasers

Details Influence of Spatial Correlations on the Lasing Threshold of Random Lasers Influence of Spatial Correlations on the Lasing Threshold of Random Lasers

2003-02-25

arxiv.org/abs/cond-mat/0302506v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevE.67.065603

The lasing threshold of a random laser is computed numerically from a generic model. It is shown that spatial correlations of the disorder in the medium (i.e., dielectric constant) lead to an increase of the decay rates of the eigenmodes and of the lasing threshold. This is in conflict with predictions that such correlations should lower the threshold. While all results are derived for photonic systems, the computed decay rate distributions also apply to electronic systems.

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