Random Lasing in an Inhomogeneous and Disordered System of Cold Atoms

摘要

We consider light trapping in an amplifying medium consisting of coldalkali-metal atoms; the atomic gas plays a dual role as a scattering and as again medium. We perform Monte-Carlo simulations for the combined processes. Insome configurations of the inhomogeneous distribution this leads to a point ofinstability behavior and a signature of random lasing in a cold atomic gas.