Mechanisms for Lasing with Cold Atoms as the Gain Medium
arXiv:0804.0109 · doi:10.1103/PhysRevLett.101.093002
Abstract
We realize a laser with a cloud of cold rubidium atoms as gain medium, placed in a low-finesse cavity. Three different regimes of laser emission are observed corresponding respectively to Mollow, Raman and Four Wave Mixing mechanisms. We measure an output power of up to 300 W and present the main properties of these different lasers in each regime.
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- In-situ Raman gain between hyperfine ground states in a potassium magneto-optical trap
- Coherence time of a cold-atom laser below threshold
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- Temporal dynamics in the Bragg reflection of light by cold atoms: flash effect and superradiant decay