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Observation of Multiple Thresholds in the Many-Atom Cavity QED Microlaser

C. Fang-Yen·C. C. Yu·S. Ha·W. Choi·K. An·R. R. Dasari·M. S. Feld
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Abstract

We report the observation of multiple laser thresholds in the many-atom cavity QED microlaser. Traveling-wave coupling and a supersonic atom beam are used to create a well-defined atom-cavity interaction. Multiple thresholds are observed as jumps in photon number due to oscillatory gain. Although the number of intra-cavity atoms is large, up to N~1000, the dynamics of the microlaser agree with a single atom theory. This agreement is supported by quantum trajectory simulations of a many-atom microlaser and a semiclassical microlaser theory. We discuss the relation of the microlaser with the micromaser and conventional lasers.

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C. Fang-Yen, C. C. Yu, S. Ha, W. Choi, K. An, R. R. Dasari, M. S. Feld. 2004-12-22. Observation of Multiple Thresholds in the Many-Atom Cavity QED Microlaser. https://arxiv.org/abs/physics/0412143

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