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

doi:10.1103/PhysRevA.73.041802

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

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

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 intracavity atoms is large, up to N∼ 103, 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.

Original language	English
Article number	041802
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	73
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.73.041802
Publication status	Published - 2006

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.73.041802

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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 intracavity atoms is large, up to N∼ 103, 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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AU - Fang-Yen, C.

AU - Yu, C. C.

AU - Ha, S.

AU - Choi, W.

AU - An, K.

AU - Dasari, R. R.

AU - Feld, M. S.

PY - 2006

Y1 - 2006

N2 - 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 intracavity atoms is large, up to N∼ 103, 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.

AB - 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 intracavity atoms is large, up to N∼ 103, 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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JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

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Observation of multiple thresholds in the many-atom cavity QED microlaser

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