QED theory of excess spontaneous emission noise

Peter W. Milonni

doi:10.1117/12.24996

1 March 1991 QED theory of excess spontaneous emission noise

Peter W. Milonni

Proceedings Volume 1376, Laser Noise; (1991) https://doi.org/10.1117/12.24996
Event: Advances in Intelligent Robotics Systems, 1990, Boston, MA, United States

Abstract

The results of a quantum-electrodynamical theory of excess spontaneous emission noise in lossy resonators will be presented. The " Petermann K factor" does not enter into the spontaneous emission rate of a single atom in the cavity. The QED theory allows different interpretations of the K factor and we use this fact to justify semiclassical analyses and to provide in one example a simple derivation of K in terms of the amplification of the quantum vacuum field entering the resonator through its mirrors.

Citation Download Citation

Peter W. Milonni "QED theory of excess spontaneous emission noise", Proc. SPIE 1376, Laser Noise, (1 March 1991); https://doi.org/10.1117/12.24996

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