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Generalized expression for the natural width of the radiation spectrum of quantum oscillators

  • Atoms, Spectra, Radiations
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Abstract

A simple method for calculating the linewidth of sources of stimulated coherent radiation caused by spontaneous noise and thermal fluctuations has been proposed in the framework of the two-level model of the active medium. An expression for the spectral width has been derived beyond the adiabatic approximation under an arbitrary relation between relaxation times in a self-sustained oscillation system, taking into account a finite spectral band of spontaneous radiation. The result is applicable for a wide class of coherent radiation sources.

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Authors and Affiliations

  1. Faculty of Physics, Moscow State University, Moscow, 119992, Russia

    A. S. Chirkin

  2. Institute of Applied Physics, Schiller University, D-07743, Jena, Germany

    A. V. Chipouline

Authors
  1. A. S. Chirkin
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  2. A. V. Chipouline
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Correspondence to A. S. Chirkin.

Additional information

Original Russian Text © A.S. Chirkin, A.V. Chipouline, 2011, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2011, Vol. 93, No. 3, pp. 129–133.

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Chirkin, A.S., Chipouline, A.V. Generalized expression for the natural width of the radiation spectrum of quantum oscillators. Jetp Lett. 93, 114–118 (2011). https://doi.org/10.1134/S0021364011030039

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  • DOI: https://doi.org/10.1134/S0021364011030039

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