Physical Review Letters

Ultrasharp lines in the absorption and fluorescence spectra of an atom in a cavity

Helen S. Freedhoff, Tran Quang

Published Jan 24, 1994• 35 citations

Abstract

The absorption and fluorescence spectra of an atom driven by a strong, in general, off-resonance external field and coupled to a single cavity mode is investigated. It is shown that for moderate coupling constant the spectral components can become ultrasharp lines whose linewidths are narrower than both the natural linewidth and the cavity decay rate.

DOI: 10.1103/physrevlett.72.474

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