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Optics Communications

The resonance fluorescence spectrum of an atom driven by two coherent fields

Lorenzo M. Narducci, Gian‐Luca Oppo, Marlan O. Scully

Published Feb 1, 1990• 32 citations
Publisher
DOI
10.1016/0030-4018(90)90238-o

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Fluorescence from a coherently driven two-level atom that is damped by a squeezed vacuum is studied. We show that the mean atomic polarization depends on the relative phases of the squeezed vacuum and the coherent driving field. The fluorescent spectrum is calculated and shows several modifications over the spectrum for normal resonance fluorescence. In particular, the central peak of the Mollow triplet has a linewidth that depends on the phase of the driving field. For strong squeezing this peak can either be much narrower or much broader than the natural linewidth of the atom.