A. Messikh et Mrb. Wahiddin, Fluorescence spectrum of a three-level system driven by a finite-bandwidthsqueezed vacuum, J OPT B-QUA, 2(1), 2000, pp. 24-28
Using the coupled-systems approach we show numerically that the fluorescenc
e spectrum from a three-level system driven by a finite-bandwidth squeezed
vacuum on one allowed atomic transition and pumped coherently on the other
allowed atomic transition may show, in addition to the Autler-Townes double
t, three other peaks. As the bandwidth of the squeezed vacuum increases the
three peaks disappear and eventually only the Autler-Townes doublet remain
s. This is due to a three-wave mixing process.