Observation of transient effects in electromagnetically induced transparency (EIT) is reported in Rb85 cooled in a magneto-optical trap. The transmission of a weak probe beam in resonance with the 5S1/2(F=3) to 5P3/2(F=3) hyperfine transition increased transiently when a relatively strong coupling field in resonance with the 5S1/2(F=2) to 5P3/2(F=3) hyperfine transition was switched on rapidly using a Pockels cell. The probe transient showed an initial Rabi half-cycle overshoot before settling down to steady-state EIT. The results agreed well with computations using a three-state model of the Lamda system. The computations also suggest that transient gain should be observed with coupling field power only four times larger than that presently available to us.
Mendeley saves you time finding and organizing research
Choose a citation style from the tabs below