Observation of transient electromagnetically induced transparency in a rubidium Λ system

  • Chen H
  • Durrant A
  • Marangos J
 et al. 
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Abstract

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.

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Authors

  • H. X. Chen

  • A. V. Durrant

  • J. P. Marangos

  • J. A. Vaccaro

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