Slow Light amplification in a non-inverted gain medium
Filippo Caruso, Ivan Herrera, Saverio Bartalini, Francesco Cataliotti
Abstract
We investigate the propagation of a coherent probe light pulse through a three-level atomic medium (in the Λ--configuration) in the presence of a pump laser under the conditions for gain without inversion. When the carrier frequency of the probe pulse and the pump laser are in a Raman configuration, we show that it is possible to amplify a slow propagating pulse. We also analyze the regime in which the probe pulse is slightly detuned from resonance where we observe anomalous light propagation.
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