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arXiv · 0804.4151

Observation of narrow Autler-Townes components in the resonant response of a dense atomic gas

Vladimir A. Sautenkov·Yuri V. Rostovtsev·Eric R. Eliel
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Abstract

We have experimentally studied the reflection of a weak probe beam from a dense atomic potassium vapor in the presence of a strong laser field tuned to the atomic resonance transition. We have observed an Autler-Townes doublet under hitherto unexplored conditions, namely that the Rabi frequency induced by the strong laser field is much smaller than the self-broadened width of the resonance transition of the unexcited vapor. We attribute our observation to a reduction of the atomic decoherence by the strong drive field. We present a theoretical model of nonlinear processes in a dense atomic gas to explain the observed results.

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Vladimir A. Sautenkov, Yuri V. Rostovtsev, Eric R. Eliel. 2008-04-25. Observation of narrow Autler-Townes components in the resonant response of a dense atomic gas. https://doi.org/10.1103/physreva.78.013802

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