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Physical Review A

Excitation of atomic coherence using off-resonant strong laser pulses

Yuri V. Rostovtsev, Hichem Eleuch, Anatoly A. Svidzinsky, Hebin Li, Vladimir A. Sautenkov, Marlan O. Scully

Published Jun 24, 2009• 48 citations
Publisher

Abstract

We study dynamics of a two-level system driven by a strong off-resonant electromagnetic field. We derive an analytical solution for arbitrary pulse shape. We discuss possible applications and presented experimental demonstration of the results obtained.
DOI
10.1103/physreva.79.063833

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We consider a double two-level system in which each single two-level system is driven by a strong pulse. The light shifts induced by the strong field are probed by a weak pulse that connects the two sub-system in a crossed manner connecting the ground state of one system with the excited state of the other and vice versa. We are interested in coherent control of medium gain for the weak pulse and we demonstrate the conditions on laser and atomic parameters that render this control possible. Both ultra-short and long pulse regimes are discussed
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