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On decoherence of electromagnetically-induced transparency in atomic vapor

E. Figueroa·F. Vewinger·J. Appel·A. I. Lvovsky
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Abstract

We report characterization of electromagnetically induced transparency (EIT) resonances in the D1 line of Rb-87 under various experimental conditions. The dependence of the EIT linewidth on the power of the pump field was investigated, at various temperatures, for the ground states of the lambda-system associated with different hyperfine levels of the atomic 5S_1/2 state as well as magnetic sublevels of the same hyperfine level. Strictly linear behavior was observed in all cases. A theoretical analysis of our results shows that dephasing in the ground state is the main source of decoherence, with population exchange playing a minor role.

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E. Figueroa, F. Vewinger, J. Appel, A. I. Lvovsky. 2006-03-14. On decoherence of electromagnetically-induced transparency in atomic vapor. https://doi.org/10.1364/ol.31.002625

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