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Intensity-dependent dispersion under conditions of electromagnetically induced transparency in coherently prepared multi-state atoms

Andrew D. Greentree·Derek Richards·J. A. Vaccaro·A. V. Durrant·S. R. de Echaniz·D. M. Segal·J. P. Marangos
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Abstract

Interest in lossless nonlinearities has focussed on the the dispersive properties of $\Lambda $ systems under conditions of electromagnetically induced transparency (EIT). We generalize the lambda system by introducing further degenerate states to realize a `Chain $ \Lambda $' atom where multiple coupling of the probe field significantly enhances the intensity dependent dispersion without compromising the EIT condition.

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Andrew D. Greentree, Derek Richards, J. A. Vaccaro, A. V. Durrant, S. R. de Echaniz, D. M. Segal, J. P. Marangos. 2002-09-09. Intensity-dependent dispersion under conditions of electromagnetically induced transparency in coherently prepared multi-state atoms. https://doi.org/10.1103/physreva.67.023818

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