Electromagnetically induced transparency for Lambda - like systems with a structured continuum

Abstract

Electric susceptibility of a laser-dressed atomic medium is calculated for a model Lambda - like system including two lower states and a continuum structured by a presence of an autoionizing state or a continuum with a laser-induced structure. Depending on the strength of a control field it is possible to obtain a significant reduction of the light velocity in a narrow frequency window in the conditions of a small absorption. A smooth transition is shown between the case of a flat continuum and that of a discrete state serving as the upper state of a Lambda system.

arXiv comment6 pages, 5 figures

References in corpus (1)

• Storage of light in atomic vapor

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