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The retrieve process of stored light field is important for quantum information, nonlinear optics, and quantum optics. Electromagnetically induced transparency (EIT) is one of the popular methods. In this paper we demonstrate the co-propagating and counter-propagating scheme of EIT retrieved in vapor 87Rb atomic cell. Result indicates that the retrieval efficiency depends on the spatial distribution of the atomic spin waves. Our experimental results may be useful to quantum information and nonlinear optics with vapor atomic ensemble.
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[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13]
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