Acta Sinica Quantum Optica

The Investigation of Relationship Between Light Storage Efficiency and Coupling Intensity in Cold Atom Ensemble

Hai Wang

Published Jan 1, 2010• 0 citations

Abstract

By using electromagnetically induced transparency(EIT) dynamics,we realized the storage and release of optical signals in 87Rb cold atoms,studied the relationship between the storage efficiency and the coupling intensity.Experimental results show that the storage efficiency increases with the coupling intensity in the situation of low coupling intensity.When the coupling beam exceeds certain intensity,the storage efficiency doesn′t increase any more.Then it runs down with the rise of coupling intensity.By analyzing the absorption and dispersion characteristics of light pulse propagating through cold atoms,we made a qualitative explanation of the changing trend of the storage efficiency with the coupling intensity changing.

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