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Abstract

The asymmetry of the absorption curve of electromagnetically induced transparency by a resonant coupling field in -type three-level systems for Rb87 cold atoms is investigated. We find that it is the other excited state, separated by an interval of 814 MHz, that induces this phenomenon. The primary cause of it is the stimulated Raman scattering. We also find that the ratio between the heights of the absorption peaks on the two sides of the transparency window is proportional to the intensity of the coupling beam. The theoretical result agrees well with the experimental data.

Keywords:

electromagnetically induced transparency/
asymmetry/
stimulated Raman scattering/
excited state

Authors and contacts

1.
Funds:Project supported by the National Natural Science Foundation of China (Grant Nos. 11274376, 61308011), the National Basic Research Program of China (Grant Nos. 2013CB922002, 2010CB922904), and the National High Technology Research and Development Program of China (Grant No. 2011AA120102).

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Cited By

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[20]	Zhang Xi-He, Wang Zhao-Min, Wan Chun-Ming.. Acta Physica Sinica, 2002, 51(6): 1251-1255.doi:10.7498/aps.51.1251

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Vol. 64, Issue 3 - 2015-02-05

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