Quantum coherent effects in multi-Zeeman-sublevel atomic systems
Dong Ya-Bin(董雅宾)a)†, Gao Jiang-Rui(郜江瑞)a)b), and Dong You-Er(董有尔)a)
a Department of Physics, Shanxi University, Taiyuan 030006, China; b State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
Abstract This paper reports the experimental results on electromagnetically induced absorption (EIA) spectra observed in the system which does not satisfy completely the conditions given by Lezama et al [1999 Phys. Rev. A 59 4732]. EIA signals on the transitions in the Cs $D_{2}$ line are able to be observed, where $F_{\rm g} \leftrightarrow F_{\rm e}=F_{\rm g}-1$ as open systems. Theoretical model of Lezama et al is good for the case $F_{\rm g} \leftrightarrow F_{\rm e}=F_{\rm g}+1$, considering spontaneous transfer of atomic coherences or populations this model is not able to explain our experimental results obtained in the case $F_{\rm g} \leftrightarrow F_{\rm e}=F_{\rm g}-1$. This paper offers a theoretical model which is able to well explain the case $F_{\rm g} \leftrightarrow F_{\rm e}=F_{\rm g}-1$. It also uses this theoretical model to explain the split and shift of EIA peaks, which have been obtained in experiments.
Received: 23 January 2008
Revised: 05 March 2008
Accepted manuscript online:
PACS:
42.50.Gy
(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
Fund: Project supported by the Natural
Science Foundation of the Shanxi Higher Education Institutions of
China (Grant No 2007101) and the National Natural Science Foundation
of China (Grant No 60708010).
Cite this article:
Dong Ya-Bin(董雅宾), Gao Jiang-Rui(郜江瑞), and Dong You-Er(董有尔) Quantum coherent effects in multi-Zeeman-sublevel atomic systems 2008 Chin. Phys. B 17 3306
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