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Chinese Physics, 2002, Vol. 11(6): 572-577    DOI: 10.1088/1009-1963/11/6/310
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

Absorption properties of a driven Doppler-broadened ladder system with hyperfine structure

Wu Jin-Hui (吴金辉)a, Gao Jin-Yue (高锦岳)ab
a College of Physics, Jilin University, Changchun 130023, China; b China Center of Advanced Science and Technology (World Laboratory), Beijing 100080, China
Abstract  We have studied the absorption spectrum of a Doppler-broadened ladder system, where the highest level is coupled into two middle hyperfine sublevels by a strong coherent field. We find that, when the system is considered as homogeneous, either two or three spectral components are observed, depending on the detuning of the coherent field. But when the velocity distribution of atoms is considered, we can always observe one electromagnetically induced transparency (EIT) window with high dispersion. So the atomic hyperfine structure cannot be an impediment for obtaining EIT.
Keywords:  absorption spectrum      electromagnetically induced transparency      dressed atomic states  
Received:  09 November 2001      Revised:  06 January 2002      Accepted manuscript online: 
PACS:  42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)  
  32.70.Jz (Line shapes, widths, and shifts)  
  32.10.Fn (Fine and hyperfine structure)  
  32.80.-t (Photoionization and excitation)  
Fund: Project supported in part by the National Natural Science Foundation of China (Grant No 60078015), and by the Doctoral Programme Foundation of the Institution of Higher Education of China (Grant No 19201038).

Cite this article: 

Wu Jin-Hui (吴金辉), Gao Jin-Yue (高锦岳) Absorption properties of a driven Doppler-broadened ladder system with hyperfine structure 2002 Chinese Physics 11 572

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