Control of light in an M-type five-level atomic system

被引：27
作者：
Li, LM [1 ]
Guo, H [1 ]
Xiao, F [1 ]
Peng, X [1 ]
Chen, XZ [1 ]
机构：
[1] Peking Univ, Coherent Reversible Atom Manipulat Grp, Key Lab Quantum Informat & Measurements, Minist Educ,Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2005年 / 22卷 / 06期
关键词：
D O I：
10.1364/JOSAB.22.001309
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An M-type five-level atomic model is proposed to achieve a large index of refraction with vanishing absorption. We present a novel model, to our knowledge, in theoretical analysis, in which an incoherent pumping rate is adopted to simplify the M-type five-level system to be an equivalent four-level system. The theoretical and experimental results show that, by adjustment of the intensity of the incoherent pump, lower group velocity (than that obtained in a conventional A-type three-level electromagnetically induced transparency system) is obtained in cesium atomic vapor. Moreover, a saturation limit for the group velocity is also presented. The experimental results show good agreement with the theoretical analysis. (C) 2005 Optical Society of America.
引用
收藏
页码：1309 / 1313
页数：5
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