A study of optical properties of a four-level atomic system via vacuum-induced coherence effects  

作　　者：陈峻 刘正东 郑军 庞玮 尤素萍 

机构地区：[1]Experimental Teaching Center,Guangdong University of Technology [2]Department of Physics,Hangzhou Dianzi University [3]Engineering Research Center for Nanotechnology,Nanchang University [4]Institute of Modern Physics,Nanchang University [5]Institute of Optoelectronic Material and Technology,South China Normal University

出　　处：《Chinese Physics B》2010年第4期259-263,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 10464002 and 60768001);the Youth Foundation of Guangdong University of Technology (Grant No. 072020)

摘　　要：This paper studies the effects of vacuum-induced coherence （VIC） in a four-level atomic system. The effects of VIC lead to the coherent hole burnings exhibited in the system at some certain points of the Rabi frequency. This is also the reason for the enhancement of the coherent population trapping. In addition, optical bistability occurs in the evolution curves of absorption versus the phase of Rabi frequencies.This paper studies the effects of vacuum-induced coherence （VIC） in a four-level atomic system. The effects of VIC lead to the coherent hole burnings exhibited in the system at some certain points of the Rabi frequency. This is also the reason for the enhancement of the coherent population trapping. In addition, optical bistability occurs in the evolution curves of absorption versus the phase of Rabi frequencies.

关 键 词：vacuum-induced coherence quantum interference coherent hole burning optical bistability 

分 类 号：O431.2[机械工程—光学工程] O562[理学—光学]