Fluorescence properties in a single driven four-level atomic system  

作　　者：姜向前 吕志伟 张冰 孙秀冬 

机构地区：[1]National Key Laboratory of Science and Technology on Tunable Laser,Harbin Institute of Technology [2]Department of Physics,Harbin Institute of Technology

出　　处：《Chinese Physics B》2010年第11期270-274,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. 10904025,10674037 and 50836002);the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20092302120024);the China Postdoctoral Science Foundation (Grant No. 20090451007);the Development Program for Outstanding Young Teachers in Harbin Institute of Technology,China (Grant No. HITQNJS. 2009. 030.);the National Basic Research Program of China (Grant No. 2007CB307001);the Program of Excellent Team in Harbin Institute of Technology China

摘　　要：The spontaneous emission decay dynamics of a tripod configuration four-level atom driven by a single laser field is studied. Under different initial conditions, we discuss the effects of quantum interference and detuning of external driving field on atomic spontaneous emission properties. For the larger detuning, the interesting phenomena of the spectral line narrowing are found which stem from the contribution of external driving field.The spontaneous emission decay dynamics of a tripod configuration four-level atom driven by a single laser field is studied. Under different initial conditions, we discuss the effects of quantum interference and detuning of external driving field on atomic spontaneous emission properties. For the larger detuning, the interesting phenomena of the spectral line narrowing are found which stem from the contribution of external driving field.

关 键 词：spontaneous emission spectrum four-level atom driving field 

分 类 号：O562.3[理学—原子与分子物理]