Laser intensity induced transparency in atom-molecular transition process  

作　　者：Jie Ma Yuqing Li Jizhou Wu Liantuan Xiao Suotang Jia 

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University

出　　处：《Chinese Science Bulletin》2014年第22期2731-2735,共5页

基　　金：supported by the National Basic Research Program of China (2012CB921603);the National High Technology Research and Development Program of China (2011AA010801);the Program for Changjiang Scholars and Innovative Research Team in University (IRT13076);the International Science and Technology Cooperation Program of China (2011DFA12490);the National Natural Science Foundation of China (NSFC) (61378014, 61308023 and 10934004);the NSFC Project for Excellent Research Team (61121064);the Specialized Research Fund for the Doctoral Program of Higher Education of China (20131401120012);the Natural Science Foundation (NSF) for Young Scientists of Shanxi Province (2013021005-1)

摘　　要：We propose a new transparency mechanism,which is based on photoassociation(PA)laser intensity induced transitional frequency shift for ultracold cesium molecules formed in PA scheme.The PA laser intensity is supposed to change before the atom-molecule resonance.Thus,a remarkable transparent effect for PA laser is expected to appear in the vicinity of original resonant transitional line,where the variation of PA laser intensity induces the shift of the excited molecular levels.The mechanism is different from electromagnetically induced transparency effect and interesting for further research on the scattering length for cesium atomic condensate.We propose a new transparency mechanism, which is based on photoassociation （PA） laser intensity induced transitional frequency shift for ultracold cesium molecules formed in PA scheme. The PA laser intensity is supposed to change before the atommolecule resonance. Thus, a remarkable transparent effect for PA laser is expected to appear in the vicinity of original resonant transitional line, where the variation of PA laser intensity induces the shift of the excited molecular levels. The mechanism is different from electromagnetically induced transparency effect and interesting for further research on the scattering length for cesium atomic condensate.

关 键 词：激光强度 电磁感应 原子分子 跃迁 透明效果 分子水平 散射长度 PA 

分 类 号：O561[理学—原子与分子物理]