Highly sensitive photoassociation spectroscopy of ultracold 23Na133Cs molecular long-range states below the 3S1/2＋6P3/2 limit  

作　　者：刘艳艳 武寄洲 刘文良 王晓锋 王文浩 马杰 肖连团 贾锁堂 

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China [2]Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

出　　处：《Chinese Physics B》2017年第12期232-236,共5页中国物理B（英文版）

基　　金：Project supported by the National Key Research and Development Program of China(Grant No.2017YFA0304203);the Chang Jiang Scholars and Innovative Research Team in the University of the Ministry of Education of China(Grant No.IRT13076);the National Natural Science Foundation of China(Grant Nos.91436108,61378014,61675121,61705123,and 11434007);the Fund for Shanxi“1331 Project”Key Subjects Construction,China;the Foundation for Outstanding Young Scholars of Shanxi Province,China(Grant No.201601D021001)

摘　　要：We present high resolution photoassociation spectroscopy of ultracold 23Na133Cs molecules in a long-range c3∑＋ state below the （3S1/2 ＋ 6P3/2） asymptote. We perform photoassociation spectroscopy in a dual-species magneto-optical trap （MOT） and detect the photoassociation resonances using trap-loss spectroscopy. By fitting the experimental data with the semi-classical LeRoy-Bernstein formula, we deduce the long-range molecular coefficient C6 and derive the empirical potential energy curve in the long-range region.We present high resolution photoassociation spectroscopy of ultracold 23Na133Cs molecules in a long-range c3∑＋ state below the （3S1/2 ＋ 6P3/2） asymptote. We perform photoassociation spectroscopy in a dual-species magneto-optical trap （MOT） and detect the photoassociation resonances using trap-loss spectroscopy. By fitting the experimental data with the semi-classical LeRoy-Bernstein formula, we deduce the long-range molecular coefficient C6 and derive the empirical potential energy curve in the long-range region.

关 键 词：ultracold molecule PHOTOASSOCIATION high-resolution spectroscopy C6 coefficient 

分 类 号：O561[理学—原子与分子物理]