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

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 

作者机构：State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser Spectroscopy Shanxi University Collaborative Innovation Center of Extreme Optics Shanxi University 

出 版 物：《Chinese Physics B》 (中国物理B)

年 卷 期：2017年第26卷第12期

页      面：236-240页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0702[理学-物理学] 

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) 

主　　题：ultracold molecule photoassociation high-resolution spectroscopy C6 coefficient 

摘      要：We present high resolution photoassociation spectroscopy of ultracold23Na133Cs molecules in a long-range c~3Σ~+state below the(3 S1/2+ 6 P3/2) 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 Le Roy–Bernstein formula, we deduce the long-range molecular coefficient C6 and derive the empirical potential energy curve in the long-range region.