Project supported by the National Basic Research Program of China(Grant No.2012CB921603);the Program for Changjiang Scholars and Innovative Research Team in University(Grant No.IRT13076);the National Natural Science Foundation of China(Grant Nos.61378049 and 10934004);the International Science and Technology Cooperation Program of China(Grant No.2011DFA12490);the Natural Science Foundation of Shanxi Province,China(Grant No.2011011004)
The high precision two-photon excitation measurements for 5S1/2 (Fg = 2) to 5D5/2 (Fe = 4 to 1) of 87Rb are per- formed by using an optical frequency comb. The two counter-propagating femtosecond pulses (5S1/2 →...
Project supported by the National Basic Research Program of China (Grant No. 2012CB921603);the International Science & Technology Cooperation Program of China (Grant No. 2011DFA12490);the National Natural Science Foundation of China (Grant Nos.10934004,60978001,60978018,60808009,61078001,and 61008012);the Natural Science Foundation of Shanxi Province,China (Grant No. 2011011004)
In this paper, ultracold atoms and molecules in a dark magneto-optical trap (MOT) are studied via depumping the cesium cold atoms into the dark hyperfine ground state. The collision rate is reduced to 0.45 s-1 and t...