%A Jia-qi Zhong (仲嘉琪), Geng-hua Yu (余庚华), Jin Wang (王谨), Ming-sheng Zhan (詹明生) %T Determination of the 5d6p 3F4–5d2 3F transition probabilities of Ba I %0 Journal Article %D 2012 %J Front. Phys. %J Frontiers of Physics %@ 2095-0462 %R 10.1007/s11467-011-0181-4 %P 235-238 %V 7 %N 2 %U {https://journal.hep.com.cn/fop/EN/10.1007/s11467-011-0181-4 %8 2012-04-01 %X

Whether the transitions between 6s5d 3D and 5d6p 3F can be used for laser cooling of barium heavily depends upon the transition probabilities of 5d6p 3F-5d23F. Taking the transition 6s5d 3D32-5d6p 3F4 as a scale, the leakage rate of 5d6p 3F4-5d23F was used to evaluate the transition probabilities. 706 nm laser pulses with different durations were applied to a barium atomic beam for 6s5d3D3-5d 2 3F4 optical pumping, and the remaining percentages in 6s5d 3D3 were measured. After exponential fitting, the transition probability of 5d6p 3F4-5d2 3F3,4 was determined to be 2.1(4)×104 s-1, which is in agreement with theoretical calculations using the scaled Thomas–Fermi–Dirac method.