Tuning the velocity and flux of a low-velocity intense source of cold atomic beam
Chen Shu1, Li Ying-Ying1, Yan Xue-Shu1, Xue Hong-Bo2, Feng Yan-Ying1, †
       

(color online) (a) Schematic of the experimental layout for the LVIS system of 87Rb atoms. M: mirror; HWP: half-wave plate; QWP: quarter-wave plate; PMT: photomultipliers. (b) Level diagram for the ground states |1 ⟩ and |2⟩ and the excited state |e⟩. The frequencies ω1 and ω2 are used to induce Raman transitions between the two ground states.