钡原子三重态的碰撞诱导受激辐射

Stimulated collision-induced fluorescence of barium triplex-states

在XeCl激光光泵的Ba蒸气中,首次观察到波长为551.9nm、606.3nm及611.1nm的受激辐射,它们分别对应于Ba原子的三重态跃迁:6s6d^3D_2—6s6p^3P_1、5d6p^3P_2-6s5d^3D_3及5d6p^3P_1—6s5d^3D_2.对于Ba原子的自旋禁戒跃迁6s7p^1P_1—6s6d^3D_2的可能性进行了探讨.

The stimulated collision-induced fluorescence (SCF) at wavelengths of 551.9, 606.3, and 611.1 nm was observed from XeCl-laser pumped barium vapor for the first time. They correspond to the following transitions of barium atoms respectively: 6s6d3D2-6s6p3P1, 5d6p2-6s5d3D3, and 5d6p2P1-6s5d3D2. The possibility of exis-tance of the barium spin-forbidden transition 6s7d1dD-6s6p3P2 was proposed and discussed.