Abstract:The rate coefficients for energy-pooling collisions K(4P)+Cs(5D)→Cs(6S)+K(4D, 6S) in the K-Cs vapor mixture were measured relative to a known energy-pooling rate coefficient of a homonuclear reaction [i.e., Cs(6P)+Cs(5D)→Cs(6S)+Cs(7DJ)]. Populations of the Cs(6P, 5D) and K(4P) states were produced by photodissociation of K2 and Cs2 molecules through the use of a dye laser radiation. The resulting fluorescence included the direct components emitted in the decay of the excited states produced by photodissociation and the induced components arising from the collisionally populated states. By combining relative intensities of the components with the effective lifetimes of Cs(6P) and K(4P) states, the rate coefficients (in units of 10-9 cm3·s-1) for the heteronuclear energy-pooling were found to be 2.6 and 3.6, respectively. The contribution to the rate coefficients from other processes are discussed.
普拉提·艾合买提, 戴 康,陆新红,沈异凡* . K-Cs混合蒸气中K(4P)+Cs(5D)碰撞能量合并[J]. 光谱学与光谱分析, 2005, 25(04): 491-493.
Pulati·AIHEMAITI, DAI Kang, LU Xin-hong, SHEN Yi-fan* . Energy Pooling Collisions for K(4P)+Cs(5D) in a K-Cs Mixture. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(04): 491-493.
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