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Collision-induced energy transfer in intermediate excited states of cesium

机译：铯在中等激发态下的碰撞诱导能量转移

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Abstract: We report an application of laser spectroscopy techniques to a study of collision-induced interactions in atomic excited states. Due to pulsed dye laser excitation a considerable selective population of highly excited states of cesium is obtained. Collision-induced transfer of excitation energy between the excited states results in modifications in time and spectral characteristics of observed atomic fluorescence. Quantitative information on the efficiency of collisional processes can be obtained from the measurements of time constants of the time- resolved fluorescence signals and/or from those of the integrated intensities of the fluorescence lines. Both possibilities are used in the present work. Perturbation of nD (n $EQ 8 - 14) and nS (n $EQ 10 - 15) states of cesium in collisions with noble-gas atoms is investigated. The cross sections for the transfer of excitation between fine-structure substrates of the nD states (J mixing) and for the nS $YLD (n-4)F intermultiplet transfer are obtained.!19
机译：摘要：我们报道了激光光谱技术在原子激发态中碰撞诱导相互作用研究中的应用。由于脉冲染料激光激发，获得了大量的铯高激发态选择性。碰撞引起的激发态之间的激发能传递导致时间和观察到的原子荧光光谱特征发生变化。关于碰撞过程的效率的定量信息可以从时间分辨的荧光信号的时间常数的测量和/或从荧光线的积分强度的时间常数的测量中获得。在当前的工作中都使用了这两种可能性。研究了与稀有气体原子碰撞时铯的nD（n EQ 8-14）和nS（n EQ 10-15）状态的扰动。获得了在nD状态（J混合）的精细结构衬底之间的激发转移和nS $ YLD（n-4）F多重转移的横截面！19

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