光学薄的Rb蒸汽和低密度Ne的混合系统被570～600nm的激光激发，RbNe分子激发态离解到Rb(5P1/2)或Rb(5P3/2)态，在Ne密度2～8×1017cm-3范围内，测量了分支比Ⅰ(D1)/Ⅰ(D2)，这里Ⅰ(D1)和Ⅰ(D2)分别是RbD1和D2谱线的强度，得到了离解率之比和精细结构转移截面。用共振激发Rb(5PJ)态，也得到了精细结构转移截面，对结果进行了讨论。
An optically thin gaseous mixture of Rb and low-density Ne is excited by 570～600 nm of the CW dye laser, The excited RbNe molecule is dissociated into the Rb(5P1/2) or Rb(5P3/2). The branching ratio is defined as Ⅰ(D1)/Ⅰ(D2) where Ⅰ(D1) and Ⅰ(D2) are measured intensities of the atomic Rb D1 and D2 lines. The branching is determined in the Ne density range 2 to 8 × 1017cm-3. The ratio of the dissociation rates and the fine structure changing cross section are obtained. Fine structrue changing cross section has also been measured for resonant excitation of the Rb 52PJ state, the results are discussed.
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