| 由混合共振激发产生钠分子扩散带的时间特性研究 |
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| 引用本文： | 黄小仙,秦莉娟.由混合共振激发产生钠分子扩散带的时间特性研究[J].华东师范大学学报(自然科学版),1995(1):48-53. |
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| 作者姓名： | 黄小仙 秦莉娟 |
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| 作者单位： | 上海华东师大物理系，中科院上海光机所，华东师大量子光学开放实验室，河南信阳师范学院物理系 |
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| 摘 要： | 本文首次报导了由ＹＡＧ泵浦染料激光激励钠蒸气产生钠分子扩散带的混合共振激发机制。考虑电离效应之后，在一定的近似条件下推导出由混合共振激发产生的扩散带信号强度随时间变化的数学表达式，对由得到的扩散信号时间谱进行数值拟合，获得了在一定温度下混合共振过程所牵涉各态对应的一组有效寿命，由此算出这些态无碰撞时的寿命及相应的碰撞截面，并分析了结果的合理性。
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| 关 键 词： | 扩散带 混合共振 时间谱 铀分子 量子化学 |
The Time Behaviour of the Diffuse Band Generated by Hybrid Resonance in Na_2-Na |
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| Huang Xiaoxian, Qin Lijuan, Zhou Guoyun, Qian Zhuliang, Wang Zhugen.The Time Behaviour of the Diffuse Band Generated by Hybrid Resonance in Na_2-Na[J].Journal of East China Normal University(Natural Science),1995(1):48-53. |
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| Authors: | Huang Xiaoxian Qin Lijuan Zhou Guoyun Qian Zhuliang Wang Zhugen |
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| Abstract: | This paper firstly reports the experimental results of the diffuse band generated by hybrid resonance in the sodium vapour. Considering the effect of ionization and some physical approximation, the mathematical expression about time dependance of signal intensity generated by hybrid resonance is deduced. By computer numerical fitting experimental with theoretical results, the effective lifetime of some relevent energy levesl is obtained, then lifetime of these levels in the case of no collision and corresponding collisional cross section are deduced. The rationalization of these results is analysed. |
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| Keywords: | Na_2 diffuse band hybrid resonance time spectra |
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