文献类型：期刊文献

中文题名：Rb(7D)+Na(3S)碰撞激发转移过程

英文题名：Excitation Transfer Process Rb(7D)+Na(3S) Collisions

作者：沈异凡[1];沈晓燕[2]

机构：[1]新疆大学物理系,新疆乌鲁木齐830046;[2]华东理工大学化学系,上海200237

年份：2003

卷号：23

期号：4

起止页码：634

中文期刊名：光谱学与光谱分析

外文期刊名：Spectroscopy and Spectral Analysis

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；PubMed;

基金：国家自然科学基金 (1 98640 0 1 )资助项目

语种：中文

中文关键词：Rb(7D);Na(3S);碰撞激发转移过程;光学吸收方法;激发态;原子发射

外文关键词：excited atoms; reverse energy pooling; cross sections

摘要：研究了Rb Na异核系统的能量碰撞合并逆过程 (REP)。两步激发Rb原子到 7D3 / 2 态。应用双调制技术探测Na(3Pj)原子发射的荧光 ,基态Na原子密度用光学吸收方法测量。得到了REP率系数 ,讨论了其他过程对率系数的影响。
The observation of a heteronuclear reverse energy pooling process is reported. The cross sections for the collision processes Rb(7D) + Na(3S)-->Rb(5P) + Na(3P) have been measured. In the experiment the rubidium atoms were excited in two steps to the 7D(3/2) state. A double-modulation technique has been used to select the fluorescence contributions at the Na(3P(j)) exit channels due only to the above reactions: The ground state sodium atom density was measured by the absorption of line from a Na hollow-cathode lamp. The measured density and fluorescence intensities have been used to obtain reverse energy pooling rate coefficients. The contribution to the rate coefficients from other processes is discussed.