| Cs(8D,9D)+Na(3S)碰撞激发转移过程 |
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| 引用本文： | 沈异凡,沈晓燕.Cs(8D,9D)+Na(3S)碰撞激发转移过程[J].原子与分子物理学报,2002,19(3):295-298. |
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| 作者姓名： | 沈异凡 沈晓燕 |
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| 作者单位： | 1. 新疆大学物理系,乌鲁木齐,830046
2. 华东理工大学化学系,上海,200237 |
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| 基金项目： | 国家自然科学基金资助项目(19864001) |
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| 摘 要： | 此文报道异核Cs(8D,9D)+Na(3S)→Cs(6P)+Na(3P)的碰撞能量转移过程.两步激发Cs原子到9D3/2(8D3/2)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,讨论了其它过程对率系数的影响.
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| 关 键 词： | 激发态原子 能量合并逆过程 截面 |
| 文章编号： | 1000-0364(2002)03-0295-04 |
| 收稿时间： | 2002/2/25 |
| 修稿时间： | 2002年2月25日 |
Excitation transfer process Cs(8D,9D)+Ns(3S) collisions |
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| SHEN Yi-fan ,SHEN Xiao-yan.Excitation transfer process Cs(8D,9D)+Ns(3S) collisions[J].Journal of Atomic and Molecular Physics,2002,19(3):295-298. |
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| Authors: | SHEN Yi-fan SHEN Xiao-yan |
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| Institution: | SHEN Yi-fan 1,SHEN Xiao-yan 2 |
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| Abstract: | The observation of a heteronuclear reverse energy pooling process is reported. The cross sections for the collision processes Cs(8D,9D)+Na(3S)→Cs(6P)+Na(3P) have been measured. In the experiment the caesium atoms were excited in two steps to the 9D 3/2(8D 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. |
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| Keywords: | Excited atoms Reverse energy pooling Cross sections |
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