| Ba原子6pnd(J=1, 3)自电离光谱的实验研究 |
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| 引用本文： | 袁卫国,戴长建,靳 嵩,赵洪英,关 锋.Ba原子6pnd(J=1, 3)自电离光谱的实验研究[J].物理学报,2008,57(7):4076-4082. |
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| 作者姓名： | 袁卫国 戴长建 靳 嵩 赵洪英 关 锋 |
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| 作者单位： | 天津理工大学理学院，天津 300384 |
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| 基金项目： | 国家自然科学基金(批准号：10574098，10674102)，天津市自然科学基金(批准号：05YFJMJC05200)和天津理工大学特聘教授专项科研基金(批准号：069-000008)资助的课题. |
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| 摘 要： | 采用三台可调谐激光实施孤立实激发，分三步将处于基态的Ba原子激发到6p1/2nd(J=1,3)和6p3/2nd(J=1,3)自电离态上，获得了分别从6snd1D2(n=7—15)和6snd3D2(n=7—12) 激发而得到的6p1/2nd(J=1,3)和6p3/2nd (J=1,3)自电离光谱，重点对主量子数n较低的自电离态进行了实验研究. 通过光谱的线形拟合得到了上述能级的位置和宽度等数据，进而获得了量子亏损和约化宽度等信息. 通过对不同系列的自电离光谱的分析和比较，详细讨论了这些自电离态的光谱特征及其复杂光谱结构的成因.
关键词：
孤立实激发
组态相互作用
自电离态
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| 关 键 词： | 孤立实激发 组态相互作用 自电离态 |
| 收稿时间： | 2007-09-11 |
Study of Ba 6pnd(J=1, 3)autoionizing states |
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| Yuan Wei-Guo,Dai Chang-Jian,Jin Song,Zhao Hong-Ying and Guan Feng.Study of Ba 6pnd(J=1, 3)autoionizing states[J].Acta Physica Sinica,2008,57(7):4076-4082. |
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| Authors: | Yuan Wei-Guo Dai Chang-Jian Jin Song Zhao Hong-Ying and Guan Feng |
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| Abstract: | Ba 6p3/2nd (J=1,3) autoionizing states, especially those with lower principal quantum numbers, have been experimentally studied using the isolated core excitation scheme with three dye lasers. Level energies and widths of 6p1/2nd and 6p3/2nd (J=1,3)autoionizing states, which are excited from 6snd1D2 Rydberg states with n=7—15 and 6snd3D2 Rydberg states with n=7—12, are reported. Examination of autoionizing states with lower principal quantum number (n=7—9) exhibited the admixture between states converging to 6p3/2 and 6p1/2 ionization threshold. Moreover, some discussion is made based on comparison between different autoionizing series, so that one may explain the complex spectral structures of these states. |
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| Keywords: | isolated-core excitation configuration interaction autoionizing states |
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