中国物理B ›› 2007, Vol. 16 ›› Issue (2): 382-391.doi: 10.1088/1009-1963/16/2/018

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Saturation effects on Ba 6pnl (l=0,2) and 6pnk (|M|=0,1) autoionization spectra

戴长建1, 李士本2   

  1. (1)College of Science, Tianjin University of Technology, Tianjin 300191, China; (2)Department of Physics, Wenzhou University, Wenzhou 325027, China
  • 收稿日期:2006-03-11 修回日期:2006-08-31 出版日期:2007-02-20 发布日期:2007-02-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10574098), the Natural Science Foundation (Grant No 05YFJMJC05200) of Tianjin, and the Scientific Research Fund of Zhejiang Provincial Education Department.

Saturation effects on Ba 6pnl (l=0,2) and 6pnk (|M|=0,1) autoionization spectra

Li Shi-Ben(李士本)a)† and Dai Chang-Jian(戴长建)b)   

  1. a Department of Physics, Wenzhou University, Wenzhou 325027, China; b College of Science, Tianjin University of Technology, Tianjin 300191, China
  • Received:2006-03-11 Revised:2006-08-31 Online:2007-02-20 Published:2007-02-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10574098), the Natural Science Foundation (Grant No 05YFJMJC05200) of Tianjin, and the Scientific Research Fund of Zhejiang Provincial Education Department.

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摘要： Using a three-step laser saturation excitation technique, the saturation effects on the Ba 6pns (J=1) and 6pnd (J=1, 3) autoionization spectra are observed systemically in zero field. These saturation spectra are introduced to determine the high n members of 6pnl (l=0, 2) autoionizing series and are used to analyse the channel interactions among the autoionizing series in zero field. Furthermore, the saturation excitation technique is applied to the electric field case, in which the saturation spectra of Ba 6pnk (|M|=0, 1) autoionizing Stark states are measured. Most of these saturation spectra are observed for the first time so far as we know, which indicate the mixing of the autoionizing states in the electric fields.

关键词: saturation excitation, isolated-core excitation, autoionizing state, electric field effect

Abstract: Using a three-step laser saturation excitation technique, the saturation effects on the Ba 6pns (J=1) and 6pnd (J=1, 3) autoionization spectra are observed systemically in zero field. These saturation spectra are introduced to determine the high n members of 6pnl (l=0, 2) autoionizing series and are used to analyse the channel interactions among the autoionizing series in zero field. Furthermore, the saturation excitation technique is applied to the electric field case, in which the saturation spectra of Ba 6pnk (|M|=0, 1) autoionizing Stark states are measured. Most of these saturation spectra are observed for the first time so far as we know, which indicate the mixing of the autoionizing states in the electric fields.

Key words: saturation excitation, isolated-core excitation, autoionizing state, electric field effect

中图分类号:  (Autoionization)

  • 32.80.Zb
32.30.-r (Atomic spectra?) 32.60.+i (Zeeman and Stark effects) 32.80.Xx (Level crossing and optical pumping)