中国物理B ›› 2009, Vol. 18 ›› Issue (9): 3828-3832.doi: 10.1088/1674-1056/18/9/035

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Radiative lifetime measurements of odd-parity high-excited levels of Sn I by time-resolved laser spectroscopy

徐嘉鑫, 凤艳艳, 孙桂娟, 戴振文   

  1. Department of Physics, Jilin University, Changchun 130021, China Key Lab of Coherent Light, Atomic and Molecular Spectroscopy, Ministry of Education, Changchun 130021, China
  • 收稿日期:2009-04-14 修回日期:2009-04-20 出版日期:2009-09-20 发布日期:2009-09-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10574056) and the program for New Century Excellent Talents in University, China (Grant No NCET-05-0302).

Radiative lifetime measurements of odd-parity high-excited levels of Sn I by time-resolved laser spectroscopy

Xu Jia-Xin(徐嘉鑫), Feng Yan-Yan(凤艳艳), Sun Gui-Juan(孙桂娟), and Dai Zhen-Wen(戴振文)†   

  1. Department of Physics, Jilin University, Changchun 130021, China Key Lab of Coherent Light, Atomic and Molecular Spectroscopy, Ministry of Education, Changchun 130021, China
  • Received:2009-04-14 Revised:2009-04-20 Online:2009-09-20 Published:2009-09-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10574056) and the program for New Century Excellent Talents in University, China (Grant No NCET-05-0302).

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摘要： Natural radiative lifetimes of five higher-lying odd-parity levels 5p7s 3P1o, 5p5d 1P1o, 5p6d 3F2o, 3D1o and 3F3o in neutral tin are measured by the time-resolved laser-induced fluorescence (TR-LIF) technique and the atomic beam method. All these lifetimes are not longer than 100 ns and they are found to be shorter than the lifetimes of even-parity levels in the same energy region. The results reported in this paper provide important transition parameters for highly-excited atomic Sn, which may be useful for theoretically calculating excited heavy atoms.

Abstract: Natural radiative lifetimes of five higher-lying odd-parity levels 5p7s 3P1o, 5p5d 1P1o, 5p6d 3F2o, 3D1o and 3F3o in  neutral tin are measured by the time-resolved laser-induced fluorescence (TR-LIF) technique and the atomic beam method. All these lifetimes are not longer than 100 ns and they are found to be shorter than the lifetimes of even-parity levels in the same energy region. The results reported in this paper provide important transition parameters for highly-excited atomic Sn, which may be useful for theoretically calculating excited heavy atoms.

Key words: radiative lifetime, atomic Sn, highly-excited level, laser spectroscopy

中图分类号:  (Oscillator strengths, lifetimes, transition moments)

  • 32.70.Cs
07.57.-c (Infrared, submillimeter wave, microwave and radiowave instruments and equipment) 32.50.+d (Fluorescence, phosphorescence (including quenching))