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Line-profile Analysis of Excitation Spectroscopy in Even 5p5(2P1/2)nl' [K']J (l'=1, 3) Autoionizing Resonances of Xe
Chun-yan Li*,Ting-ting Wang,Jun-feng Zhen,Yang Chen*,Zhi-wei He
Author NameAffiliationE-mail
Chun-yan Li* College of Science, China Agricultural University, Beijing 100083, China chunyanl@cau.edu.cn 
Ting-ting Wang Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
Jun-feng Zhen Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China  
Yang Chen* Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China yangchen@ustc.edu.cn 
Zhi-wei He College of Science, China Agricultural University, Beijing 100083, China  
Abstract:
The even-parity autoionizing resonance series 5p5np'[3/2]1, [1/2]1, and 5p5nf'[5/2]3 of xenon have been investigated, excited from the two metastable states 5p56s[3/2]2 and 5p56s'[1/2]0 in the photon energy range of 28000-42000 cm-1 with experimental bandwidth of ~0.1 cm-1. The excitation spectra of the even-parity autoionizing resonance series show typical asymmetric line shapes. New level energies, quantum defects, line profile indices and resonance widths, resonance lifetimes and reduced widths of the autoionizing resonances are derived by a Fano-type line-shape analysis. The line profile index and the resonance width are shown to be approximately proportional to the effective principal quantum number. The line separation of the 5p5np' autoionizing resonances is discussed.
Key words:  Xenon, Autoionizing resonance, Fano-type lineshape
FundProject:
Xe原子偶宇称5p5(2P1/2)nl' [K']J (l'=1, 3)自电离态共振增强激发光谱线形研究
李春燕*,王婷婷,甄军锋,陈旸*,何志巍
摘要:
利用脉冲直流放电技术制备的Xe原子亚稳态5p56s[3/2]2和5p56s'[1/2]0, 在单光子为28000~42000 cm-1能量范围内, 结合飞行时间质谱技术获得Xe原子5p5np'[3/2]1,[1/2]1和5p5nf'[5/2]3自电离Rydberg态的共振增强激发光谱. 根据Fano线形公式对呈现明显不对称线形的激发谱进行系统地分析,获得系统的能级位置、量子亏损、线性因子、共振宽度、共振态寿命和衰减宽度等数据,其中线形因子和共振宽度相对有效量子数呈线性关系. 另外分析了5p5np'序列的能级间距.
关键词:  Xe原子,自电离态,Fano线形
DOI:10.1063/1674-0068/26/04/374-380
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