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Resonance-Enhanced Photon Excitation Spectroscopy of the Even-Parity 3p5(2P1/2)nl′ [K′]J (l′=1, 3) Autoionizing Rydberg States of Ar
Chun-yan Li*,Zhi-wei He,Ting-ting Wang,Jun-feng Zhen,Yang Chen*,Jin-song Zhang
Author NameAffiliationE-mail
Chun-yan Li* College of Science, China Agricultural University, Beijing 100083, China chunyanl@cau.edu.cn 
Zhi-wei He College of Science, China Agricultural University, Beijing 100083, China  
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 
Jin-song Zhang Department of Chemistry and Air Pollution Research Center, University of California at Riverside, Riverside, CA 92521, USA  
Abstract:
Metastable 40Ar* atoms are produced in the two metastable states 3p54s[3/2]2 and 3p54s′[1/2]0 in a pulsed DC discharge in a beam, and are subsequently excited to the even-parity autoionizing resonance series 3p5np′ [3/2]1,2, 3p5np′ [1/2]1, and 3p5nf′ [5/2]3 using single photon excitation with a pulsed dye laser. The excitation spectra of the even-parity autoion-izing resonance series from the metastable 40Ar* are obtained by recording the autoionized Ar+ ions with time-of-flight ion detection in the photon energy range of 32500-35600 cm-1 with an experimental bandwidth of <0.1 cm-1. A wealth of autoionizing resonances are newly observed, from which more precise and systematic spectroscopic data of the level energies and quantum defects are derived.
Key words:  Ar, Pulsed DC discharge, Resonance-enhanced photon excitation spectroscopy, Autoionizing Rydberg resonance
FundProject:
Ar原子偶宇称3p5(2P1/2)nl′ [K′]J (l′=1, 3)自电离Rydberg态共振增强激发光谱
李春燕*,何志巍,王婷婷,甄军锋,陈旸*,张劲松
摘要:
用脉冲直流放电产生Ar原子亚稳态3p54s[3/2]2和3p54s′[1/2]0.在单光子32500~35600 cm-1能量范围内, 结合飞行时间质谱技术获得Ar原子共振增强激发光谱.光谱分析表明,所有谱线来源于Ar原子3p54s[3/2]2和3p54s′[1/2]0两个亚稳态吸收单个光子向偶宇称np′、nf′自电离Rydberg态序列的跃迁.实验观测到许多新的自电离能级,并获得更精确和系统的能级位置和量子亏损值数据.
关键词:  Ar原子, 脉冲直流放电, 共振增强光激发谱, 自电离Rydberg态
DOI:10.1063/1674-0068/26/03/259-264
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