Resonance-Enhanced Photon Excitation Spectroscopy of the Even-Parity 3p^5（2P1/2）nl′ [K′]J （l′=1, 3） Autoionizing Rydberg States of Ar  

Ar原子偶字称 3p^5（2P1/2）nl′ [K′]J （l′=1, 3） 自电离Rydberg态共振增强激发光谱

作　　者：李春燕[1] 何志巍[1] 王婷婷[2] 甄军锋[2] 陈旸[2] 张劲松[3] 

机构地区：[1]中国农业大学理学院,北京100083 [2]中国科学技术大学合肥微尺度物质科学国家实验室,化学物理系,合肥230026 [3]美国加州大学河滨分校化学系,空气污染研究中心,河滨市CA92521

出　　处：《Chinese Journal of Chemical Physics》2013年第3期259-264,I0003,共7页化学物理学报（英文）

摘　　要：Metastable 40Ar＊ atoms are produced in the two metastable states 3p54s [3/2]2 and 3p5 4s′ [1/2]0 in a pulsed DC discharge in a beam, and are subsequently excited to the even-parity autoionizing resonance series 3pSnp′[3/2]1,2, 3p5 np′ [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.

关 键 词：AR Pulsed DC discharge Resonance-enhanced photon excitation spectroscopy Autoionizing Rydberg resonance 

分 类 号：O6[理学—化学]