Resonance-enhanced photon excitation spectroscopy of the even-parity autoionizing Rydberg states of Kr |
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| Authors: | ChunYan Li TingTing Wang JunFeng Zhen Qun Zhang Yang Chen |
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| Affiliation: | (1) Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China;(2) College of Science, China Agricultural University, Beijing, 100083, China |
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| Abstract: | Kr atoms were produced in their metastable states 4p55s [3/2]2 and 4p55s’ [1/2]0 in a pulsed DC discharge in a beam, and subsequently excited to the even-parity autoionizing Rydberg states 4p5 np′ [3/2]1,2, [1/2]1 and 4p5 nf′ [5/2]3 using single photon excitation. The excitation spectra of the even-parity autoionizing resonance series from the metastable Kr were obtained by recording the autoionized Kr+ ions with time-of-flight ion detection in the photon energy range of 29000–40000 cm−1. A wealth of autoionizing resonances were newly observed, from which more precise and more systematic spectroscopic data of the level energy and quantum defects were derived. Supported by the National Natural Science Foundation of China (Grant No. 20673107), the National Key Basic Research Special Foundation of China (Grant No. 2007CB815203), and Chinese Academy of Sciences (Grant No. KJCX2-SW-H08) |
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| Keywords: | Kr pulsed DC discharge resonance-enhanced photon excitation spectroscopy autoionizing resonance |
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