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Line-profile analysis of excitation spectroscopy in the even 4p5(2P1/2)nl′ [K′] J (l′ = 1,3) autoionizing resonances of Kr

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Abstract

The even-parity autoionizing resonance series 4p5 np′ [3/2]1,2, [1/2]1, and 4p5 nf′ [5/2]3 of krytpon have been investigated by laser excitation from the two metastable states 4p55s [3/2]2 and 4p55s′ [1/2]0 in the photon energy region of 29000–40000 cm−1 at experimental bandwidth of ∼0.1 cm−1. The excitation spectra of the even-parity autoionizing resonance series, most of which are experimentally studied for the first time in this work, show typical asymmetric line shapes. Complementary information on level energies, quantum defects, line profile indices and resonance widths, resonance lifetimes and reduced widths of the autoionizing resonances are derived by Fano-type line-shape analyses of the experimental results. Results from this work indicate that the line profile index (q) and the resonance width (Γ) are approximately proportional to the effective principal quantum number (n*); the line separation of the 4p5 np′ autoionizing resonances is also in good agreement with theoretical model.

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Authors and Affiliations

  1. College of Science, China Agricultural University, Beijing, 100083, China

    ChunYan Li

  2. Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China

    TingTing Wang, JunFeng Zhen & Yang Chen

Authors
  1. ChunYan Li
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  2. TingTing Wang
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  3. JunFeng Zhen
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  4. Yang Chen
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Correspondence to ChunYan Li or Yang Chen.

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Li, C., Wang, T., Zhen, J. et al. Line-profile analysis of excitation spectroscopy in the even 4p5(2P1/2)nl′ [K′] J (l′ = 1,3) autoionizing resonances of Kr. Sci. China Chem. 56, 1623–1632 (2013). https://doi.org/10.1007/s11426-013-4927-4

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