中国物理B ›› 2026, Vol. 35 ›› Issue (7): 73201-073201.doi: 10.1088/1674-1056/ae12dd

• • 上一篇    下一篇

Spectroscopic study of odd-parity excited levels of atomic gadolinium in the 28700-31500 cm-1 region using a three-color three-step resonance ionization pathway

Jun-Yao Zhang(张钧尧)1,2,3, Kai-Chen Ma(马恺宸)2, Jing-Yi Xiong(熊静逸)2, Li-De Wang(王立德)1,2,3, Cai-Hua Zhu(朱才华)2, Jun-Jie Chai(柴俊杰)1,2,3, and Yun-Fei Li(李云飞)1,2,†   

  1. 1 National Key Laboratory of Particle Transport and Separation Technology, Tianjin 300180, China;
    2 Research Institute of Physical and Chemical Engineering of Nuclear Industry, Tianjin 300180, China;
    3 Tianjin Key Laboratory of Stable Isotope Materials Technology, Tianjin 300180, China
  • 收稿日期:2025-09-06 修回日期:2025-10-10 接受日期:2025-10-14 发布日期:2026-07-15
  • 通讯作者: Yun-Fei Li E-mail:Ipce_liyf@mails.cneic.com.cn
  • 基金资助:
    This research was supported by the Tianjin Science and Technology Program Project (No. 24ZXZSSS00530).

Spectroscopic study of odd-parity excited levels of atomic gadolinium in the 28700-31500 cm-1 region using a three-color three-step resonance ionization pathway

Jun-Yao Zhang(张钧尧)1,2,3, Kai-Chen Ma(马恺宸)2, Jing-Yi Xiong(熊静逸)2, Li-De Wang(王立德)1,2,3, Cai-Hua Zhu(朱才华)2, Jun-Jie Chai(柴俊杰)1,2,3, and Yun-Fei Li(李云飞)1,2,†   

  1. 1 National Key Laboratory of Particle Transport and Separation Technology, Tianjin 300180, China;
    2 Research Institute of Physical and Chemical Engineering of Nuclear Industry, Tianjin 300180, China;
    3 Tianjin Key Laboratory of Stable Isotope Materials Technology, Tianjin 300180, China
  • Received:2025-09-06 Revised:2025-10-10 Accepted:2025-10-14 Published:2026-07-15
  • Contact: Yun-Fei Li E-mail:Ipce_liyf@mails.cneic.com.cn
  • Supported by:
    This research was supported by the Tianjin Science and Technology Program Project (No. 24ZXZSSS00530).

摘要: The three-color, three-step resonance ionization spectroscopy technique was employed to investigate the odd-parity excited states of gadolinium in the 28700-31500 cm$^{-1}$ energy region. Spectra scanned without $\lambda _1$ led to the identification of 101 interference peaks, which were excluded from subsequent studies. A total of 40 odd-parity excited states were observed from scans of nine even-parity lower levels, including 19 states reported here for the first time. Unique $J$ values were assigned to 39 levels using the electric dipole selection rule. Comparison with previous studies confirms the reliability of the present results, with the absolute energy accuracy estimated to be better than $\pm 0.1$ cm$^{-1}$.

关键词: atomic gadolinium, excited states, odd-parity, resonance ionization

Abstract: The three-color, three-step resonance ionization spectroscopy technique was employed to investigate the odd-parity excited states of gadolinium in the 28700-31500 cm$^{-1}$ energy region. Spectra scanned without $\lambda _1$ led to the identification of 101 interference peaks, which were excluded from subsequent studies. A total of 40 odd-parity excited states were observed from scans of nine even-parity lower levels, including 19 states reported here for the first time. Unique $J$ values were assigned to 39 levels using the electric dipole selection rule. Comparison with previous studies confirms the reliability of the present results, with the absolute energy accuracy estimated to be better than $\pm 0.1$ cm$^{-1}$.

Key words: atomic gadolinium, excited states, odd-parity, resonance ionization

中图分类号:  (Autoionization)

  • 32.80.Zb
82.80.Ms (Mass spectrometry (including SIMS, multiphoton ionization and resonance ionization mass spectrometry, MALDI)) 42.55.Mv (Dye lasers)