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arXiv 2007.06863physics.atom-ph
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硒的共振Laser电离光谱

Resonance Laser Ionization Spectroscopy of Selenium

R. Li, Y. Liu, M. Mostamand, J. Lassen

摘要:

用分步共振激光电离方法研究了硒的光电离光谱。通过不同的激发方案测量了Rydberg系列4s $^2$ 4 p $^3$($^4$ S)np $^3$ P $_{0,1,2}$和4s $^2$ 4 p $^3$($^4$ S)np $^5$ P $_{1,2,3}$。用Rydberg系列4s $^2$ 4p $^3$($^4$ S)np $^3$ P $_2$(n=15-33)测定Se的电离势,精度提高到76658.15(2)$_{stat}$(4)$_{sys}$ cm $^{-1}$,解决了以往文献中的不一致。获得了Se离子态4s $^2$ 4 p $^3$($^2$ D $_{3/2}$)和4s $^2$ 4 p $^3$($^2$ D $_{5/2}$)的IP和两个相邻收敛极限之间的自电离(AI)谱。共观测到八个AI里德堡系列,并进行了归属。

英文摘要:

Photoionization spectra of Se have been studied by step-wise resonance laser ionization. The Rydberg series 4s$^2$4p$^3$($^4$S)np $^3$P$_{0,1,2}$ and 4s$^2$4p$^3$($^4$S)np $^5$P$_{1,2,3}$ were measured via different excitation schemes. Using the Rydberg series 4s$^2$4p$^3$($^4$S)np $^3$P$_2$ with n=15-33, the ionization potential of Se was determined with improved precision to 76658.15(2)$_{stat}$(4)$_{sys}$ cm$^{-1}$, which resolved the discrepancy in previous literatures. Autoionizing (AI) spectra between the IP and two neighboring converging limits of the Se ionic states 4s$^2$4p$^3$($^2$D$_{3/2}$) and 4s$^2$4p$^3$($^2$D$_{5/2}$) were obtained. In total eight AI Rydberg series have been observed, measured and assigned.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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