期刊
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
卷 111, 期 1, 页码 63-70出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jqsrt.2009.07.008
关键词
Autoionizing state; Spectroscopic property; Sm atom
资金
- National Natural Science Foundation of China [10574098, 10674102]
- Natural Science Foundation of Tianjin [05YFJMJC05200]
In this work, 4f (6)6pnl and 4f (5)d6snl (l = 0,2) autoionizing states of the samarium (Sm) atom, especially those with lower principal quantum number, have been studied, using the isolated-core excitation scheme with three dye lasers. In the energy region between 57 990 and 61030 cm(-1), there are 74 autojonizing states of the Sm atom observed. These states can be classified into the autoionization series converging to four different ionization limits. in most cases, the line shapes of these autojonizing states are nearly symmetric, from which the level energies and widths can be easily obtained by fitting the experimental spectra to the Lorentzian profiles. In addition, several spectroscopic properties of these autoionizing states, such as configuration interaction are also, discussed. (C) 2009 Elsevier Ltd. All rights reserved.
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