Beam-laser lifetime measurements for four resonance levels of Yb II
Beam-laser lifetime measurements for four resonance levels of Yb II
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Yb II 四个共振能级的光束激光寿命测量
DOI：
10.1088/0953-4075/26/20/003
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Q. Ji
中科院分区：
文献类型：
--
作者：
R. W. Berends;E. H. Pinnington;B. Guo;Q. Ji
用激光激发快光束Yb+，测定了27062 cm-1(8.10+或-0.13 ns)、33654 cm-1(37.7+或-0.5 ns)、34575 cm-1(28.6+或-0.4 ns)和44941 cm-1(20.3+或-0.3 ns)YbⅡ能级的寿命。这些结果与以前的测量结果和Fawcett和Wilson(1991年)的大量计算结果相比较，后者在27062 cm-1的能级上与之相当接近，而在其他三个能级上则有明显的不一致。
Laser excitation of a fast beam of Yb+ ions has been used to determine the lifetimes of the Yb II levels at 27062 cm-1 (8.10+or-0.13 ns), 33654 cm-1 (37.7+or-0.5 ns), 34575 cm-1 (28.6+or-0.4 ns) and 44941 cm-1 (20.3+or-0.3 ns). These results are compared with previous measurements and with the extensive calculation of Fawcett and Wilson (1991), with whom fair agreement is found for the level at 27062 cm-1 but marked disagreement is found for the other three levels.