Ba原子6pnd自电离态实验研究

采用三步孤立实激发与偏振光激发相结合的技术将 Ba原子分别从中间态6snp1 D2 (n=7～ 41 )和 6snp3D2 (n=7～ 2 9)激发到 6p1 / 2 nd以及 6p3/ 2 nd自电离态 ,从而获得了这 4个系列的自电离光谱。采用 Lorentz线型拟和的方法对这 4个系列的光谱所展现的不同的光谱特性及其所反映的物理意义做了详细的分析

Experimental study on the 6pnd autoionizing states of atomic Ba

The Ba 6p n d autoionizing states have been systematically studied using a three step ICE approach combined with the polearized excitation technique. The 6p n d( J =1,2) autoionizing spectra with n =7～41 excited from 6s n p 1D 2 and with n =7～29 excited from 6s n p 3D 2 have been measured, and the different spectroscopic properities between the 6p 1/2 n d and 6p 3/2 n d series have been detailed discussed by fitting the experimental spectra to signal and multi Lorentz profiles, respectively.