Abstract Using a three-step laser saturation excitation technique, the saturation effects on the Ba 6pns (J=1) and 6pnd (J=1, 3) autoionization spectra are observed systemically in zero field. These saturation spectra are introduced to determine the high n members of 6pnl (l=0, 2) autoionizing series and are used to analyse the channel interactions among the autoionizing series in zero field. Furthermore, the saturation excitation technique is applied to the electric field case, in which the saturation spectra of Ba 6pnk (|M|=0, 1) autoionizing Stark states are measured. Most of these saturation spectra are observed for the first time so far as we know, which indicate the mixing of the autoionizing states in the electric fields.
Received: 11 March 2006
Revised: 31 August 2006
Accepted manuscript online:
Fund: Project supported by the National Natural Science
Foundation of China (Grant No 10574098), the Natural Science Foundation
(Grant No 05YFJMJC05200) of Tianjin, and the Scientific Research Fund of
Zhejiang Provincial Education Department.
Cite this article:
Li Shi-Ben(李士本) and Dai Chang-Jian(戴长建) Saturation effects on Ba 6pnl (l=0,2) and 6pnk (|M|=0,1) autoionization spectra 2007 Chinese Physics 16 382
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