摘要
应用可调谐相干ＶＵＶ辐射源和热电离二级管得到了ＣａⅠ的双激发态３ｄ６ｐ和３ｄ４ｆ的高分辨光谱，测出了相应谱线的波长，并测得变窄了的３ｄ６ｐ１Ｐ１的谱线宽度为１．５，明显地观察到３ｄ６ｐ和３ｄ４ｆ三重态中Ｐ态与Ｄ态线型对称性反转的现象，并对上述线宽变窄和线型对称性反转现象的机理作了探讨。
High resolusion experemental spectra are reported for 3d6p and 3d4f doubly excited resonances of Ca Ⅰ. These were obtained by use of a tunable coherent VUV source and a thermionic diode detector. The wave lengths of the spectra and the width of 3d6p 1P 1 were measured, and the value of the width is 1 5. Symmetry of lineshape reversals effect was observed apparently from the P and D triple states of 3d4f as well as 3d6p and was investigated along with the wanishing width effect.
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
1999年第3期381-384,共4页
Journal of Atomic and Molecular Physics
关键词
相干VUV辐射
双激发态
对称性反转效应
碘化钙
coherent VUV radiation
thermionic diode
wanishing width effect
symmetry of lineshape reverals effect
