One-, two- and three-photon ionization of calcium
作者： S Benec'h , H Bachau
DOI: 10.1088/0953-4075/37/17/008
关键词: Configuration interaction 、 Atomic physics 、 Physics 、 Ground state 、 Atom 、 Ionization 、 Photoionization 、 Photon 、 Excitation 、 Electronic structure
摘要: One-, two- and three-photon ionization of the calcium atom from its ground state has been analysed in perturbative regime by studying electronic structure employing B-spline basis functions a configuration interaction procedure based on frozen-core Hartree–Fock approach combined with model potentials. We investigate photoionization spectrum region located between 4s 2Se 3d 2De thresholds focus our attention features originating excitation autoionizing states. Good quantitative agreement is obtained available theoretical experimental data for one-photon two-photon ionization. The 1Po 1Fo series states also reported.
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