Abstract We have investigated the photoionization properties of an atom with a ladder coupling scheme involving two autoionizing states coupled to each other. The effects of the coherent coupling between two autoionizing states and between the low-lying autoionizing state and the continuum on the ionization yield are discussed. The conditions leading to atomic coherent population trapping and the coherent population trapping states are given explicitly.
Received: 31 December 2001
Revised: 01 April 2002
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No 60078016) and the Key Research Programme of the National Ministry of Education, China.
Cite this article:
Guo Hong (郭红), Li Gao-Xiang (李高翔), Peng Jin-Sheng (彭金生) Photoionization properties of an atom with two autoionizing states 2002 Chinese Physics 11 694
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