A study on odd-parity high-lying states of the Sm atom with three-color resonant excitation  

作　　者：LI Ming 1,2,DAI ChangJian 1,2 & XIE Jun 1,2 1 Key Laboratory of Display Materials and Photoelectric Devices,Ministry of Education,Tianjin 300191,China 2 School of Science,Tianjin University of Technology,Tianjin 300384,China 

出　　处：《Science China(Physics,Mechanics & Astronomy)》2011年第6期1124-1130,共7页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No.10574098,10674102);the Natural Science Foundation of Tianjin,China (Grant No.05YFJMJC05200)

摘　　要：The odd-parity high-lying states of the Sm atom are investigated systematically by a three-color resonant excitation scheme with two different excitation paths.The two intermediate states,4f 6 6s7s 7 F 0 and 4f 6 6s7s 7 F 1 are employed for paths I and II,respectively.Fifty-seven bound states are detected with paths I and II in the energy range between 44188 and 45515 cm 1,while 64 autoionizing states are found in the energy range from 45528 to 45761 cm 1.Not only the level energies of all observed states,but also the line widths of autoionizing states are determined.The possible impact of configuration interaction on the line shape of autoionizing states is also discussed.In addition,the total angular momentum is assigned uniquely to most of the states,whereas the information about the relative line intensity of all states is also presented.The odd-parity high-lying states of the Sm atom are investigated systematically by a three-color resonant excitation scheme with two different excitation paths.The two intermediate states,4f 6 6s7s 7 F 0 and 4f 6 6s7s 7 F 1 are employed for paths I and II,respectively.Fifty-seven bound states are detected with paths I and II in the energy range between 44188 and 45515 cm 1,while 64 autoionizing states are found in the energy range from 45528 to 45761 cm 1.Not only the level energies of all observed states,but also the line widths of autoionizing states are determined.The possible impact of configuration interaction on the line shape of autoionizing states is also discussed.In addition,the total angular momentum is assigned uniquely to most of the states,whereas the information about the relative line intensity of all states is also presented.

关 键 词：high-lying states odd-parity the Sm atom resonant excitation 

分 类 号：O562.4[理学—原子与分子物理]