中国物理B ›› 1992, Vol. 1 ›› Issue (1): 19-26.doi: 10.1088/1004-423X/1/1/003
周海军, 许祥源, 黄雯, 李良权, 陈瓞延
ZHOU HAI-JUN (周海军), XU XIANG-YUAN (许祥源), HUANG WEN (黄雯), LI LIANG-QUAN (李良权), CHEN DIE-YAN (陈瓞延)
摘要: This paper describes the investigation of high-excited states of Dy. which includes the measurement of high Rydberg states and autoionizing states, by means of laser resonance ionization spectroscopy (LRIS). Two high Rydberg series (n>40), 4f10(5I8) 6sns and 4f10(5I8) 6snd, have been obtained by exciting the state of 4f10(5I8) 6s6p (3P02) 5I08 using two-step laser excitation-electric field ionization method. With the data obtained, we determined the first ionization potential of Dy. It is 47901.7±0.6 cm-1, that is. about one order more accurate than the results given in the literature. Using the same technique, we found 97 autoionizing states by exciting the state of 4f95d6s(7H07).
中图分类号: (Photoionization of atoms and ions)