STUDY OF BRANCHING RATIONS OF 3p_3/2 ~nd (J=1,3) AUTOIONIZING SERIES OF NEUTRAL MAGNESIUM

摘要

With the K matrix and multichannel quantum defect theory, we have studied the branching ratios of 3p_3/2~nd (J=1,3) autoionizing series of Mg above the 3p_1/2 ion limit. The calculations are compared with the previous experi- mental spectra, and the unmeasured branching ratios are presented. The conclusion is that 3p_3/2 nd state prepared by the three-step excitation can form population inversion between the 3p_1/2 and 3s_1/2 ionic states.