Laser-induced Fluorescence Spectroscopy of Uranium Monofluoride

作     者：Xi-lin Bai You-long Wang Timothy C.Steimle 白西林;王有龙;Timothy C.Steimle

作者机构：School of Physics and Information EngineeringKey Laboratory of Spectral Measurement and Analysis of Shanxi ProvinceShanxi Normal UniversityLinfen 041004China .School of Molecular ScienceArizona State UniversityTempe 85287USA 

出 版 物：《Chinese Journal of Chemical Physics》 (化学物理学报（英文）)

年 卷 期：2022年第35卷第5期

页      面：754-763,I0011页

核心收录：

学科分类：080901[工学-物理电子学] 081704[工学-应用化学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 0817[工学-化学工程与技术] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 070302[理学-分析化学] 0703[理学-化学] 0803[工学-光学工程] 

基　　金：supported by the National Natural Science Foundation of China(No.21903050) 

主　　题：Laser-induced fluorescence Uranium monofluoride Two-dimensional spectroscopy 

摘      要：The laser-induced fluorescence excitation spectra of uranium monofluoride have been recorded in the range of17000-19000 cm^(-1) using twodimensional *** resolution dispersed fluorescence spectra and time-resolved fluorescence spectroscopy were also *** rotationally resolved bands were intensively analyzed,and all bands were found to be derived from the ground state X(1)4.5 with a rotational constant of 0.23421 cm^(-1).The low-lying electronic states were observed near 435 and 651 cm^(-1) in the dispersed fluorescence spectra,which were assigned as?′=3.5 and 2.5,*** vibrational constants for the X(1)4.5 and X(1)3.5 states were *** branching ratios of the dispersed fluorescence spectra for the[18.62]3.5,[17.72]4.5,and[17.65]4.5 states were *** lifetime of332(9)ns,825(49)ns,and 433(15)ns for the[18.62]3.5,[17.72]4.5,and[17.65]4.5 states were obtained by fitting the time-resolved fluorescence spectroscopy,*** dipole moments were performed using the branching ratios and the radiative lifetimes.