华东师范大学学报（自然科学版）Issue(3)：43-50,8.DOI:10.3969/j.issn.1000-5641.2025.03.006
PbF分子A2∑+—X2Π1/2跃迁光谱的光谱研究
Spectroscopic study on the A2∑+-X2Π1/2 transition spectra of PbF molecules
摘要
Abstract
This study presents the preparation of PbF radicals via the reaction of Pb plasma,generated by the laser ablation of lead,with SF6/Ar gas mixture.Moreover,the vibrational-rotational bands of the A2∑+-X2Π1/2 transition of PbF molecule were measured using laser induced fluorescence spectroscopy.The molecular constants T0,B,D,γ and p for the vibrational levels v=0 and v=1 of the PbF molecule in the A2∑+state.The data provide effective information for electronic electric dipole moment(eEDM)measurement.Additionally,the fluorescence lifetime of the PbF molecule in the v=0 vibrational state of the A2∑+state was measured.Finally,the Franck-Condon factors for the A2∑+-X2Π1/2 transition were calculated using the Morse potential and Rydberg-Klein-Rees inversion(RKR)/LEVEL methods,indicating that PbF molecules are unsuitable for laser cooling research.The above results enrich the understanding of PbF molecular spectrum and provide key references for future studies on precise eEDM measurements.关键词
电子电偶极矩/PbF分子/激光诱导荧光光谱技术/光谱常数/Frank-Condon因子Key words
electronic electric dipole moment(eEDM)/PbF molecule/laser induced fluorescence spectroscopy technology/spectral constants/Frank-Condon factors分类
物理学引用本文复制引用
潘佳煖,朱成成,汪海玲..PbF分子A2∑+—X2Π1/2跃迁光谱的光谱研究[J].华东师范大学学报（自然科学版）,2025,(3):43-50,8.基金项目
国家自然科学基金(11674096) （11674096）
