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荧光法测定镧原子高激发态的超精细结构
Hyperfine Structure Measurements on High-Lying Levels of Lanthanum by Laser Fluorescence Spectroscopy
【摘要】 在La空心阴极灯中,用荧光法测定了二级跃迁(16856cm-1→34272cm-1),(20082cm-1→26853cm-1)和(20082cm-1→37544cm-1)的超精细结构光谱,得到了34272cm-1,36853cm-1和37544cm-1能级的A常数,这些镧原子高激发态超精细结构数据是首次报道.
【Abstract】 By using laser fluorescence spectroscopy we measured the hyperfine structures of three second-step transitions(0 cm -1→1 6856 cm-1→34272 cm-1),(3010 cm-1→20082 cm-1→36853 cm-1),(301 0 cm-1→20082 cm-1→37544 cm-1) in a La hollow cathode discharge lamp. The a coefficients of 34272 cm -1,36853 cm-1,and 37544 cm-1 levels have been calculated. The results given in this paper are first reported.
【关键词】 镧空心阴极灯;
高激发态超精细结构;
二级激光荧光光谱;
【Key words】 La-Kr hollow cathode discharge lamp; hyperfine structure of high-lying levels; laser fluorescence spectroscopy of second-step transition.;
【Key words】 La-Kr hollow cathode discharge lamp; hyperfine structure of high-lying levels; laser fluorescence spectroscopy of second-step transition.;
【基金】 国家自然科学基金
- 【文献出处】 光学学报 ,ACTA OPTICA SINICA , 编辑部邮箱 ,1994年05期
- 【分类号】O562.4
- 【下载频次】56