Observation of the Hyperfine Structure of the 23Ⅱ1g State in Na2

• 来源期刊: 中国物理快报
• 学科: 物理学
• 年，卷（期）: 2001,（10）
• 所属期刊栏目: ATOMIC AND MOLECULAR PHYSICS
• 页码范围: 1341-1343
• 页数: 3页
• 分类号: O4
• 语种: 英文

摘要

We report the results of the hyperfine structure (HFS) of the 231g state in Na2. The relative ultraviolet and visible fluorescence spectra of molecular sodium were measured by means of a Doppler-free two-photon spectroscopy technique. The HFS of the 23Hg(v ＝ 78, J ＝ 37,Ω ＝ 1) level was first observed and its HFS constant was measured to be C = -4.92 ± 0.26 MHz. The intermediate enhancing and upper energy levels were labelled by the experimental and theoretical methods.