TheH1Σ+g(v= 0 and 1) andEF1Σ+g(v= 28 and 32) States of D2: Term Values and Fluorescence Lifetimes

✍ Scribed by H. Suzuki; M. Nakata; Y. Ogi; K. Tsukiyama

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 146 KB
• Volume: 191
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1998.7622

✦ Synopsis

The extreme ultraviolet-visible double resonant excitation method was applied to the gerade Rydberg states of D 2 molecules. Tunable coherent extreme ultraviolet radiation near 103 nm prepared D 2 in the B 1 ⌺ u ϩ (v ϭ 7, J) state. Visible laser light subsequently brought them to the H 1 ⌺ g ϩ (v ϭ 0 and 1), EF 1 ⌺ g ϩ (v ϭ 28 and 32), and GK 1 ⌺ g ϩ (v ϭ 2 and 5) states. Our term values for the GK 1 ⌺ g ϩ state were in complete agreement with previous values, while deviations beyond the experimental error were found for the H 1 ⌺ g ϩ (v ϭ 1) and EF 1 ⌺ g ϩ (v ϭ 28 and 32) states. The fluorescence lifetimes, measured under a collision-free environment for the first time, were in reasonable agreement with ab initio calculations.