D₂的H1Σ⁺<INF POS="STACK">g（v = 0和1）及EF1Σ⁺<INF POS="STACK">g（v = 28和32）态：项值与荧光寿命

The H1Sigma+<INF POS="STACK">g (v = 0 and 1) and EF1Sigma+<INF POS="STACK">g (v = 28 and 32) States of D2: Term Values and Fluorescence Lifetimes.

作者信息

Suzuki H, Nakata M, Ogi Y, Tsukiyama K

机构信息

Faculty of Science, Science University of Tokyo, Kagurazaka, Shinjuku, Tokyo, 162-8601, Japan

出版信息

J Mol Spectrosc. 1998 Sep;191(1):142-7. doi: 10.1006/jmsp.1998.7622.

DOI:10.1006/jmsp.1998.7622

PMID:9724590

Abstract

The extreme ultraviolet-visible double resonant excitation method was applied to the gerade Rydberg states of D2 molecules. Tunable coherent extreme ultraviolet radiation near 103 nm prepared D2 in the B1Sigma+u (v = 7, J) state. Visible laser light subsequently brought them to the H1Sigma+g (v = 0 and 1), EF1Sigma+g (v = 28 and 32), and GK1Sigma+g (v = 2 and 5) states. Our term values for the GK1Sigma+g state were in complete agreement with previous values, while deviations beyond the experimental error were found for the H1Sigma+g (v = 1) and EF1Sigma+g (v = 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. Copyright 1998 Academic Press.

摘要

极紫外-可见光双共振激发方法被应用于D2分子的 gerade 里德堡态。波长接近103 nm的可调谐相干极紫外辐射将D2制备到B1Σ+u (v = 7, J)态。随后，可见激光将它们激发到H1Σ+g (v = 0和1)、EF1Σ+g (v = 28和32)以及GK1Σ+g (v = 2和5)态。我们得到的GK1Σ+g态的能级值与先前的值完全一致，而对于H1Σ+g (v = 1)和EF1Σ+g (v = 28和32)态，发现了超出实验误差范围的偏差。首次在无碰撞环境下测量的荧光寿命与从头算计算结果合理相符。版权所有1998年，学术出版社。