EMISSION-SPECTRA OF CALCIUM DIMER - THE A(1)SIGMA(+)(U)-X(1)SIGMA(+)(G) SYSTEM

被引：11

作者：

GONDAL, MA

KHAN, MA

RAIS, MH

机构：

[1] Laser Research Section, Energy Division, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 243卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(95)00812-I

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The A(1) Sigma(u)(+)-X(1) Sigma(g)(+) spectral system of Ca-2 has been studied in two independent experiments. The collision-induced fluorescence due to this band was investigated following the resonant excitation of the 4s4p(3)P(1) metastable state of calcium using a Nd:YAG laser pumped dye laser. In another experiment, a low current glow discharge in calcium vapor was used. We have assigned 86 spectral lines to this band system for vibrational quantum numbers (upsilon' = 10-13 and upsilon '' = 0) by applying a Dunham type analysis. The A(1) Sigma(u)(+) state dissociation energy D-e' is estimated to be approximate to 8693.6 +/- 1 cm(-1). The processes involved in the collisional excitation of the upper molecular state are discussed.

引用

页码：94 / 101

页数：8

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