Laser frequency-modulated spectroscopy of a laser-guided plasma in sodium vapor:: Line positions for NaH (A1Σ+-X1Σ+), Na (9-13d and 11-14s), and Ar (5p-4s)

被引:6
作者
Bahns, JT [1 ]
Tsai, CC
Ji, B
Kim, JT
Zhao, G
Stwalley, WC
Bloch, JC
Field, RW
机构
[1] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA
[2] Univ Connecticut, Inst Sci Mat, Storrs, CT 06269 USA
[3] MIT, Dept Chem 6219, Cambridge, MA 02139 USA
[4] Univ Connecticut, Dept Chem, Storrs, CT 06269 USA
基金
美国国家科学基金会;
关键词
D O I
10.1006/jmsp.1997.7441
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
Laser frequency-modulated (FM) spectroscopy has been used as an axial probe of a laser-guided electric discharge in sodium-argon vapor contained in an optically accessible metal heat pipe oven. Absorption measurements in the region 23 106-23 881 cm(-1) provided accurate line positions (+/-<0.006 cm(-1)) for 141 transitions in the v' = 3-8 <--v " = 0 and v' = 5-9 <-- v " = 1 bands of NaH (A(1) Sigma(+) - X-1 Sigma(+)). In addition, 18 transitions of Na (3p to 9-13d and 11-14s) and 10 of argon (5p - 4s) were measured. Analysis of the spectrum indicates that perhaps all absorption signals are due to neutrals NaH, Na, and Ar and are observed via ''population'' modulation. (C) 1997 Academic Press.
引用
收藏
页码:222 / 229
页数:8
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