Mass selective infrared spectroscopy using a free electron laser

被引：43
|
作者：
Putter, M
von Helden, G
Meijer, G
机构：
[1] Dept. of Molecular and Laser Physics, University of Nijmegen, Toernooiveld
来源：
CHEMICAL PHYSICS LETTERS | 1996年 / 258卷 / 1-2期
关键词：
D O I：
10.1016/0009-2614(96)00656-2
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：
Mass selective gas-phase infrared spectroscopy using IR/VUV double resonance ionization is demonstrated. A free electron laser (FEL), tunable over the 100-2000 cm(-1) range, is used as the IR excitation source while VUV light, produced by a F-2 laser, is used for subsequent ionization. Spectra are obtained by monitoring the ion of interest as a function of IR wavelength. It is shown that these spectra can give the same information as direct IR absorption spectra. The sensitivity of the method is many orders of magnitude higher than that of conventional IR absorption spectroscopy. First results on para amino benzoic acid (PABA) are presented.
引用
收藏
页码：118 / 122
页数：5
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