MULTINOZZLE SUPERSONIC EXPANSION FOR FOURIER-TRANSFORM ABSORPTION-SPECTROSCOPY

被引：19
|
作者：
GEORGES, R [1 ]
DURRY, G [1 ]
BACH, M [1 ]
PETRISSE, R [1 ]
JOST, R [1 ]
HERMAN, M [1 ]
机构：
[1] MAX PLANCK INST SOLID STATE RES,CNRS,CHAMPS MAGNET INTENSES LAB,F-30842 GRENOBLE 9,FRANCE
来源：
CHEMICAL PHYSICS LETTERS | 1995年 / 246卷 / 06期
关键词：
D O I：
10.1016/0009-2614(95)01161-4
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：
A new supersonic expansion made of several, up to 31 aligned nozzles, on top of a set of powerful Roots blowers has been built. Adequate optics allowed the recording of infrared absorption spectra in a cell with a Fourier transform interferometer, at high spectral resolution. The system was tested with N2O, between 2000 and 4800 cm(-1). The nu(1) + 2 nu(2) + nu(3) combination band, estimated to be some 10000 times weaker than the nu(3) fundamental, could be observed among all the other expected bands, thus setting a limit for the sensitivity of the system. The formation of large N2O clusters was observed.
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页码：601 / 606
页数：6
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