INFRARED-SPECTROSCOPY OF THE PRODUCTS OF A CORONA-EXCITED SUPERSONIC EXPANSION

被引：23

作者：

COMER, KR

FOSTER, SC

机构：

[1] Department of Chemistry, Florida State University, Tallahassee

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 202卷 / 3-4期

关键词：

D O I：

10.1016/0009-2614(93)85268-S

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 novel corona-excited supersonic jet slit discharge is described, and its use as a source of rotationally cold free radicals for infrared direct absorption spectroscopy is discussed. The system was tested by detecting the rovibrational spectrum of CS and by observing the nu2 band of NH2X B-2(1). Two different phase sensitive detection schemes were used. Although conventional frequency modulation of the infrared laser was successfully employed, a new population modulation scheme was more effective. Under the conditions described, rotational temperatures of the detected fragments were almost-equal-to 40 K.

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页码：216 / 220

页数：5

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