Time-resolved impulse photoacoustic measurements by step-scan FT-IR spectrometry

被引：4
|
作者：
Budevska, BO [1 ]
Manning, CJ [1 ]
机构：
[1] MANNING APPL TECHNOL,MOSCOW,ID 83843
来源：
APPLIED SPECTROSCOPY | 1996年 / 50卷 / 07期
关键词：
time-resolved; photoacoustic; step-scan FT-IR; depth-profiling;
D O I：
10.1366/0003702963905457
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
An impulse/response approach for measuring photoacoustic spectra is described, Instead of the usual modulation from either a chopper or an interferometric phase modulation, a radiation pulse is used to generate the photoacoustic (PA) signal at each step of a step-scan FT-IR spectrometer, The signal from the PA cell is recorded as a time-resolved sequence, The time-dependent photoacoustic signal reveals depth-profiling information for solid samples. Examples of time-resolved impulse photoacoustic spectra (TRIPAS) of gas and solid samples are presented.
引用
收藏
页码：939 / 947
页数：9
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