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
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
相关论文
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