Quantitative wavelength-modulation spectroscopy without certified gas mixtures

被引：32

作者：

Henningsen, J ^{[1
]}

Simonsen, H ^{[1
]}

机构：

[1] Danish Inst Fundamental Metrol, DK-2800 Lyngby, Denmark

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2000年 / 70卷 / 04期

关键词：

D O I：

10.1007/s003400050871

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the quantification of signal strength in wavelength-modulation spectroscopy, and present algorithms which allow for the quantitative analysis of second-harmonic spectra for arbitrary combinations of line width and modulation depth. The algorithms are validated through measurements on CO lines in the 0 --> 3 overtone band. They can be used for measuring the line strength of lines that are too weak to allow direct absorbance measurements, and for quantifying the response from monitors applying wavelength-modulation under conditions where calibration with certified gases is not feasible.

引用

页码：627 / 633

页数：7

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