Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1249907 | Vibrational Spectroscopy | 2006 | 5 Pages |
Abstract
It has been proven that cavity enhanced absorption spectroscopy is a high sensitive spectral technique. The aim of our study was to apply this spectral technique to the detection of carbon monoxide with a narrow line width tunable DFB diode laser and high Q factor optical cavity. Absorption signals were extracted from a measurement recording the average of 20 highest light intensities that leak out of the cavity. The absorption spectrum of CO centered at 6354.18 cm−1 was recorded; the experiment results indicate that cavity enhanced absorption spectroscopy could produce accurate high resolution spectrum. A detection sensitivity about 5.687 × 10−7 cm−1 has been achieved in a 45 cm-long cell.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Pei Shixin, Cui Fenping, Gao Xiaoming, Zhao Weixiong, Yang Yong, Huang Teng, Huang Wei, Zhang Weijun,