Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9699596 | Optics and Lasers in Engineering | 2005 | 10 Pages |
Abstract
We present the first spectroscopic measurements using a tunable solid state Cr2+:ZnSe laser emitting at wavelengths between 2.2 μm and 2.8 μm. Photoacoustic measurements on various gases such as methane, carbon monoxide, carbon dioxide, water vapour, nitrous oxide, and ambient air were carried out. In this paper, we present measurements on methane, nitrous oxide, and ambient air. The deduced detection limits are in the low ppm or sub-ppm range, e.g., 0.2 ppm for carbon dioxide, 0.8 ppm for methane and 2.7 ppm for carbon monoxide.
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Authors
Cornelia Fischer, Evgeni Sorokin, Irina T. Sorokina, Markus W. Sigrist,