Measurements of the isotopic composition of water vapor using a DFG-based spectrometer at

We report on absorption measurements of the isotopic composition of water in a demineralized sample by means of wavelength modulation spectroscopy of H2O lines in the spectral region around . The mid-IR radiation was obtained by difference-frequency mixing of the radiation of an extended cavity diod...

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Bibliographic Details
Published in:Optics and lasers in engineering 2006-07, Vol.44 (7), p.711-721
Main Authors: Rusciano, G., Pignatiello, F., Sasso, A.
Format: Article
Language:English
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Summary:We report on absorption measurements of the isotopic composition of water in a demineralized sample by means of wavelength modulation spectroscopy of H2O lines in the spectral region around . The mid-IR radiation was obtained by difference-frequency mixing of the radiation of an extended cavity diode laser () and that of a diode-pumped monolithic Nd-YAG laser. Preliminary tests indicate the possibility of obtaining a precision for the 18O/16O, 17O/16O and 2H/16O isotope ratio measurements of the order of 1per mil.
ISSN:0143-8166
DOI:10.1016/j.optlaseng.2005.04.016