| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 735783 | Optics and Lasers in Engineering | 2006 | 11 Pages |
Abstract
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 2.8μm. The mid-IR radiation was obtained by difference-frequency mixing of the radiation of an extended cavity diode laser (λ=780nm) 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 1 per mil.
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Authors
G. Rusciano, F. Pignatiello, A. Sasso,