Measurements of temperature-dependent argon-broadened half-widths of H2O transitions in the 7117 cm-1 region.
Abstract
A distributed-feedback InGaAsP diode laser has been used to perform spectrally resolved measurements of H2O transitions near 7117 cm-1. Line shape analyses of the recorded absorption spectra yielded the temperature dependent Ar-broadened half-widths. Room-temperature (296 K) half-widths for four transitions were determined with an uncertainty of +7%/-5%. Temperature exponents for three of these transitions were determined over the range of 296-473 K with an uncertainty of ±7%.
- Publication:
-
Journal of Quantitative Spectroscopy and Radiative Transfer
- Pub Date:
- March 2000
- DOI:
- 10.1016/S0022-4073(99)00160-0
- Bibcode:
- 2000JQSRT..64..651N
- Keywords:
-
- Water Vapor: Infrared Spectra;
- Water Vapor: Laboratory Spectra;
- Water Vapor: Absorption Spectra;
- Water Vapor: Line Profiles;
- Water Vapor: Line Broadening