High resolution diode laser spectroscopy of H2O spectra broadened by nitrogen and noble gases

Venedikt A. Kapitanov; Konstantin Yu. Osipov; Alexander E. Protasevich; Yakov Ya. Ponurovskiy

doi:10.1117/12.2075279

25 November 2014 High resolution diode laser spectroscopy of H₂O spectra broadened by nitrogen and noble gases

Venedikt A. Kapitanov, Konstantin Yu. Osipov, Alexander E. Protasevich, Yakov Ya. Ponurovskiy

Proceedings Volume 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 929202 (2014) https://doi.org/10.1117/12.2075279
Event: 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2014, Novosibirsk, Russian Federation

Abstract

The absorption spectra of pure H2O with mixtures of broadening gases N2, Ar, Xe, He, Ar and air have been measured in 1.39 mμ spectral region by high resolution spectrometer based on diode laser (DFB NEL, Japan). For the processing of pure water spectra and it’s mixtures with a different broadening gases in a wide pressure range we used a multispectrum fitting procedure developed at IAO. The program is based on a relatively simple Rautian-Sobel’man line profile and linear pressure dependence of the line profile parameters. H2O measured spectra bulk processing results in the retrieving of such line parameters: zero-pressure line center positions, intensities, self-broadening and self-shift coefficients of pure water, broadening and shift coefficients for other gases which are describes the experiment with the minimum residuals in a wide pressure range.

Citation Download Citation

Venedikt A. Kapitanov, Konstantin Yu. Osipov, Alexander E. Protasevich, and Yakov Ya. Ponurovskiy "High resolution diode laser spectroscopy of H₂O spectra broadened by nitrogen and noble gases", Proc. SPIE 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 929202 (25 November 2014); https://doi.org/10.1117/12.2075279

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