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Journal of Quantitative Spectroscopy and Radiative Transfer
Article . 2018 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Study of Н2О line broadening and shifting by N2 pressure in the 16,600–17,060 cm−1 region using FT-spectrometer with LED source

Authors: Serdyukov, Viktor I.; Sinitsa, Leonid N.; Vasilchenko, Semen S.; Lavrentieva, Nina N.; Dudaryonok, Anna S.; Shcherbakov, Anatoly P.;

Study of Н2О line broadening and shifting by N2 pressure in the 16,600–17,060 cm−1 region using FT-spectrometer with LED source

Abstract

Abstract N2 pressure broadening and shifting coefficients are presented for about 300 strongest water vapor lines in the 16,600–17,060 cm−1 spectral region. The spectra have been recorded with a spectral resolution of 0.05 cm−1 at room temperature by a Fourier transform spectrometer using a high luminance LED light source. A high signal-to-noise ratio (S/N ≈ 10 000) permits the analyses of the lines with intensities from 1.54 × 10−23 to 2.0 × 10−26 cm/molecule. The multi-spectrum fitting procedure was used to fit line parameters of the ν1+ 4ν2+ 2ν3, 3ν1+ 2ν2+ ν3, 4ν1+ ν3, 4ν1+ 2ν2, 5ν1 bands for the temperature T = 297 K. Line broadening and shifting calculations are performed using a semi-empirical method, which is based on the impact theory of broadening, and includes the correction factors whose parameters were determined by fitting the broadening coefficients of 12 lines to the experimental data. The method was further developed for the estimate of line profiles using the an harmonic wave functions.

Country
Russian Federation
Keywords

коэффициенты уширения, спектры поглощения молекулы воды, молекула воды, коэффициенты сдвига, Фурье-спектрометры, линии поглощения молекулы воды

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    popularity
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
11
Top 10%
Average
Top 10%
Green