Parameters of HD16O absorption lines in 5100–5400 cm-1 spectral region broadened by carbon dioxide pressure

Tatiana M. Petrova; Alexandr M. Solodov; Alexandr A. Solodov; Vladimir M. Deichuli

doi:10.1117/12.2690371

17 October 2023 Parameters of HD¹⁶O absorption lines in 5100–5400 cm^-1 spectral region broadened by carbon dioxide pressure

Tatiana M. Petrova, Alexandr M. Solodov, Alexandr A. Solodov, Vladimir M. Deichuli

Author Affiliations +

Proceedings Volume 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 127800W (2023) https://doi.org/10.1117/12.2690371
Event: XXIX International Symposium "Atmospheric and Ocean Optics, Atmospheric Physics", 2023, Moscow, Russian Federation

Abstract

In the region of 5100 – 5400 cm^-1, the absorption lines of the HD¹⁶O molecule broadened by the CO₂ pressure were registered on the Fourier spectrometer IFS 125 HR. The parameters of HDO absorption lines belonging to two vibration-rotational bands, ν₂+ν₃ and ν₁+ν₂, are determined. The measurements were carried out at room temperature with a spectral resolution of 0.01 cm_–1. The absorption lines were approximated using a modified Voigt profile, which takes into account the dependence of broadening on the velocities of colliding molecules.

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Tatiana M. Petrova, Alexandr M. Solodov, Alexandr A. Solodov, and Vladimir M. Deichuli "Parameters of HD¹⁶O absorption lines in 5100–5400 cm^-1 spectral region broadened by carbon dioxide pressure", Proc. SPIE 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 127800W (17 October 2023); https://doi.org/10.1117/12.2690371

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