Measurements of the O2-broadening and shifting parameters of the HDO-16 and HDO-17 spectral lines in the  6400-7000 cm-1 region

L. N. Sinitsa; V. I. Serdyukov; Iu. L. Baranovskaya

doi:10.1117/12.2644799

7 December 2022 Measurements of the O₂-broadening and shifting parameters of the HDO-16 and HDO-17 spectral lines in the 6400-7000 cm^-1 region

L. N. Sinitsa, V. I. Serdyukov, Iu. L. Baranovskaya

Author Affiliations +

Proceedings Volume 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 123410N (2022) https://doi.org/10.1117/12.2644799
Event: 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2022, Tomsk, Russia

Abstract

The water vapor line broadening and shifting coefficients for the HDO-16 and HDO-17 lines in the 6400-7000 cm^-1 spectral region induced by oxygen pressure are measured with a spectral resolution of 0.01 cm^-1 at room temperature by a Fourier transform spectrometer. Measurements were carried out using Bruker IFS-125M Fourier spectrometer with a 60 cm multipath cell, with a path length of 1920 cm. The volume of the cell is 2.765 L. The absorption spectra of the HDO-16 and HDO-17 isotopologue were recorded at pressure of 23 mBar and oxygen pressures of 0, 171, 422 and 655 mBar. The difference in the broadening coefficients of the HDO-16 and HDO-17 absorption lines for the (101)–(000) band does not exceed 5%.

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L. N. Sinitsa, V. I. Serdyukov, and Iu. L. Baranovskaya "Measurements of the O₂-broadening and shifting parameters of the HDO-16 and HDO-17 spectral lines in the 6400-7000 cm^-1 region", Proc. SPIE 12341, 28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 123410N (7 December 2022); https://doi.org/10.1117/12.2644799

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