Multifrequency laser diagnostics of vibrational nonequilibrium gas media containing CO2 molecules

The technique for multifrequency diagnostics of a vibrational nonequilibrium gas mixture that contains CO 2 molecules is proposed. The technique uses data on unsaturated gains at lines of the 00 0 1–[10 0 0, 02 0 0] I, II and 00 0 2–[10 0 1, 02 0 1] I, II transitions obtained with the help of a tuna...

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Bibliographic Details
Published in:Atmospheric and oceanic optics 2016, Vol.29 (1), p.12-17
Main Authors: Arshinov, K. I., Krapivnaya, O. N., Nevdakh, V. V.
Format: Article
Language:English
Subjects:
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Spectroscopy of Ambient Medium
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Summary:The technique for multifrequency diagnostics of a vibrational nonequilibrium gas mixture that contains CO 2 molecules is proposed. The technique uses data on unsaturated gains at lines of the 00 0 1–[10 0 0, 02 0 0] I, II and 00 0 2–[10 0 1, 02 0 1] I, II transitions obtained with the help of a tunable CO 2 laser. Results of the study of the influence of accuracy of gain measurements and the number of sensing lines on errors in determining populations of vibrational levels and gas mixture translational temperatures are presented.
ISSN:1024-8560
2070-0393
DOI:10.1134/S1024856016010048