Collisional Broadening of CO{sub 2} 10{sup 0}0–00{sup 0}1 Transition Lines by O{sub 2} and N{sub 2} in the Range 300–700 K

Unsaturated absorption coefficients are measured using a tunable CO{sub 2} laser in pure CO{sub 2} and CO{sub 2}:O{sub 2} = 1:2 and CO{sub 2}:N{sub 2} = 1:2 gas mixtures at the central frequencies of the R(8), R(22), P(8), P(22), and P(36) CO{sub 2} 10{sup 0}0–00{sup 0}1 transition lines under a pre...

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Bibliographic Details
Published in:Journal of applied spectroscopy 2017-11, Vol.84 (5)
Main Authors: Arshinov, K. I., Krapivnaya, O. N., Nevdakh, V. V., Shut, V. N.
Format: Article
Language:English
Subjects:
ABSORPTION
ATOMIC AND MOLECULAR PHYSICS
CARBON DIOXIDE
LASERS
MIXTURES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0400-1000 K
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Summary:Unsaturated absorption coefficients are measured using a tunable CO{sub 2} laser in pure CO{sub 2} and CO{sub 2}:O{sub 2} = 1:2 and CO{sub 2}:N{sub 2} = 1:2 gas mixtures at the central frequencies of the R(8), R(22), P(8), P(22), and P(36) CO{sub 2} 10{sup 0}0–00{sup 0}1 transition lines under a pressure of 100 Torr in the temperature range 300–700 K. The collisional broadening coefficients of the CO{sub 2} spectral lines by O{sub 2} and N{sub 2} are obtained. The temperature dependences of these coefficients are approximated by power functions with two different exponents.
ISSN:0021-9037
1573-8647
DOI:10.1007/S10812-017-0538-8