Abstract

The broadening of CO₂ rotation–vibration lines has been investigated in the 200–300K temperature range. From an analysis of four lines (|m| = 8, 15, 20, 30), it is found that the temperature exponent is nearly independent of the rotational quantum number within the limits of experimental error, for both self- and oxygen broadening. Average values n₁ = 0.86 for CO₂–CO₂ and n₂ = 0.94 for CO₂–O₂ have been obtained. Comparison is made with the results of the theoretical calculation based on the Robert-Bonamy model.

© 1987 Optical Society of America

Fourier transform measurement of self-, N₂-, and O₂-broadening of N₂O lines: temperature dependence of linewidths

Nelly Lacome, Armand Levy, and Guy Guelachvili
Appl. Opt. 23(3) 425-435 (1984)

Pressure and temperature dependence of the self-broadened linewidths of the carbon dioxide laser bands

Larry A. Gross and Peter R. Griffiths
Appl. Opt. 26(11) 2250-2255 (1987)

Accurate calculated tabulations of IR and Raman CO₂ line broadening by CO₂, H₂O, N₂, O₂ in the 300–2400-K temperature range

L. Rosenmann, J. M. Hartmann, M. Y. Perrin, and J. Taine
Appl. Opt. 27(18) 3902-3907 (1988)

Air broadened linewidths, intensities, and spectral line shapes for CO₂ at 4.3 μm in the region of the AMTS instrument

C. Cousin, R. Le Doucen, J. P. Houdeau, C. Boulet, and A. Henry
Appl. Opt. 25(14) 2434-2439 (1986)

Temperature dependence of the absorption in the region beyond the 4.3-μm band head of CO₂. 2: N₂ and O₂ broadening

C. Cousin, R. Le Doucen, C. Boulet, and A. Henry
Appl. Opt. 24(22) 3899-3907 (1985)