Theoretical results for the far-wing line shapes and corresponding absorption coefficients in the high-frequency wing of the ν3 fundamental band of self-broadened CO2 are presented for a number of temperatures between 218 and 751 K. These first-principles calculations are made assuming binary collisions within the framework of a quasi-static theory with a more accurate interaction potential than in previous calculations. The theoretical results are compared with existing laboratory data and are in good agreement for all the temperatures considered.
© 1999 Optical Society of America
Original Manuscript: May 8, 1998
Revised Manuscript: October 5, 1998
Published: January 20, 1999
Qiancheng Ma, Richard H. Tipping, Christian Boulet, and Jean-Pierre Bouanich, "Theoretical far-wing line shape and absorption for high-temperature CO2," Appl. Opt. 38, 599-604 (1999)