Resonance absorption of CO2 laser radiation in carbon dioxide gas

The results are given of measurements of the transmission of CO₂ laser radiation (10.6 μ) by a mixture of carbon dioxide and nitrogen at temperatures of θ = 293 and 331°K. It is shown that the half-width of the Р20 line is proportional to θ^–1.5. These measurements and an analysis of the published data are used to demonstrate that the values of the resonance absorption coefficient obtained by different authors are in agreement.