Broadening and line mixing in the 20⁰0←01 ¹0, 11 ¹1←00⁰⁰0 and 122²0←01 ¹0 Q branches of carbon dioxide: Experimental results and energy-corrected sudden modeling

The transitions in the 12 ²0←01 ¹0 band of carbon dioxide at room temperature and pressure up to 19 atm were measured. The study was carried out by using both a difference frequency spectrometer and a fourier transform spectrometer. A variety standard spectral profiles, all with an asymmetric component to account for weak line mixing were used to analyze the low-pressure spectra. It was found that, from this band it is able to retrieve experimental line strength and the broadening and weak mixing parameters.