Collision-induced scattering in CO2 gas

Carbon-dioxide gas rototranslational scattering has been measured at 294.5 K in the frequency range 10–1000 cm−1 at 23 amagat. The depolarization ratio of scattered intensities in the frequency range 10–1000 cm−1 is recorded. The theoretical and experimental spectra in the frequency range 10–470 cm−1 are compared. The anisotropic double differential cross section for scattered light is calculated theoretically considering first- and second-order dipole-induced dipole, first-order dipole–induced octopole, and first-order dipole–dipole–quadrupole light scattering mechanisms as well as their cross contributions.