Diode laser measurements of N₂-broadened line widths in the ν₁ band of OCS

Abstract

A tunable diode laser spectrometer has been used to perform measurements of pressure-broadening coefficients for 20 vibration–rotation lines in the ν 1 band of 16 O 12 C 32 S perturbed by N 2 . Calculations of these broadening coefficients have been carried out on the basis of the Anderson–Tsao–Curnutte theory and by considering an improved semiclassical impact theory.