Correlations between Doppler and collision broadening in neutral-atom line broadening

Abstract

The measured shape of the collision-broadened resonance lines of the light element lithium are found to deviate significantly from the expected Voigt shape when broadened by heavy gases. The observed shape is in excellent agreement with that recently computed by Ward, Cooper and Smith (1974), who have taken full account of the distortion of the profile expected from the correlations between the Doppler and collision-broadening process.