Nitrogen-Broadening Parameters for Atmospheric Spectra Modelling of the ν₃ Band of SF₆

Abstract

The infrared absorption of the ν3 band region of SF6, at temperatures spanning the 130 to 297 K range, has been reexamined using improved instrumentation with one goal: to estimate the broadening of parameters by nitrogen gas. These parameters are compared to previous literature predictions and an extended set of IR cross-sections is proposed and compared to other existing datasets.

Keywords

• SF₆
• IR absorption
• nitrogen-broadening
• cross-sections