Abstract

Infrared line positions of many chlorofluorocarbons are difficult to catalog because the lines are densely packed. Lines belonging to hot bands and isotopic bands further complicate the problem. It is desirable to measure the absorption coefficient itself over the range of wave numbers, temperatures, and pressures that are appropriate to remote sensing experiments in the atmosphere. Because the ultimate goal in any lineby-line scheme is to compute the absorption coefficient, kv, a computation that can be flawed by our lack of knowledge of all the spectroscopic parameters governing line absorption and of their temperature and pressure dependence, why not measure the absorption coefficient directly in the laboratory?

© 1990 Optical Society of America