Far infrared laser system for the measurement of collision-induced absorption spectra

Abstract

A system for the measurement of collision-induced absorption using a CO2 optically pumped FIR laser is described. The report emphasizes the laser stabilization systems that have been developed, the design of the absorption cell, and the detection methods employed to obtain the required data. Also included are some typical results at 15.1 cm−1 for nitrogen, ethylene, carbon dioxide, and ethane gases.