A STUDY OF SPONTANEOUS EMISSION FROM CO2-N2-HE-H2 LASER DISCHARGES C3PIU-B3PIG EMISSION BANDS OF N2

Results of spectroscopic investigations of the spontaneous emission of CO2 lasers are presented. The band head emission in the Second Positive System (C3πu - B3πg) of N2is studied as a function of discharge current and laser output power. The observed changes of the band head intensities are described in terms of the vibrational energy distribution in the C3πu electronic state of N2 A simple model is developed by which the influence of the laser process can be understood. The excitation properties of the C31ru state are in reasonable qualitative agreement with the predictions of this model. Copyright © 1969 by The Institute of Electrical and Electronics Engineers, Inc.