Vibrational to electronic energy transfer from CO to C 2 molecules

Abstract

The paper discusses the experimental results pointing to the efficient channel of the CO vibrational to the C 2 electronic energy transfer. The radiation spectra of the d 3П g, e 3П g, C 1П g electronic states of C 2 molecule are investigated and the relation of their kinetics to a vibrational excitation of CO molecules in the He–CO–O 2 plasma is discussed. The changes of CO vibrational energy distribution (VED) were imposed by an application of a laser resonator to the discharge tube under investigation. It was found that the modulation of laser radiation (and VED) led to a similar changes of the spontaneous radiation from d 3П g, e 3П g and C 1П g states of C 2 molecules.