“…In situ diagnostics are essential to provide information on the interactions between all these species. Among these diagnostics we can mention two photon absorption laser-induced fluorescence (TALIF), , Raman scattering, Fourier transform infrared (FTIR) absorption spectroscopy, tunable diode lasers, , or quantum cascade lasers. , Most of them focus on the measurement of the dissociation fraction, i.e., CO and CO 2 (or their ratio), and their vibrational kinetics. However, atomic and molecular oxygen also play a key role in the vibrational kinetics of CO 2 plasmas and in the back-reaction mechanisms. , Atomic oxygen could also contribute to increasing the overall CO 2 dissociation. , In spite of that, few studies focus on the kinetics of O and O 2 in CO 2 plasmas. − The chemical paths are still elusive and need further clarification in order to take advantage of nonequilibrium for an efficient CO 2 conversion.…”