Radiation and collisional energy transfer among the A^2Πi and X^2∑^+ states of CN

Abstract

Laser-photolysis-laser-induced-fluorescence methods are used to characterize the collisional energy transfer between CN (A (2)Pi(i)) and (X (2)Sigma(+)) states and to measure radiative lifetimes of the (A (2)Pi(i)) nu' = 2-7 vibrational levels. In addition, use of the A (2)Pi(i) ? X (2)Sigma(+) system for the laser-induced-fluorescence determination of (X (2)Sigma(+)) populations is demonstrated and discussed.