Influence of solvation on the lasing characteristics of dye solutions

The lasing characteristics of alcohol solutions of rhodamine dyes (R6G, RB, R110), coumarin 47, and mixtures of these with and without inhomogeneous broadening of their electronic spectra were investigated using flashlamp and laser excitation. It was found that changes in the structure of the solvate shells of the dye molecules influenced the populations of their triplet states and the efficiency of electronic excitation transfer in two-component systems.