Evaluating the magnitude of nonuniform expansion of the fluorescence spectrum of rhodamine 6G in glycerin

The formation of an imbalanced distribution of fluorescing centers at frequencies of a 0-0 transition in a dipole solvent-dye system and the subsequent transformation of the imbalanced distribution into balanced over a time of $\tau_R$ is examined. The magnitudes of nonuniform expansion of the fluorescence spectrum and the time $\tau_R$ for a solution or rhodamine 6G in glycerin are estimated on the basis of the measured relations of the time for fading of the fluorescence of this solution.