Abstract :
A system of kinetic equations that enable to calculate time-dependent fluorescence spectra of rare gas excimers has been composed and solved. To this end, correctly normalized Franck–Condon factors corresponding to all possible bound–bound and bound–free transitions for Xe excimers in their lowest dipole allowed electronic state have been calculated. Thereafter, the Franck–Condon factors have been summed using their calculated relative statistical weights. As a result, a uniform interpretation to the well-known emission continua has been given, including weak oscillatory structures related to the excimers’ left turning point regions. Good agreement between theory and experiment has been demonstrated. A similar approach has been used to calculate time-resolved luminescence spectra for self-trapped excitons in Xe crystal.
