Two mechanisms for spectral diffusion in optical spectra of impurity centers
Osad'ko I. S.
A study has been made of how the interaction of an impurity center with tunneling excitations of the solvent affects the time evolution of the spectral lines of pentacene molecules in a para-terphenyl crystal. Interactions diagonal and nondiagonal in terms of electron indices are considered; they are manifested in different ways in the spectral diffusion.© 1995 American Institute of Physics.