Photon echoes in an impurity polymer: New data on the low-temperature processes of phase relaxation and their relationship to the broadening of zero-phonon lines of single molecules
New experimental data on the times of phase relaxation in the amorphous polyisobutylene doped with chromophore molecules of tetra-tert-butylterylene are obtained by the incoherent photon echo method at temperatures of 5, 7, 10, and 15 K. A comparative analysis of the results is performed and data on the widths of zero-phonon spectral lines of single molecules in this impurity system are presented.