Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.291, 51-56, 1996
Contributions of the Different Line Broadening Mechanisms in Photon-Echoes and Single-Molecule Spectra in Amorphous Solids
Experimental data on Photon Echoes (PE) in the system terrylene/poly(isobutylene) in the temperature range 0.4-8K are presented and compared with Single Molecule Spectroscopy (SMS) results. From this comparison we conclude that the linewidth distribution in SMS is caused mainly by a large T-2-dispersion (but not slow spectral diffusion). The temperature line broadening is discussed.