The linear electron-phonon interaction in polymethylmethacrylate (PMMA
) doped with electron donor zinc-tetraphenylbenzophyrin (ZnTPBP) and a
cceptor p-hydroxybenzaldhyde (PHBA), or p-aminoacetophenone (PAAP) was
investigated by photon-gated spectral hole-burning (PHB). The aim is
to study the factors that affect the linear electron-phonon coupling a
nd the thermal stability of spectral holes in the organic film samples
.