Influence of the “matrix memory” effect on the photodecay of dye molecules adsorbed in porous glass

Photodecay quantum yields were determined experimentally for several laser dyes adsorbed in porous silicate glass at various dye concentrations. It was observed that the efficiency of photodecay of the adsorbed molecules depends on the method of incorporating the dyes in the porous matrices, especially on the type of solvent used when introducing the dye into the porous glass from solution, with subsequent removal of the solvent.