Influence of Halides on the Luminescence of Silver Molecular Clusters in Photo-thermo-refractive Glasses

The luminescence spectra of silver molecular clusters in photo-thermo-refractive glasses are investigated in detail before and after the UV irradiation and also after the heat treatment of the samples. Also investigated are (I) the influence of halogens such as Cl and Br in glass matrix composition on the luminescence of silver molecular clusters in photo-thermo-refractive glasses and (II) the effect of temperature on the luminescence spectra and the integrated intensity of luminescence of photo-thermo-refractive glasses.