Ilcheva V.Boev V.Roussev D.Petkov P.Petkova T.Sharlandjiev P.Nasarova D.2024-07-102024-07-102024-07-102024-07-102008-05-011742-65961742-658810.1088/1742-6596/113/1/012018SCOPUS_ID:44649089413https://rlib.uctm.edu/handle/123456789/138Thin films from the As-Se-Ag system have been prepared on glass and silicon substrates by thermal vacuum evaporation from previously fabricated bulk glassy samples. The amorphous state of the samples has been proved by X-ray diffraction. Some optical properties of the amorphous As-Se-Ag thin films have been studied in relation to the Ag concentration in the sample. In order to investigate the photoinduced changes due to irradiation by with He-Ne laser light, transmission spectra of the thin films have been measured before and after irradiation. The optical characteristics as a function of the composition have been studied. © 2008 IOP Publishing Ltd.enArticle