ON THE INFLUENCE OF AG-PHOTODOPING ON THE OPTICAL-PROPERTIES OF AS-S GLASS-FILMS

Films of As-S glasses prepared by thermal evaporation were photodoped with Ag. The kinetics of Ag-photodissolution into As-S glass films hav e been investigated by monitoring the optical transmittance and electr ical resistance of the Ag layer, simultaneously, during the process. T he analysis proposed by Swanepoel, enabling the determination of the t hickness variation, average thickness, refractive index and absorption coefficient of a wedge-shaped film, have succesfully been applied. Th e refractive-index behavior of the Ag-photodoped chalcogenide glasses under study is analyzed within the oscillator framework proposed by We mple and DiDomenico.