Effects of Gamma-Irradiation and Ion Implantation in Chalcogenide Glasses

Abstract

© 2016 Elsevier Inc. All rights reserved.A review of recent results on the structural modification of binary and ternary chalcogenide glasses (ChGs) after 60Co γ-irradiation with energy of 1.25MeV and accumulated doses in the range of 0.76-7.72MGy and Cu+-ion implantation with energy of 40keV and radiation dose of 1.5×1017 ion/cm2 at ion-beam current density of 1μA/cm2 is presented. New insight into the radiation-stimulated processes in the γ-irradiated ChGs is reported. In particular, it is shown that the defect structure of As2S3 and Ge15.8As21S63.2 alloys in the radiation-modified state is different, obviously, as a result of various mechanisms of radiation-induced defect formation. The synthesized Cu nanoparticles in As2S3 and Ge15.8As21S63.2 glasses are experimentally confirmed. The nonlinear optical properties studied for the ion-implanted samples demonstrate an existence of simultaneously saturated nonlinear absorption and two-photon nonlinear absorption, the latter being dominated with increasing of laser power.