Golovchak R. Optical-spectroscopic peculiarities of radiation-induced effects in mixed arsenic-germanium sulfide glasses

3, Optical radiation-induced effects (RIE) in chalcogenide glasses (ChG). To investigate the optical-spectroscopic peculiarities of RIE induced by g-irradiation through the wide range of As-Ge-S ChG chemical compositions, to determine factors, which can affect the magnitude of the observed changes and to develop the microstruc- tural mechanism for optical RIE. The optical and IR Fourier spec- troscopic methods were used. Optical RIE exhibit different compo- sitional dependence for the samples of As2S3-GeS2 and As2S3- Ge2S3 cuts. They are time-unstable at room temperatures and de- pend on the temperature of the samples during irradiation proce- dure. The microstructural mechanism of the observed RIE is based on the induced switchings of covalent bonds and simultaneous coordination defects formation processes. Practical application - IR optics, optoelectronics.