Comparison of optical properties and impurities content of Ge-Sb-S-I glasses prepared by different methods

Bulk samples of Ge-Sb-S-I chalcoiodide glasses of different compositions were prepared by plasma enhanced chemical vapor deposition (PECVD). GeI4, SbI3 and elemental sulfur were the initial substances. Impurities content, optical, and structural properties of the samples were studied. The data obtained were analyzed and compared with the properties of the bulk samples prepared by interaction of the same initial substances into reactive-distillation column at 650 degrees C. The dependence of optical properties of the glasses on preparation technique was discussed. (C) 2016 Optical Society of America