Synthesis and physical properties of Si(Ge)–Se–Te glasses

Ternary telluride glasses have been synthesized. Acoustic, acousto-optical properties, and the dispersion of optical transmittance of these alloys have been studied in a wide range of temperatures and frequencies. Comparative analysis of the results obtained is performed. Possible mechanisms of the phenomena observed are discussed. A new alloy is found, which can be used for fabrication of high efficiency acousto-optic devices with a wide range of applications in the mid-IR spectral range.