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

“…Technological aspects of the preparation of alloys are described in [2]. Here, it should be noted that glasses of composition Si 15 Ge(Ga) 5 Te 80 , with a high glass-forming ability, were synthesized using the cationic replacement of silicon by germanium (or by gallium).…”

“…It was shown that optical transmittance of the Si 20 Te 80 alloy at 10.6 lm is noticeably lower than that of single-crystal Ge, which is one of the most efficient and widely used acousto-optic materials for IR applications. The discovery [2] of high values of the acousto-optical figure of merit, M 2 , in the binary Si-Te system stimulated similar studies of ternary systems of glasses, with cationic substitution of silicon with germanium (or with gallium) or anionic replacement of tellurium with selenium.…”