Glass formation and optical properties of Ge–Te–Ga–CuI far-IR transmitting chalcogenide glasses.

Highlights: [•] The glass-forming region of Te-based glasses was enlarged after Ga and CuI adding. [•] With the help of Ga and CuI, all these glasses have relatively high Tg values (>175°C). [•] Studied glass samples all have wide IR transmission window from 1.8 to 20μm. [ABSTRACT FROM AUTHOR]