Table 1 Main Physical and optical characteristics of the studied glasses.
From: IR GRIN lenses prepared by ionic exchange in chalcohalide glasses
72 GeSe2-28 Ga2Se3 | (72 GeSe2-28 Ga2Se3)75 – (NaI)25 | |
|---|---|---|
Tg (± 2 °C) | 372 | 310 |
Tx (± 2 °C) | 430 | 428 |
Tx-Tg | 58 | 118 |
n @ 1311 µm | 2,415 | 2,248 |
n @ 1551 µm | 2,405 | 2,241 |
TEC (± 0.2.10–6 K-1) | 11,7 | 16,7 |
Density (± 0.02 g.cm-3) | 4,43 | 4,20 |
Hv (± 8) | 192 | 143 |
E (± 2 GPa) | 22 | 19 |
