Optir-1™ & Optir-3™ Properties
| Optir-1™ (Equivalent to AMTIR 1 and IG2) |
| Composition |
Ge33As12Se55 |
| Density |
4.41 g/cm3 |
| Thermal expansion |
12.1x 106/K |
| Specific Heat |
0.33 J/gk |
| Thermal conductivity |
0.24 W/mK |
| Transition temperature |
368°C |
| Knoop hardness |
1.41 GPa |
| Modulus of rupture |
19 MPa |
| Young's modulus |
21.5 GPa |
| Shear modulus |
8.9 GPa |
| Dispersion |
202 (4 µm)
108 (10.6 µm)
|
| Thermo-optic coefficient |
71x106/K(3,4 µm)
60x106/K(10,6 µm)
|
|
| Optir-3™ (Equivalent to AMTIR 3 and IG5) |
| Composition |
Ge28Sb12Se |
| Density |
4.66 g/cm3 |
| Thermal expansion |
14.0x 106/K |
| Specific Heat |
0.33 J/gk |
| Thermal conductivity |
0.25 W/mK |
| Transition temperature |
385°C |
| Knoop hardness |
1.13 GPa |
| Modulus of rupture |
18 MPa |
| Young's modulus |
22.1 GPa |
| Shear modulus |
8.5 GPa |
| Dispersion |
180 (4 µm)
102 (10.6 µm)
|
| Thermo-optic coefficient dn/dT |
76x106/K(3,4 µm)
91x106/K(10,6 µm)
|
|
| Optir-1™ |
| Weight |
Transmission
%
|
Indices of
Refraction
|
| 3.0 |
68 |
2,5173 |
| 4.0 |
68 |
2,5129 |
| 5.0 |
68 |
2,5098 |
| 6.0 |
68 |
2,5072 |
| 7.0 |
68 |
2,5048 |
| 8.0 |
68 |
2,5024 |
| 9.0 |
68 |
2,4996 |
| 10.0 |
68 |
2,4967 |
| 11.0 |
68 |
2,4930 |
12.0
|
56 |
2,4882 |
|
| Optir-3™ |
| Weight |
Transmission
% |
Indices of
Refraction |
| 3.0 |
66 |
2,6277 |
| 4.0 |
66 |
2,6226 |
| 5.0 |
66 |
2,6187 |
| 6.0 |
66 |
2,6158 |
| 7.0 |
66 |
2,6132 |
| 8.0 |
66 |
2,6105 |
| 9.0 |
66 |
2,6075 |
| 10.0 |
66 |
2,6038 |
| 11.0 |
66 |
2,5996 |
| 12.0 |
48 |
2,5948 |
|
|