| WL (nm) |
n |
| 143.3 |
1.711 |
| 160.5 |
1.5547 |
| 172.5 |
1.5289 |
| 181.9 |
1.5152 |
| 193 |
1.5015 |
| 200 |
1.49547 |
| 220 |
1.4811 |
| 240 |
1.4712 |
| 260 |
1.46391 |
| 280 |
1.45836 |
| 300 |
1.45402 |
| 500 |
1.43647 |
| 1000 |
1.42888 |
| 2000 |
1.42385 |
| 3000 |
1.41785 |
| 4000 |
1.40963 |
| 5000 |
1.39895 |
| 6000 |
1.38559 |
| 7000 |
1.36932 |
- Plane and curved mirror substrates
- Windows, prims and spherical lenses
- Special polishing (rms-roughness 1-2 Å) possible
- HR-, PR-, AR-coatings for the NIR and DUV/VUV wavelength
- High transmission from VUV to IR
- IR grade, UV grade und VUV grade material available
- Optical isotropic crystal
- Optical thermal coefficient: - 10.6 x 10-6 K-1
- Structure: cubic
- Lattice constant: a = 5.462 Å
- Density: 3.98 g/cm³
- Mohs hardness: 4
- Young modulus: 75.8 GPa
- Poisson ratio: 0.26
- Thermal linear expansion coefficient 18.85 x 10-6 K-1
- Specific heat capacity: 854 J/(kg?K)
- Thermal conductivity: 9.71 W/(m?K)
- Melting point: 1360 °C
- Molecular Weight: 78.08
- Solubility: in Water: 0.0016 gram / cm³
