Calcium Fluoride has widespread IR applications as spectroscopic CaF2 windows, CaF2 prisms and CaF2 lenses. Especially pure grades of Calcium Fluoride (CaF2) find useful applications in the UV and as UV Excimer laser windows. Calcium Fluoride (CaF2) is available doped with Europium as a gamma-ray scintillator.
| Chemical Formula | CaF2 |
| Crystal Class | Cubic, cleaves [111] plane |
| Lattice Constant, Å | 5.46 |
| Density, g/cm3 (20 °C) | 3.18 |
| Molecular Weight | 78.08 |
| Dielectric Constant for 105 Hz | 6.76 |
| Melting Temperature, K | 1630 |
| Thermal Conductivity, W/(m K) at 273 K | 10 |
| Thermal Expansion, 1/K at 300 K | 18.9 x 10-6 |
| Specific Heat, cal/(g K) at 273 K | 0.204 |
| Debye Temperature, K | 510 |
| Young's Modulus, GPa | 75.79 |
| Rupture Modulus, GPa | 0.0365 |
| Shear Modulus, GPa | 33.76 |
| Bulk Modulus, GPa | 83.03 |
| Poisson's Ratio | 0.28 |
| Knoop Hardness, kg/mm2 | 178 [100], 160 [110] |
Windows | Lenses | Prisms | |
Diameter | +0/-0.1mm | +0/-0.1mm | - |
Length & Width | ±0.1mm | ±0.1mm | ±0.1mm |
Thickness | ±0.1mm | ±0.1mm | ±0.1mm |
Clear Aperture | >85% | >85% | >80% |
Parallelism | <1 arc minute | - | - |
Centration | - | <3 arc minutes | - |
Angle Tolerance | - | - | <3 arc minutes |
Flatness | Lambda/2-Lambda | Lambda/2-Lambda | Lambda/2-Lambda |
Surface Quality | S/D 40-20 | S/D 40-20 | limit S/D 40-20 |
Send Email
售前客服
Skype