03 May Calcium Fluoride (CaF2)
Posted at 21:29h
in CaF2
Calcium Fluoride (CaF2) crystals has a good transmission in the range UV-VIS-IR. It is commonly used for UV and IR optics and lasers because of its low absorbance and high damage threshold.
| Specification | |
|---|---|
| Transmission wavelength | 130nm - 10000nm |
| Material | CaF₂ |
| Density (gr/cm³) | 3.18 |
| Dielectric constant | 6.76@1HMZ |
| Melting point (°C) | 1360 |
| Purity (%) | 99.9996 |
| Thermal expansion coefficient (1/°C) | 18.85*10¯⁶ 7.3*10¯⁶ @373k |
| Thermal Conductivity (J/k.m.s.) | 9.71 |
| Specific heat (J/g.k) | 0.854 |
| Knoop hardness (Kg/mm²) | 158.3 |
| Young modulus (GPa) | 75.8 |
| Shear modulus (GPa) | 33.77 |
| Poisson ratio | 0.26 |
| Bulk modulus (GPa) | 82.71 |
| Reflection loss (2side) | 5.4% @5000nm |
| Thermo-optical coefficient | -10.6*10¯⁶ |
Calcium Fluoride (CaF2) right angle prism
| Technical parameters | Commercial grade | Precision grade | High precision grade |
|---|---|---|---|
| Dimension range | 1-300mm | 2-300mm | 2-300mm |
| Dimension tolerance | ±0.1mm | ±0.025mm | ±0.01mm |
| Thickness tolerance | ±0.1mm | ±0.025mm | ±0.01mm |
| Angle tolerance | ±5' | ±15" | ±2" |
| Surface quality | 60-40 | 40-20 | 20-10 |
| Surface accuracy | 1.0λ | λ/10 | λ/20 |
| Bevelling | 0.1-0.5mmx45° | ||
| Substrate | CaF₂ | ||
Calcium Fluoride (CaF2) windows
| Technical parameter | Commercial grade | Precision grade | High precision grade |
|---|---|---|---|
| Dimension range | 1-600mm | 2-600mm | 2-600mm |
| Dimensioni tolerance | ±0.1mm | ±0.025mm | ±0.01mm |
| Thickness tolerance | ±0.1mm | ±0.025mm | ±0.01mm |
| Angle tolerance | ±3' | ±1' | ±5" |
| Surface quality | 60-40 | 40-20 | 20-10 |
| Surface accuracy | 1.0λ | λ/10 | λ/20 |
| Bevelling | 0.1-0.5mmx45° | ||
| Substrate | CaF₂ | ||