Active Member
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[China]
Address: No.200, Zgaoxian Road, Jiading Zone, Shanghai, China
Contact name:sales
Nanjing Crylink Photonics Co.,Ltd |
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Description
Calcium Fluoride(CaF2) optical Crystal is widespread used in applications of Ultraviolet(UV),Infrared(IR) and visible light, like optical windows, optical lens and thermal imagining, it has wide transmissive range from 0.13um(UV) to 10um(IR) and low refractive index. Calcium Fluoride’s combination of low absorption with a high damage threshold makes it an excellent material for use with Excimer lasers.
Parameter
Physical and Chemical Properties
| Property | Value |
| Chemical formula | CaF2 |
| Crystal structure | Cubic |
| Lattice parameters | a = 5.462Å |
| Density | 3.18 g/cm3 |
| Melting Point | 1418°C |
| Refractive Index | 1.39908@5um |
| Thermal Conductivity/(W·cm-1·K-1@36°C) | 9.71 |
| Thermal Expansion | 16.5-19.4 |
| Specific Heat / (J·g-1·K-1) | 0.8876×103 |
| Hardness (Mohs) | 4 |
| Young`s Modulus /GPa | 75.79 |
| Shear Modulus / GPa | 33.76 |
| Orientation | [100] or [111] |
| Poisson Ratio | 0.28 |
Specifications Conventional
| Property | Value |
| Materials | CaF2 |
| Orientation | <100>,<±0.5° |
| Paralle | 10ꞌꞌ |
| Perpendicular | 10ꞌ |
| Surface quality | 40//20 |
| Wavefront ditortion | λ/4@632nm |
| Clear aperture | >95% |
| Chamfer | <0.2×45° |
| Thickness/Diameter tolerance | ±0.1 mm |
| Maximum dimensions | Dia300×100mm |
| Surface flatness | λ/4@632nm |
Specifications Highp Recision
| Property | Value |
| Materials | CaF2 |
| Orientation | <001> or <100>,<±0.2° |
| Paralle | 10ꞌꞌ |
| Perpendicular | 5ꞌ |
| Surface quality | 10//5 |
| Wavefront ditortion | λ/8@632nm |
| Clear aperture | >95% |
| Chamfer | <0.2×45° |
| Thickness/Diameter tolerance | ±0.1 mm |
| Maximum dimensions | Dia300×100mm |
| Surface flatness | λ/8@632nm |
Spectrums
