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Current location: Optics Crystals
| The CaF2 is an excellent material in laser optics field. It has very wide transmission range from 130nm to 9500 nm, especially, has the high transmission in IR range. CaF2 is widely used in Laser, IR and UV optics. | |
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| Product Presentation |
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Properties of CaF2 crystal
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Formula |
CaF 2 |
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Max size |
φ180mm |
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Transmittive scope (um) |
0.15-9.0 |
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Density (g/cm3) |
3.18 |
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Melting point (℃) |
1418 |
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Mohs hardness |
4 |
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Thermal expansion (10-6/K) |
16.2-19.4 |
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Thermal conductivity |
9.17 |
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Dissolution (g/cm3) |
0.0016 |
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Wavelength (um) |
0.2 |
0.5 |
1.0 |
5.0 |
10.0 |
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Reflactive Index |
1.4951 |
1.4365 |
1.4289 |
1.3990 |
1.3002 |
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Absorption coeffcient (cm-1) |
0.10@0.2um;0.01@0.4um;0.03@2.7um |
Specifications:
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Size |
Diameter up to 220mm (IR grade);
Diameter up to 160mm (UV grade); |
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Inclusion |
None visible |
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Dimension tolerance |
±0.1mm |
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Oriential tolerance |
1 arc minutes |
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Angle tolerance |
1 arc minutes |
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Scratch/Dig code |
10/5 to MIL-O-13830A |
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Parallelism |
6 arc seconds |
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Flatness |
λ/20 @ 632.8nm |
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