Orientation: | [100] Or [001] < ±0.5° | Crystal Structure: | Tetragonal |
---|---|---|---|
Density: | 3.18g/cm3 | Transmission Range: | 0.11 … 7.5 µm |
High Light: | MgF2 Fluoride Crystal,Tetragonal Fluorite Crystal,MgF2 Optical Crystal |
Parameter
Orientation | [100] or [001] < ±0.5° |
Orientation Tolerance | < 0.5° |
Parallelism | 5〞 |
Perpendicularity | 3ˊ |
Surface Quality | 10-5 (Scratch/Dig) |
Wavefront Distortion | <λ/4@632 nm |
Surface Flatness | <λ/8 @632 nm |
Clear Aperture | >90% |
Chamfer | <0.1×45° |
Thickness/Diameter Tolerance | ±0.05 mm |
Maximum Dimensions | Dia150 mm×60mm(C-cut) |
Crystal Structure | tetragonal |
Lattice Constants | 4.64 |
Density | 3.18 g/cm3 |
Melting Point | 1255°C |
Thermal Conductivity /(W·m-1·K-1@25°C) | 0.3 |
Specific Heat/ (J·g-1·K-1) | 1.003 |
Thermal Expansion /(10-6·K-1@25°C ) | 13.7 |
Hardness (Mohs) | 4.15 |
Young`s Modulus /GPa | 138.5 |
Transmission Range | 0.11 … 7.5 µm |
Refractive Index | no = 1.3836, ne = 1.3957 @0.405 µm |
Reflective Loss | 5.1% @4.0 µm; 11.2% @0.12 µm |
Poisson Ratio | 0.271 |
μm | No | Ne | μm | No | Ne | μm | No | Ne |
0.1137 | 1.7805 | 0.1149 | 1.742 | 0.1179 | 1.68 | |||
0.1198 | 1.651 | 0.121 | 1.628 | 1.632 | 0.13 | 1.566 | 1.568 | |
0.14 | 1.5095 | 1.523 | 0.15 | 1.48 | 1.494 | 0.16 | 1.461 | 1.475 |
0.17 | 1.448 | 1.462 | 0.18 | 1439 | 1.453 | 0.19 | 1.431 | 1.444 |
0.2 | 1.423 | 1.437 | 0.22 | 1.413 | 1.426 | 0.248 | 1.403 | 1.416 |
0.257 | 1.401 | 1.414 | 0.266 | 1.399 | 1.412 | 0.28 | 1.396 | 1.409 |
0.3 | 1.393 | 1.405 | 0.33 | 1.389 | 1.402 | 0.337 | 1.389 | 1.401 |
0.35 | 1.387 | 1.4 | 0.355 | 1.386 | 1.399 | 0.4 | 1.384 | 1.396 |
0.546 | 1.379 | 1.39 | 0.7 | 1.376 | 1.388 | 1.087 | 1.373 | 1.385 |
1.512 | 1.37 | 1.382 | 2 | 1.368 | 1.379 | 2.5 | 1.364 | 1.375 |
3.03 | 1.36 | 1.37 | 3.571 | 1.354 | 1.364 | 4 | 1.349 | 1.359 |
4.546 | 1.341 | 1.35 | 5 | 1.334 | 1.343 | 5.556 | 1.324 | 1.332 |