Orientation: | [100] Or [111] < ±0.5° | Crystal System: | Isometric |
---|---|---|---|
Transmission Range: | 0.15 … 12 µm | Dielectric Constant: | 7.33@f=2MHz |
Specific Mass: | 4.886 G/cm3 | ||
High Light: | BaF2 Fluoride Crystal,Scintillator BaF2 Crystal,2MHz BaF2 Crystal |
Applications
Parameter
Orientation | [100] or [111] < ±0.5° |
Angle Tolerance | < 0.5° |
Parallelism | <20〞 |
Perpendicularity | 5ˊ |
Surface Quality | 10-5 (MIL-O-13830A) |
Wavefront Distortion | <λ/4@633 nm |
Surface Flatness | <λ/8 @633 nm |
Clear Aperture | >90% |
Thickness/Diameter Tolerance | ±0.05 mm |
Crystal System | Isometric |
Habit | Cubic |
Space Group | Fm3m(Oh5 |
Lattice Constants | 6.2001 Å |
Specific mass | 4.886 g/cm3 |
Melting Point | 1354°C |
Flexure Strength (MPa) | 27 |
Tenacity | Brittle |
Thermal Conductivity /(W·cm-1·K-1@25°C) | 0.07 |
Specific Heat/ (J·g-1·K-1) | 1.003 |
Thermal Expansion /(10-6·K-1@25°C ) | 13.7 |
Hardness (kg/mm2@Knoop) | 78 |
Young`s Modulus /GPa | 138.5 |
Fracture | {111} and {100} |
Transmission Range | 0.15 … 12 µm |
Reflective Loss | 6 … 16%@0.2 … 10 µm |
Thermo-optic coefficient(10-6·K-1@30…90°C ) | -18.8 |
Poisson Ratio | 0.31 |
Dielectric Constant | 7.33@f=2MHz |
λ(μm) | n | λ(μm) | n | λ(μm) | n |
0.2 | 1.5573 | 4 | 1.4558 | 9 | 1.4144 |
0.5 | 1.4779 | 5 | 1.4511 | 10 | 1.4011 |
1 | 1.4686 | 6 | 1.4441 | 11 | 1.3865 |
2 | 14647 | 7 | 1.4357 | 12 | 1.3696 |
3 | 1.4612 | 8 | 1.4258 | 12.5 | 1.3585 |
15 | 1.305 |