Physical Properties
Crystal type |
cubic |
Density, g/cm3 |
4.89 |
Melting point, °C |
1386 |
Refractive index @ 0.265 µm |
n = 1.51217 |
Refractive index @ 10.3 µm |
n = 1.39636 |
Transmission band, µm |
0.15-12 |
Specifications
Material |
BaF2 |
Surface quality |
60-40 scratch & dig (MIL-PRF-13830B) |
Clear aperture |
90% of diameter |
Diameter tolerance |
+0.0 -0.25 mm |
Thickness tolerance |
0.2 mm |
Parallelism |
3 arcmin |
Flatness |
1 λ per inch @ 633 nm |
EKSMA Optics Barium Fluoride (BaF2) Optical Components
66.19 kB |
Barium fluoride is used for optical windows, prisms and lenses transmitting from ultraviolet into infrared, it can be used as an infrared laser window or lens. BaF2 is recommended for use as a vacuum ultraviolet window where high radiation resistance is required. BaF2 is less soluble than LiF, but relatively more soluble than MgF2 and CaF2.