Physical Properties
Crystal type |
cubic |
Density, g/cm3 |
2.64 |
Melting point, °C |
870 |
Refractive index @ 1.0, µm |
n = 1.387 |
Transmission band, µm |
0.15-6 |
Lattice constant, Å |
a = 4.026 |
Specifications for LiF Windows
Material |
LiF |
Surface quality |
60-40 scratch & dig (MIL-PRF-13830B) |
Clear aperture |
90% of the diameter |
Diameter tolerance |
+0.0 -0.1 mm |
Thickness tolerance |
±0.2 mm |
Parallelism |
<3 arcmin |
Flatness |
λ/4 @ 633 nm |
Spectral range |
UV, VIS, IR |
EKSMA Optics Lithium Fluoride Components
119.18 kB |
Lithium fluoride (LiF) crystals are well-suited for manufacturing of optical elements (mirrors, windows, lenses) for UV, visible and IR applications. Lithium fluoride (LiF) is very useful for x-ray monochromators and for the study of fundamental properties and defects in crystals