

Lithium fluoride (LiF) crystal belongs to cubic crystal system, the cleavage plane is (100), it has excellent optical properties, especially in deep ultraviolet band. With the development of deep ultraviolet technology in recent years, lithium fluoride crystal has attracted more and more attention for its high transmittance and short cut-off wavelength in deep ultraviolet band. OST Photonics offers high quality LiF s...
Lithium fluoride (LiF) crystal belongs to cubic crystal system, the cleavage plane is (100), it has excellent optical properties, especially in deep ultraviolet band. With the development of deep ultraviolet technology in recent years, lithium fluoride crystal has attracted more and more attention for its high transmittance and short cut-off wavelength in deep ultraviolet band.
OST Photonics offers high quality LiF substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.
Excellent optical properties
High transmittance and short cut-off wavelength in deep ultraviolet band
Optical windows, lenses, prisms and refractive elements in the ultraviolet-visible-infrared field
X-ray monochromator
Orientation:<100>,<110>,<111>, etc.
Dimension: 1”, 2”, 10x10mm, 20x20mm, 30x30mm, etc.
Thickness: 0.5mm, 1.0mm, 2.0mm, 5.0mm, 10mm, 20mm, etc.
Available items: wafers, substrates, windows, prisms, blanks and customized optics
Crystal System | Cubic |
Lattice Constant | a=4.026 Å |
Melting point | 870 ℃ |
Density | 2.635 g/cm3 |
Hardness | 4.0 Mohs |
Thermal Expansion Coefficient | 37.0 x 10^-6 /K |
Refractive Index | n=1.39 |
Transmission Wavelength | 0.11-7.00 μm |
Transmittance | > 90% @0.2~4.5 μm |
Color Deviation Hf-Hc | 0.00395 |
Temperature Coefficient (dn/dt x 10-6) | 12.7 @0.6 m |
Orientation | <100>,<110>,<111>, etc. |
Orientation Tolerance | ±0.5° or better |
Dimension | 1”, 2”, 10x10mm, 20x20mm, 30x30mm, etc. |
Dimension Tolerance | ±0.1 mm or better |
Thickness | 0.5mm, 1.0mm, 2.0mm, 5.0mm, 10mm, 20mm, etc. |
Thickness Tolerance | ±0.05 mm or better |
Surface Finish | Single side polished (SSP)/Double sides polished (DSP) |
Surface Roughness | ≤10Å (5µm×5µm) |
Package | Class 100 clean bag, Class 1000 super clean room |
Send us your dimensions, orientation, surface finish and quantity. Our engineers reply with a technical proposal and price.