LiF Substrate
Lithium fluoride (LiF) crystal belongs to cubic crystal system, the cleavage plane is (100), it has excellent optical properties, especially in deep...
LiF Substrate
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...
- ManufacturerOST Photonics
- CategoryCrystal Wafer and Substrate
- Lead TimeQuoted per order
- CustomizationSize, orientation and surface finish to drawing
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.
Features
- Excellent optical properties
- High transmittance and short cut-off wavelength in deep ultraviolet band
Applications
- Optical windows, lenses, prisms and refractive elements in the ultraviolet-visible-infrared field
- X-ray monochromator
Processing Capability
- 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
Specification and properties of LiF Substrates
| 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 |
Other Crystal Wafer and Substrate Materials
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