Lithium fluoride LiF LIF-B
DESIOPTOE is a professional manufacturer of fluoride crystals. DESIOPTOE's superior crystal growth technology ensures the continuous production of high-quality LiF crystals. LiF crystals manufactured by DESIOPTOE feature high transmittance in the DUV range and a short cut-off wavelength, making them widely applicable in DUV–IR windows, X-ray imaging and detection, OLED encapsulation coatings, and related fields. DESIOPTOE can provide LiF crystal blanks and optical components in various specifications within 300mm, support customization of crystal orientations, and offer LiF windows, prisms, lenses, and other products for vacuum ultraviolet, visible, and infrared ranges.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Crystal Structure [LiF] | Cubic |
| Cleavage Plane | (100) |
| Lattice Constant | a=4.026Å |
| Molecular Mass | 25.9394g/mol |
| Density | 2.635g/cm³ |
| Melting Point | 870°C |
| Solubility [H₂O at 20°C] | 0.27g/L H₂O at 20°C |
| Heat Capacity | 1.562J/(g·K) |
| Thermal Conductivity [@314K] | 11.3W/(m·K) @314K |
| Linear Thermal Expansion Coefficient | 37.0×10⁻⁶/K |
| Young's Modulus | 64.79 GPa |
| Poisson's Ratio | 0.22 |
| Mohs Hardness | 4 |
| Refractive Index n | n=1.3921 |
| Refractive Index v_d | v_d=95-100 |
| Bubbles/Inclusions | ISO 10110 – 1 x 0.02 |
| Scratch/Dig Limit | 40-20 |
| Micro-roughness Limit | ≤0.5nm |
| Wavefront errors Limit | λ/10 |
| Crystal Orientations | (111) (001) (100) orientations are offered |
| Surface Finishing | TSK/ Wire Cutting, Fine Grinding, Precision Polishing, Coating |
| Optical Components | Window, Wedge, Prism, Plano-Convex Lens, Plano-Concave Lens, Biconvex Lens, Biconcave Lens, Meniscus Lens |
| Coatings | Anti-Reflection, High-Reflection |
| Crystal Structure [Material Grade:LIF-B] | Single Crystal/ Monocrystal |
| Recommended Wavelength [Material Grade:LIF-B] | IR Windows |
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