new material
Orientation-directed lithium fluoride (LiF) is a high-performance optical material specifically engineered for precise crystallographic alignment, superior ultraviolet transmission, and strong environmental resistance. Manufactured from high-purity LiF, it offers exceptional optical clarity, minimal birefringence, and optimized structural orientation for demanding optical applications. With excellent thermal stability and radiation resistance, this material is widely used in laser optics, spectroscopy, semiconductor processing, and advanced scientific research, ensuring reliable optical performance.
Product Overview:
Orientation-directed lithium fluoride is a crystalline material with specific optical orientations and excellent optical properties, widely used in the manufacture of high-precision optical components. Lithium fluoride crystals adopt a tetragonal crystal structure, offering high transmission, low reflectivity, and low absorption, particularly excelling in the deep ultraviolet (DUV) region. Through oriented growth techniques, high-quality single crystals or large-scale polycrystalline materials can be produced, catering to a range of optical applications. Orientation-directed lithium fluoride is commonly used in high-precision optical instruments such as telescopes and microscopes. Its excellent X-ray absorption characteristics also make it an ideal material for X-ray detectors.
Key Features:
- High Transparency:Exceptional light transmission in the deep ultraviolet (DUV) range, making it ideal for high-precision optical systems.
- Low Refractive Index & Low Reflectivity:Ensures efficient operation of optical elements in optical systems, reducing energy loss.
- Excellent Thermal Stability:With a low thermal expansion coefficient and high thermal stability, it can withstand various environmental conditions.
- Optical Directionality:Oriented growth offers stronger directional properties, ensuring higher optical quality.
- X-ray Absorption Characteristics:Suitable for use in X-ray detectors, improving detection accuracy.
- Thermal Shock Resistance:Capable of withstanding high thermal shock, making it suitable for use in demanding environmental conditions.
Applications:
- Optical Component Manufacturing:Widely used for the production of lenses, prisms, windows, and other optical components, particularly in high-precision optical instruments like telescopes and microscopes.
- X-ray Detectors:As a core material for X-ray detectors, it enhances detection accuracy.
- Environmental Monitoring Equipment:Used to manufacture high-performance protective windows, ensuring stability in laser resonators and high-precision optical systems.
- Laser Systems:Acts as a protective window material to prevent issues such as unstable laser output and mode hopping.
- Deep Ultraviolet Optical Systems:Particularly suited for deep ultraviolet optical instruments, optimizing image quality and shape correction.
| Optical Property | Value |
| Transmission Range | 0.11-7 μm |
| Transmittance | >94.8%@0.6μm |
| Reflection Loss | 5.2%@0.6μm (both surfaces) |
| Absorption Coefficient | 5.9×10⁻³@4.3μm |
| Structure | Cubic Crystal System |
| Cleavage Planes | <100 |
| Physical Property | Value |
| Density | 2.639 g/cm³ |
| Melting Point | 848 ℃ |
| Thermal Conductivity | 11.3 W/(m·K) @ 314K |
| Thermal Expansion | 37.0×10⁻⁶/K @ 283K |
| Knoop Hardness | 415 kg/mm² |
| Specific Heat Capacity | 1562 J/(kg·K) |
| Dielectric Constant | 7.33 @ 1 MHz |
| Young's Modulus | 64.79 GPa |
| Shear Modulus | 55.14 GPa |
| Bulk Modulus | 62.03 GPa |
| Poisson's Coefficient | 0.22 |
| Chemical Property | Value |
| Solubility | 2.7 g/L @ 20℃ |
| Molecular Weight | 25.9394 g/mol |
| Property | Value |
| Material Name | Oriented Crystals LiF |
| Available Size | 3-100mm |
| Material Grade | UV, DUV, VUV |
| Transmittance Range | 0.11-7μm |
| Crystal Structure | Monocrystalline |
| Orientation | <100>, <111> |
| Blank Shape | Round, rectangular, wedge, lens, step drilled, special-shaped |
| Report | Compliance with ROHS and REACH reports |
