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Magnesium fluoride (MgF₂) single crystal is a high-performance optical material known for its superior ultraviolet and infrared transmission, low refractive index, and excellent durability. Manufactured from high-purity MgF₂, it provides exceptional optical clarity, strong resistance to environmental degradation, and precise wavelength control. This material is widely used in laser optics, spectroscopy, semiconductor lithography, and aerospace applications, ensuring reliable optical performance in advanced scientific and industrial systems.
Product Overview:
Magnesium fluoride single crystals (MgF₂) are materials with excellent optical properties, widely used in optical, laser, infrared, and ultraviolet applications. Their high transparency makes them ideal for use in the ultraviolet, visible, and infrared spectra. As a known UV cutoff optical crystal, magnesium fluoride single crystals are extensively used in laser systems, ultraviolet optical systems, and high-energy detectors. Additionally, due to their low fluorescence emission characteristics, MgF₂ is the preferred choice for ultraviolet photodetectors and lasers.
Key Features:
- High Transparency:Offers excellent light transmission in the ultraviolet, visible, and infrared spectra, particularly suitable for UV optical applications.
- Superior Optical Performance:As an optical crystal for UV cutoff, it provides stable optical properties.
- Birefringence:Exhibits slight birefringence, making it suitable for the fabrication of various optical components.
- Impact and Thermal Resistance:Features excellent mechanical properties, impact resistance, and thermal stability.
- Good Chemical Stability:Maintains stable performance even in harsh environmental conditions.
Applications:
- Optical Systems:Widely used in the manufacture of optical components, including windows, mirrors, lenses, prisms, polarizers, and more.
- Ultraviolet and Laser Technology:Due to its excellent UV transmission, MgF₂ is widely used in UV lasers and photodetectors.
- Infrared and High-Energy Detectors:As an infrared optical material, it is used in infrared optical systems and high-energy physics detection.
- Laser Optical Systems:Extensively used in lasers and laser systems to enhance optical performance and stability.
| Optical Property | Value |
| Transmission Range | 0.12-9 μm |
| Transmittance | >90%@0.193-6μm |
| Refractive Index | NO=1.566, Ne=1.568@0.13μm |
| NO=1.334, Ne=1.343@5μm | |
| Reflection Loss | 11.2%@0.12μm (both surfaces) |
| 5.7%@0.22μm (both surfaces) | |
| 5.1%@1μm (both surfaces) | |
| Absorption Coefficient | 40×10⁻³@2.7μm |
| Structure | Square Crystal System |
| Cleavage Planes | <100 |
| Physical Property | Value |
| Density | 3.177 g/cm³ |
| Melting Point | 1255 ℃ |
| Thermal Conductivity | 21 W/(m·K) //c, 33.6⊥c @ 300K |
| Thermal Expansion | 13.7×10⁻⁶/K //c, 8.9×10⁻⁶/K ⊥c @ 373K |
| Knoop Hardness | 415 kg/mm² |
| Specific Heat Capacity | 1003 J/(kg·K) |
| Dielectric Constant | 4.87 //c, 5.44⊥c @ 1MHz |
| Young's Modulus | 138.5 GPa |
| Shear Modulus | 54.66 GPa |
| Bulk Modulus | 101.32 GPa |
| Poisson's Coefficient | 0.276 |
| Chemical Property | Value |
| Solubility | 0.002 g/L @ 20℃ |
| Molecular Weight | 62.3018 g/mol |
| Property | Value |
| Material Name | Single Crystals MgF₂ |
| Available Size | 3-200mm |
| Material Grade | UV, DUV, VUV |
| Transmittance Range | 0.12-7.5μm |
| Crystal Structure | Monocrystalline |
| Orientation | <001>, <100>, <110>, <210> |
| Blank Shape | Round, rectangular, wedge, lens, step drilled, special-shaped |
