new material
Magnesium fluoride circular window is a high-performance optical component known for its excellent ultraviolet and infrared transmission, superior chemical stability, and mechanical durability. Manufactured from high-purity MgF₂, it provides outstanding optical clarity, minimal optical distortion, and resistance to moisture degradation, making it an essential material for laser optics, spectroscopy, aerospace applications, and precision scientific instruments. Its ability to function in extreme environments ensures reliable performance in advanced optical technologies.
Product Overview
Magnesium Fluoride circular windows are high-performance optical materials with excellent transparency, particularly across a wide range of wavelengths from ultraviolet to mid-infrared (0.12μm to 7.5μm). Not only does it have excellent optical transmission properties, but it also offers superior mechanical and thermal shock resistance, as well as a high laser damage threshold. The hardness of magnesium fluoride makes this window resistant to chemical corrosion and exhibits birefringent properties, ensuring stable optical performance over extended use.
Key Features
- High Transparency: Excellent optical transmission performance across the ultraviolet to mid-infrared range.
- Superior Mechanical Properties: Magnesium fluoride is a hard, non-deformable material with high mechanical shock resistance.
- Thermal Shock Resistance: Excellent thermal shock performance, maintaining stability even in high-temperature environments.
- High Laser Damage Threshold: Suitable for high-power laser applications, with excellent resistance to laser-induced damage.
- Chemical Corrosion Resistance: Can withstand harsh chemical environments, making it suitable for demanding applications.
- Wide Band Transmission: Effectively transmits light across the ultraviolet to mid-infrared spectrum, ideal for broadband optical systems.
Applications
- Ultraviolet Optical Systems: Used in optical equipment that requires transmission in the ultraviolet to mid-infrared wavelength range, such as excimer lasers and UV detectors.
- Laser Systems: Applied in high-power laser systems, maintaining excellent transparency and durability against laser-induced damage.
- Optical Transmission: Used as an optical window in systems requiring high transparency, thermal resistance, and mechanical shock resistance.
- High-Energy Physics and Research: Suitable for high-energy experiments and research equipment, capable of withstanding harsh environmental conditions.
- Chemical and Medical Equipment: Ideal for applications requiring high chemical resistance, ensuring long-term stability.
| Optical Properties | Value |
| Transmission Range | 0.12-9μm |
| 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<sup>-3</sup>@2.7μm |
| Structure | Square Crystal System |
| Cleavage Planes | <100> |
| Physical Properties | Value |
| Density | 3.177 g/cm<sup>3</sup> |
| Melting Point | 1255 ℃ |
| Thermal Conductivity | 21 W/(m×K) //c, 33.6 W/(m×K) ⊥c @ 300K |
| Thermal Expansion | 13.7 × 10<sup>-6</sup>/K //c, 8.9 × 10<sup>-6</sup>/K ⊥c @ 373K |
| Knoop Hardness | 415 kg/mm<sup>2</sup> |
| Specific Heat | 1003 J/(kg×K) |
| Dielectric Constant | 4.87 //c, 5.44 ⊥c @ 1 MHz |
| Young's Modulus | 138.5 GPa |
| Shear Modulus | 54.66 GPa |
| Bulk Modulus | 101.32 GPa |
| Poisson's Ratio | 0.276 |
| Chemical Properties | Value |
| Solubility | 0.002 g/L @ 20℃ |
| Molecular Weight | 62.3018 g/mol |
| Parameter | Range |
| Diameter Range | 2-300 mm |
| Thickness | 0.12-60 mm |
| Surface Finish | 80-50, 60-40, 40-20, 20-10, 10-5 |
| Surface Accuracy | λ/2, λ/4, λ/8, λ/10 |
| Parallelism | <3' - 30" |
| Aperture Transmission | >90% |
| Coating | Customizable |
