new material
Barium fluoride window plate with a rectangular aperture is a high-performance optical component designed for superior infrared and ultraviolet transmission, excellent chemical stability, and resistance to environmental degradation. Manufactured from high-purity BaF₂, it offers outstanding optical clarity and durability, making it an essential material for spectroscopy, aerospace applications, laser systems, and scientific instruments. Its resistance to moisture and harsh conditions ensures reliable performance in precision optical technologies.
Product Overview
The calcium fluoride rectangular aperture window plate is a high-quality optical element, often used as a protective window for electronic sensors and external environmental detectors. The rectangular aperture design ensures efficient light transmission without affecting the magnification of the optical system. Calcium fluoride (CaF₂) material is known for its excellent optical transparency and anti-reflective properties, making it ideal for UV, visible, and infrared spectral ranges. The plate is manufactured using precision polishing and machining techniques to ensure high surface quality and optical precision.
Key Features
- High Transparency: Calcium fluoride has excellent transparency across the ultraviolet, visible, and infrared spectral ranges, providing efficient light signal transmission with minimal loss.
- Anti-Reflective Properties: With its low refractive index and excellent anti-reflection characteristics, calcium fluoride reduces light reflection losses, enhancing the optical system’s transmission efficiency.
- Thermal and Chemical Stability: CaF₂ exhibits excellent thermal and chemical stability, maintaining outstanding performance in high-temperature and corrosive environments.
- High Precision: Manufactured using advanced techniques such as glued disc polishing, high-speed polishing, and CNC machining, calcium fluoride window plates ensure smooth surfaces and meet high-precision optical requirements.
Applications
Calcium fluoride rectangular aperture window plates are widely used in advanced optical fields, particularly in the following applications:
- Sensor and Detector Protection Windows: As protective windows, calcium fluoride plates isolate external environments and ensure the safety and stability of internal components.
- Optical Systems: Due to their high transparency and low reflectivity, calcium fluoride windows are commonly used in UV, visible, and infrared optical systems, such as optical lenses and laser components.
- Laser Technology: In lasers, calcium fluoride is used as an essential component in resonator mirrors and output mirrors, ensuring optimal laser output quality and frequency control.
- Optical Coatings: Calcium fluoride is frequently used in the production of anti-reflective coatings, reducing surface reflections and improving the throughput and efficiency of optical components.
| Optical Property | Value |
| Transmission Range | 0.13-10 μm |
| Transmittance | >94%@193nm-7.87μm |
| Refractive Index | 1.4288@2.5μm, 1.39908@5μm |
| Reflection Loss | 5.4%@5μm (both surfaces) |
| Absorption Coefficient | 7.8×10⁻⁴@2.7μm |
| Structure | Cubic Crystal System |
| Cleavage Planes | <111 |
| Physical Property | Value |
| Density | 3.18 g/cm³ |
| Melting Point | 1420 ℃ |
| Thermal Conductivity | 9.71 W/(m·K) @ 293K |
| Thermal Expansion | 18.5×10⁻⁶/K @ 273K |
| Knoop Hardness | 158.3 kg/mm² |
| Specific Heat Capacity | 854 J/(kg·K) |
| Dielectric Constant | 6.76 @ 1 MHz |
| Young's Modulus | 75.8 GPa |
| Shear Modulus | 33.77 GPa |
| Bulk Modulus | 82.71 GPa |
| Poisson's Coefficient | 0.26 |
| Chemical Property | Value |
| Solubility | 0.016 g/L @ 20℃ |
| Molecular Weight | 78.0748 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 |
