new material
Barium fluoride rectangular window is a high-performance optical component known for its excellent infrared transmission, chemical stability, and resistance to harsh environmental conditions. Engineered from BaF₂, it provides superior optical clarity and durability, making it an essential material for infrared imaging, aerospace applications, spectroscopy, and precision scientific instruments. Its low refractive index and resistance to moisture degradation ensure reliable performance across a wide range of industrial and research applications.
Product Overview
The barium fluoride rectangular window is an optical component known for its excellent transmission and mechanical properties. It is widely used in optical systems due to its outstanding light transmission in the ultraviolet (UV), visible, and infrared (IR) ranges. Barium fluoride is particularly suited for low-temperature imaging systems, aerospace optical systems, and laser optical systems. It serves as a key element in optical windows, lenses, beam splitters, filters, and prisms, providing protection for instruments from environmental influences while maintaining system performance stability.
Key Features
- Excellent Transmission Performance: Barium fluoride offers over 90% transmission in the 0.2–10μm wavelength range, making it ideal for optical instruments and laser systems.
- High Hardness and Impact Resistance: Barium fluoride material has a high hardness and offers superior resistance to mechanical and thermal shock.
- Chemical Stability: Barium fluoride is insoluble in water and demonstrates excellent chemical stability, making it suitable for a variety of environmental conditions.
- High Surface Quality: The manufacturing process includes fine machining and polishing to ensure smooth and polished surfaces.
- Coating Options: Can be coated to enhance light transmission and anti-reflection properties, further improving optical performance.
Applications
- Low-Temperature Cryogenic Imaging Systems: Used in infrared detectors and imaging systems to provide stable optical windows.
- Aerospace Optical Systems: Serves as a high-strength, environment-resistant optical element for spacecraft and related equipment.
- Laser Optical Systems: Utilized in lasers, laser systems as optical windows, lenses, filters, beam splitters, and prisms.
- Optical Instruments: Widely applied in precision optical instruments such as spectrometers and microscopes to provide high-quality optical performance.
| Optical Property | Value |
| Transmission Range | 0.15-14 μm |
| Transmittance | >94%@0.35nm-10.8μm |
| Refractive Index | 1.462@2.58μm, 1.45@5μm |
| Reflection Loss | 6.8%@2.58μm (both surfaces) |
| 6.5%@5μm (both surfaces) | |
| 5.3%@10.35μm (both surfaces) | |
| Absorption Coefficient | 3.2×10⁻⁴@6μm |
| Structure | Cubic Crystal System |
| Cleavage Planes | <111 |
| Physical Property | Value |
| Density | 4.89 g/cm³ |
| Melting Point | 1386 ℃ |
| Thermal Conductivity | 11.72 W/(m·K) @ 286K |
| Thermal Expansion | 18.1×10⁻⁶/K @ 273K |
| Knoop Hardness | 82 kg/mm² |
| Specific Heat Capacity | 410 J/(kg·K) |
| Dielectric Constant | 7.33 @ 1 MHz |
| Young's Modulus | 53.07 GPa |
| Shear Modulus | 25.4 GPa |
| Bulk Modulus | 56.4 GPa |
| Poisson's Coefficient | 0.343 |
| Chemical Property | Value |
| Solubility | 1.7 g/L @ 20℃ |
| Molecular Weight | 175.3238 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 |
