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Single crystal calcium fluoride (CaF₂) is a high-purity optical material known for its exceptional transmission across ultraviolet, visible, and infrared wavelengths. It features low dispersion, strong resistance to thermal and environmental degradation, and superior optical clarity. With its precision structure, CaF₂ is widely used in laser systems, spectroscopy, semiconductor lithography, and advanced scientific applications, ensuring optimal performance in demanding optical environments.
Product Overview:
Single crystal calcium fluoride (CaF₂) is a high-performance optical material, known for its excellent optical transparency, particularly in the infrared (IR) wavelength range, with a transmission rate exceeding 80%. It effectively transmits infrared light signals and maintains outstanding thermal stability even in high-temperature environments, ensuring consistent optical performance and structural stability. Additionally, CaF₂ is highly resistant to corrosion, chemicals, and mechanical stress, making it suitable for use in harsh environments while retaining clarity and transparency.
Key Features:
- High Optical Transparency:Over 80% transmission in the infrared spectrum, making it ideal for infrared light transmission.
- Exceptional Thermal Stability:Maintains good optical performance and structural stability even in high-temperature environments.
- Corrosion and Chemical Resistance:Stable in various chemical environments, perfect for use in harsh conditions.
- Mechanical Strength and Hardness:Resistant to scratching and wear, suitable for use in tough environments.
Applications:
- Infrared Sensors:Used in infrared sensors, including infrared thermography devices and other IR measurement equipment.
- High-Temperature Monitoring:Applied in temperature distribution monitoring in high-temperature furnaces and for infrared imaging in high-temperature processes.
- Chemical Analysis:Used in chemical analysis and reaction monitoring via infrared spectroscopy.
- Aerospace and Optical Communications:Suitable for aerospace applications and optical communication systems, where high-performance materials are required under extreme conditions.
Optical Applications:
- Lenses and Optical Components:Widely used for the production of lenses, prisms, and windows.
- High-Quality Lens Material:With a high refractive index, it is ideal for manufacturing high-quality lenses.
- Optical Filters and Mirrors:Its low scatter and absorption properties make it perfect for optical filters and mirror applications.
- Optical Coatings:Suitable for coating optical components to modify reflection, transmission, and absorption properties.
| 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 |
| Property | Value |
| Material Name | Single Crystals CaF₂ |
| Available Size | 3-200mm |
| Material Grade | VIR, UV, DUV |
| Transmittance Range | 0.13-10μm |
| Crystal Structure | Monocrystalline |
| Orientation | <111>, <110>, <100>, <001>, <220> |
| Blank Shape | Round, rectangular, wedge, lens, step drilled, special-shaped |
