new material
Ultraviolet calcium fluoride (CaF₂) is a high-purity optical material known for its outstanding ultraviolet transmission, low dispersion, and superior resistance to thermal and environmental degradation. Manufactured from high-quality CaF₂, it provides exceptional optical clarity, minimal birefringence, and precise wavelength control, making it ideal for UV laser systems, spectroscopy, semiconductor lithography, and scientific research applications.
Product Overview:
Ultraviolet Calcium Fluoride is a high-purity optical material designed specifically for ultraviolet (UV) applications. With excellent optical properties, it is widely used in UV light transmission and focusing, especially in high-precision optical instruments, laser systems, and photolithography technologies. UV-grade CaF₂ not only provides high transmission in the UV and visible light spectrum but also features low birefringence, low dispersion, and other characteristics that ensure high precision and stability in optical systems.
Key Features:
- High Transparency and Wide Transmission Range:Provides outstanding light transmission in both ultraviolet and visible light ranges, making it ideal for optical windows, lenses, and other optical elements.
- Low Birefringence and Low Dispersion:Reduces optical deviations and ensures high-precision optical transmission and focusing.
- High Mechanical Strength and Chemical Stability:Exhibits high hardness, resistance to mechanical shock, and thermal shock, maintaining stable performance even in high-temperature and corrosive environments.
- High Laser Damage Threshold and Low Fluorescence Radiation:Performs excellently in high-power laser systems, making it suitable for key optical components in lasers and photolithography equipment.
- UV Resistance:Exhibits strong resistance to ultraviolet light, ensuring stable performance in UV optical systems.
Applications:
- Optical Instruments:Used as high-transparency optical components in optical instruments, telescopes, microscopes, and other precision devices.
- Optical Communication:Applied for UV light transmission in high-precision optical communication systems.
- Laser Technology:Widely used in high-power laser systems and photolithography machines, especially in environments with high laser damage threshold requirements.
- UV Lithography:One of the key materials used in UV photolithography for manufacturing precise lithographic elements.
- Astronomical Observation and Surveying:Utilized in astronomical telescopes and surveying equipment to meet the high-resolution optical needs of these applications.
| 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 | UV Grade CaF₂ |
| Available Size | 3-420mm |
| Material Grade | UV |
| Transmittance Range | 200-1100nm |
| Crystal Structure | Monocrystalline, Polycrystalline |
| Orientation | <111>, <110>, <100>, <001>, <220> |
| Blank Shape | Round, rectangular, wedge, lens, step drilled, special-shaped |
