new material
Zinc sulfide wedge plates are high-performance optical components designed for superior infrared transmission, excellent mechanical stability, and precise beam deviation control. Manufactured from high-purity ZnS, these wedge-shaped plates offer outstanding optical clarity, minimal absorption, and durability, making them essential for laser optics, infrared imaging, aerospace applications, and precision scientific instruments. Their resistance to environmental degradation ensures reliable performance in advanced optical systems.
Product Overview
Zinc Sulfide (ZnS) wedge plates are optical components made from zinc sulfide material, featuring a unique wedge design. These plates are primarily used to alter the direction and focus of light beams. Due to their excellent optical properties, zinc sulfide wedge plates are widely used in infrared imaging, telemetry, and beam control in optical systems. Through precision processing, including cutting, grinding, and polishing, zinc sulfide wedge plates offer high-precision surface quality and excellent optical performance. They are often coated to improve their transmission and anti-reflection properties, optimizing optical transmission. The wedge shape effectively prevents interference effects (Etalon effect) caused by reflections from the front and rear surfaces of high-parallelism windows and reduces optical feedback interference in laser cavities, enhancing the stability of optical systems.
Key Features
- Full Band Transmission: Zinc sulfide covers a wide transmission range from visible light to long-wave infrared and microwave bands.
- High Transparency: Exhibits excellent light transmission in both visible and infrared bands, making it suitable for various optical applications.
- Low Reflectivity: With coating treatment, the plates have low reflectivity, reducing light loss and enhancing optical system performance.
- High Thermal Stability: Zinc sulfide has good thermal stability, making it suitable for high-temperature environments.
- Excellent Beam Control: The wedge design allows for precise beam displacement control, improving optical system accuracy.
- Low Absorption: Zinc sulfide has low light absorption, ensuring minimal loss as light passes through.
Applications
- Infrared Imaging: Zinc sulfide wedge plates are used for efficient beam control and imaging in infrared optical systems.
- Telemetry Systems: Widely used in telemetry systems to help adjust beam direction and improve beam stability.
- Laser Systems: Used for laser beam correction to reduce interference effects and optimize laser output stability.
- Optical Transmission: In infrared optical systems, these wedge plates provide high transparency and low reflectivity, improving system performance.
- Spectral Analysis: Used in spectrometers for precise optical path adjustments and beam control.
- Infrared Dichroic Mirrors: In infrared spectrometers and optical monitoring systems, zinc sulfide wedge plates enable efficient beam deflection and adjustment.
| Physical Property | CVD Zinc Sulfide | Multispectral CVD Zinc Sulfide |
| Density | 4.09 g/cm³ | 4.09 g/cm³ |
| Resistivity | ~10¹² Ω·cm | ~10¹¹ Ω·cm |
| Melting Point | 1827 ℃ | - |
| Chemical Purity | 100.00% | 100.00% |
| Thermal Expansion | 6.6×10⁻⁶ @ 273K | 6.3×10⁻⁶ @ 273K |
| 7.3×10⁻⁶ @ 373K | 7.0×10⁻⁶ @ 373K | |
| Thermal Conductivity | 16.7 W/(m·K) @ 298K | 27.2 W/(m·K) @ 298K |
| Specific Heat Capacity | 0.469 J/(g·K) @ 298K | 0.515 J/(g·K) @ 298K |
| Knoop Hardness | 200-235 kg/mm² | 160 kg/mm² |
| Bending Strength | 103 MPa | - |
| Young's Modulus | 74.5 GPa | 74.5 GPa |
| Poisson's Coefficient | 0.29 | 0.29 |
| Optical Property | CVD Zinc Sulfide | Multispectral CVD Zinc Sulfide |
| Transmission Range | 1-14 μm | 0.37-14 μm |
| Refractive Index Inhomogeneity | <7.3×10⁻⁴ @ 10.6μm | <0.2×10⁻⁴ @ 632.8nm |
| Absorption Coefficient | 0.2 /cm @ 10.6μm | 0.2 /cm @ 10.6μm |
| Thermal Light Coefficient | 4.6×10⁻⁵ @ 1150nm | 5.43×10⁻⁵ @ 632.8nm |
| 4.3×10⁻⁵ @ 3390nm | 4.21×10⁻⁵ @ 1150nm | |
| 4.1×10⁻⁵ @ 10.6μm | 3.87×10⁻⁵ @ 3390nm |
| CVD Zinc Sulfide - Refractive Index and Wavelength | |||
| Wavelength (nm) | Refractive Index (n) | Wavelength (nm) | Refractive Index (n) |
| 620 | 2.355 | 9800 | 2.203 |
| 1000 | 2.292 | 10600 | 2.192 |
| 3800 | 2.253 | 11400 | 2.18 |
| 5000 | 2.246 | 12200 | 2.167 |
| 7000 | 2.232 | 13800 | 2.132 |
| 9000 | 2.212 | 14200 | 2.126 |
| Multispectral CVD Zinc Sulfide - Refractive Index and Wavelength | |||
| Wavelength (nm) | Refractive Index (n) | Wavelength (nm) | Refractive Index (n) |
| 400 | 2.545 | 8000 | 2.223 |
| 1010 | 2.292 | 9000 | 2.213 |
| 2060 | 2.264 | 10000 | 2.201 |
| 3500 | 2.255 | 11250 | 2.183 |
| 4500 | 2.25 | 12000 | 2.171 |
| 5000 | 2.247 | 13000 | 2.153 |
| Property | Value |
| Diameter Range | 2-300mm |
| Focal Length | 15-5000mm |
| Thickness | 0.12-60mm |
| Surface Quality | 80-50, 60-40, 40-20, 20-10, 10-5 |
| Surface Flatness | λ/2, λ/4, λ/8, λ/10 |
| Clear Aperture | >90% |
| Coating | Customizable |
