Key Features:
- High transmission range of 0.48-21 µm
- Low absorption in the infrared spectrum
- Excellent thermal conductivity
- Ideal for high-power CO₂ laser applications
- Superior imaging quality in thermal imaging systems
Description: ZnSe is a yellow transparent crystalline material with an average grain size of about 70 µm. Its transmission range spans from 0.48 to 21 µm, making it an ideal choice for various infrared applications, including high-power CO₂ laser systems. ZnSe’s low infrared absorption coefficient makes it perfect for thermal imaging and other IR systems, where it can accurately determine the temperature of distant targets through its broad spectral response. This material is also highly valued for its optical and mechanical properties, ensuring reliable performance in demanding applications.
Physical Properties:
| Property | Specification |
|---|---|
| Density | 5.27 g/cm³ |
| Mohs Hardness | 105 kg/mm² |
| Diameter Tolerance | +0.0/-0.1 mm |
| Length Tolerance | ±0.1 mm |
| Surface Flatness | λ/8 @ 632.8 nm |
| Parallelism | < 1 arc minute |
| Surface Quality | 40-20 Scratch/Dig |
| Clear Aperture | > 90% |
| Chamfer | < 0.25 x 45° |
| Coating | Custom designs available |
Optical Properties:
| Property | Specification |
|---|---|
| Transmission Range | 0.48-21 µm |
| Refractive Index | 2.402 @ 10.6 µm |
| Absorption Coefficient | < 0.0005 cm⁻¹ @ 10.6 µm |
| Thermal Conductivity | 18 W·m⁻¹·K⁻¹ |
| dn/dT | 61.2 x 10⁻⁶ /°C |
Standard Specifications:
| Property | Specification |
|---|---|
| Orientation | [100] or [111] within ±0.5° |
| Diameter | Up to 4 inches |
| Thickness | 0.5 to 10 mm |
| Surface Quality | 40/20 Scratch/Dig (MIL-PRF-13830B) |
| Surface Flatness | λ/8 @ 632.8 nm |
| Parallelism | < 1 arc minute |
| Perpendicularity | < 5 arc minutes |
| Coating | AR/AR, AR/DLC, and other custom coatings |
Other Properties:
- High thermal stability, ensuring performance under high power operations.
- Excellent chemical durability, making it resistant to harsh environments.
Applications:
- High-power CO₂ laser systems
- High and low power laser optics
- Thermal imaging systems
- Medical and scientific applications
- Astronomy and IR night vision
Processing and Handling:
- ZnSe crystals require careful handling to avoid surface damage and contamination.
- Use gloves or finger cots when handling ZnSe components.
- Store in a clean, dry environment with temperature control to prevent thermal shock.
Why Choose Shape Optics:
- We provide high-quality ZnSe crystals with precise specifications and excellent optical properties.
- Our crystals undergo stringent quality control to ensure reliability and performance in demanding applications.
Shape Optics Strength and Capabilities:
- Expertise in crystal growth and fabrication techniques.
- Advanced metrology and inspection facilities to ensure superior product quality.
- Customization options available to meet specific requirements.
- Comprehensive support and consultation services to assist in the integration of ZnSe crystals into various optical systems.
