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Optical grade zinc selenide (ZnSe) is a high-purity optical material known for its exceptional transmission across visible and infrared wavelengths, low absorption, and excellent thermal stability. Manufactured with advanced refinement processes, it provides superior optical clarity, strong resistance to environmental degradation, and precise wavelength control. This material is widely used in laser optics, infrared imaging, spectroscopy, and aerospace applications, ensuring reliable optical performance in advanced scientific and industrial systems.
Product Overview:
Optical grade Zinc Selenide (ZnSe) is an exceptional infrared optical material known for its wide transmission range and excellent thermal shock resistance. Due to its relatively low hardness, ZnSe is easy to machine, making it an ideal material for the production of windows, lenses, beam splitters, and other optical components. Zinc Selenide offers excellent transmission of visible and infrared light, with a transmission range from 0.5 µm to 19 µm. It exhibits outstanding performance in the infrared spectrum, particularly in high-power CO2 laser systems, where its stability and reliability are critical. ZnSe is a vital optical material in various optical and laser applications.
Key Features:
- Wide Transmission Range:ZnSe offers excellent transmission from 0.5 µm to 19 µm, effectively transmitting both visible and infrared light. This makes it ideal for infrared optical systems.
- High Thermal Shock Resistance:Its excellent thermal stability and ability to withstand thermal shock enable ZnSe to function reliably even under extreme temperature fluctuations, making it suitable for high-power CO2 laser systems.
- Ease of Machining:ZnSe's relatively low hardness allows for easy machining into various complex optical shapes, which is ideal for custom optical component manufacturing.
- High Optical Performance:It provides low optical loss and good transmittance, ensuring high-quality image transmission and stable optical performance in demanding environments.
- Durability and Reliability:ZnSe maintains its optical properties and performance even under intense conditions, ensuring longevity and reliability in high-demand applications.
Applications:
- Infrared Optical Systems:ZnSe is widely used in infrared optical systems, such as windows, focusing lenses, beam splitters, and prisms, providing stable and high-performance optical solutions.
- CO2 Laser Systems:Due to its excellent thermal stability, ZnSe is widely utilized in high-power CO2 laser systems as windows and other critical optical components, where it offers exceptional performance.
- Thermal Imaging Systems:ZnSe is used in infrared thermal imaging (FLIR) systems as a protective window and optical element, offering outstanding optical performance and heat resistance.
- High Precision Optical Instruments:ZnSe's machinability and optical uniformity make it an ideal material for the production of precision optical components, ensuring high optical quality and stable performance in scientific instruments.
| Physical Property | Value |
| Crystal Structure | Cubic |
| Density | 5.27 g/cm³ |
| Resistivity | ~10¹² Ω·cm |
| Melting Point | 1525 ℃ |
| Chemical Purity | 100.00% |
| Thermal Expansion | 7.1×10⁻⁶ @ 273K |
| 7.8×10⁻⁶ @ 373K | |
| 8.3×10⁻⁸ @ 473K | |
| Thermal Conductivity | 18.0 W/(m·K) @ 298K |
| Specific Heat Capacity | 0.339 J/(g·K) @ 298K |
| Knoop Hardness | 110 kg/mm² |
| Bending Strength | 55 MPa |
| Young's Modulus | 67.2 GPa |
| Poisson's Coefficient | 0.28 |
| Optical Property | Value |
| Transmission Range | 0.5-22 μm |
| Refractive Index Inhomogeneity | <3×10⁻⁶ @ 632.8μm |
| Absorption Coefficient | 5.0×10⁻³ /cm @ 1300nm |
| 7.0×10⁻⁴ /cm @ 2700nm | |
| 4.0×10⁻⁴ /cm @ 3800nm | |
| 4.0×10⁻⁴ /cm @ 5250nm | |
| 5.0×10⁻⁴ /cm @ 10600nm | |
| Thermal Light Coefficient | 1.07×10⁻⁴ @ 632.8nm |
| 7.0×10⁻⁵ @ 1150nm | |
| 6.2×10⁻⁵ @ 3390nm | |
| 6.1×10⁻⁵ @ 10600μm | |
| Property | Value |
| Material Name | Optical Zinc Selenide Crystals |
| Available Size | 3-300mm |
| Transmittance Range | 0.5-22μm |
| Blank Shape | Round, rectangular, wedge, lens, step drilled, special-shaped |
