Optics Supplier, Germanium, Calcium Fluorides, IR lens
Optics Supplier, Germanium, Calcium Fluorides, IR lens
Zinc Selenide (ZnSe) windows
Zinc selenide (ZnSe) windows are optical components made from ZnSe crystals, renowned for their excellent optical properties, particularly in the mid-infrared (IR) spectral region.
ZnSe exhibits high transparency in the mid-IR range, typically from 0.6 μm to 20 μm, making it suitable for numerous optical applications.
YREMOptics manufactures ZnSe windows in various shapes and sizes. Here is a standard examples of manufacturing in stock:
| Zinc Selenide (ZnSe) Windows | ||
| Uncoated and AR-Coated Versions Available | ||
| Available | Diameter (mm) | Thickness (mm) |
| 12.7 | 3.0 | |
| 25.4 | 5.0 | |
| Size Tolerance | +0.0 / – 0.2mm |
| Thickness Tolerance | + / – 0.3mm |
| Wavelength Range(Uncoated) | 600 nm – 16 µm |
| AR Coating Range | 1.6 – 13.0 μm |
| Clear Aperture | >85% |
| Parallelism | <1 arc min |
| Surface Quality | 40 – 20 scratch-dig |
Advanced polishing techniques are employed to produce ZnSe windows with precise dimensions, surface finishes, and optical properties.
Zinc Selenide windows prove highly suitable for numerous IR applications, notably in high-power CO2 laser systems. Featuring low IR absorption and exceptional resistance to thermal shock, ZnSe stands out. However, it’s worth noting that the soft nature of ZnSe material renders it unsuitable for harsh environmental conditions.