ZnSe windows (Type WNZ) are used as end elements or protective windows. Similar to cutting lenses, they are made exclusively with high quality "laser grade" material.
In addition to standard AR coatings for 10.6 µm, special coatings such as broadband ARs or dual-band ARs are available.
General Specifications
- Diameter tolerance: +0/- 0.2 mm
- Thickness tolerance: ±0.25 mm
- Wedge: <3 arc min
- Surface figure: typ. λ/20 at 10.6 µm (depending on diameter/thickness ratio)
- Clear Aperture: >85 % of diameter
Further specifications can be found on the data sheet.
ZnSe Brewster Windows (Type WBZ) and ZnSe Enhanced Brewster Window (type EWBZ)
Brewster windows are used in polarization separation. If WBZ windows are installed below the Brewster angle (q= 67.4° for ZnSe), the p component is fully transmitted and approximately 50% of the s component is reflected per side. When using EWBZ windows, a special coating is applied to the front side of the window, which ensures that the reflection for s-pol is increased to >98%.
General Specifications
- Diameter tolerance: +0/- 0.2 mm
- Thickness tolerance: ±0.25 mm
- Wedge: <3 arc min, or on request 2.0±1.0 arc min.
- Surface figure: typ. λ/20 at 10.6 µm (depending on diameter/thickness ratio)
- Clear Aperture: >85 % of diameter
Further specifications can be found on the data sheet.
Have the coating of your ZnSe windows regularly refurbished by us! You can find out more about our services here:
LASER COMPONENTS UK - Your competent partner for optical and optoelectronic components in the United Kingdom.
Welcome to LASER COMPONENTS UK Ltd., your expert for photonics components. Each product in our wide range of detectors, laser diodes, laser modules, optics, fiber optics, and more is worth every Pound (£/GBP). Our customized solutions cover all conceivable areas of application: from sensor technology to medical technology. You can reach us here:
Goldlay House, 114 Parkway
Chelmsford Essex CM2 7PR
United Kingdom
Phone: +44 1245 491 499
Email: info(at)