ALKOR Technologies - your CRYSTAL optics supplier.   ALKOR Technologies - your CRYSTAL optics supplier.
ALKOR Technologies - your CRYSTAL optics supplier.

ZINC SELENIDE (ZnSe) windows

  • Low dispersion
  • Available uncoated or AR coated for 3-12m, 8-12m, 10.6m
  • Ideal for Thermal Imaging and Spectroscopy applications

ZnSe windows

Alkor Technologies - manufacturer of ZnSe windows. Two types of CVD ZnSe windows are available: IR or Laser grade. The largest dimensions of ZnSe windows: Diameter 80mm, thickness 15mm. Rectangular ZnSe windows are also available. Please contact us for quotation of your custom ZnSe window. Our Sales team will answer you within 24 hours. If you do not see a suitable size, write a request, we will make a window according to your drawing at no additional cost.

Cat# Dia, in Dia,mm TH, in TH, mm
ZnSe-W-12.7-1 0.5 12.7 0.039 1.0
ZnSe-W-12.7-2 0.5 12.7 0.079 2.0
ZnSe-W-13x2 0.512 13 0.079 2.0
ZnSe-W-25.4-1 1 25.4 0.039 1.0
ZnSe-W-25.4-2 1 25.4 0.079 2.0
ZnSe-W-25.4-3 1 25.4 0.118 3.0
ZnSe-W-25.4-4 1 25.4 0.157 4.0
ZnSe-W-25.4-5 1 25.4 0.197 5.0
ZnSe-W-25.4-6 1 25.4 0.236 6.0
ZnSe-W-32x3 1.26 32 0.118 3.0
ZnSe-W-38.1-3 1.5 38.1 0.118 3.0
ZnSe-W-38.1-4 1.5 38.1 0.157 4.0
ZnSe-W-38.1-5 1.5 38.1 0.197 5.0
ZnSe-W-38.1-6 1.5 38.1 0.236 6.0
ZnSe-W-41x3 1.614 41.0 0.118 3.0
ZnSe-W-49x3 1.929 49 0.118 3.0
ZnSe-W-50.8-3 2 50.8 0.118 3.0
ZnSe-W-50.8-4 2 50.8 0.157 4.0
ZnSe-W-50.8-5 2 50.8 0.197 5.0
ZnSe-W-50.8-6 2 50.8 0.236 6.0
ZnSe-W-63.5-6 2.5 63.5 0.236 6.0
ZnSe-W-63.5-8 2.5 63.5 0.315 8.0
ZnSe-W-76.2-6 3 76.2 0.236 6.0
ZnSe-W-76.2-8 3 76.2 0.315 8.0

Standard specifications:
Diameter tolerance: +0/-0.1mm;
thickness tolerance: +/-0.1mm;
Clear Aperture: 90%;
Parallelism: 3 arc min;
Flatness: 1/20 wave at 10.6m;
Surface finish: S/D 60/40

Zinc Selenide is suitable for applications in the IR band (8 to 14 m) and is often used as a IR viewport window for thermography. We provide a large variety of ZnSe windows for vacuum viewports suitable for ISO-K, KF and flanges. Rectangular ZnSe window available

BBAR coating for 2-13m and 8-12m can be applied on ZnSe window upon request.