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Zinc Selenide (ZnSe) Windows

  • low absorption in the red end of the visible spectrum
  • not hygroscopic<
  • quite stable in the laboratory environment

Zinc selenide (ZnSe) is the most popular material for infrared applications. Due to very wide transmission range covering 0.6-22 µm chemical vapor deposition grown ZnSe as a high optical quality material is used to manufacture optical components (windows, mirrors, lenses) for high power IR lasers.

Physical properties

Crystal type cubic
Density, g/cm3 5.27
Melting point [°C] 1525
Refractive index @ 8-13 µm n = 2.417-2.385
Refractive index @ 10.6 µm n = 2.403
Transmission band, µm 0.6÷22
Bulk absorption coefficient cm-1 @ 10.6 µm 0.6-1.0×10-3
Coefficient of linear thermal expansion, °C-1 8.56×10-6


ZnSe Windows - Coated AR/AR@10.6 µm, AOI=0°
Code Diameter Thickness Coating Item price, USD In stock Add to cart
560-6122 ø 12,7 mm 2 mm AR/AR@10.6 µm, AOI=0° 85.- In stock Add to cart
560-6253 ø 25,4 mm 3 mm AR/AR@10.6 µm, AOI=0° 142.- In stock Add to cart
560-6383 ø 38,1 mm 3 mm AR/AR@10.6 µm, AOI=0° 226.- In stock Add to cart
560-6505 ø 50,8 mm 5 mm AR/AR@10.6 µm, AOI=0° 396.- In stock Add to cart
560-6766 ø 76,2 mm 6,4 mm AR/AR@10.6 µm, AOI=0° 1029.- Request Add to cart

ZnSe Windows - Uncoated
Code Diameter Thickness Coating Item price, USD In stock Add to cart
560-6120 ø 12,7 mm 2 mm uncoated 47.- Request Add to cart
560-6121 ø 12,7 mm 3 mm uncoated 50.- Request Add to cart
560-6250 ø 25,4 mm 2 mm uncoated 72.- In stock Add to cart
560-6251 ø 25,4 mm 3 mm uncoated 76.- In stock Add to cart
560-6381 ø 38,1 mm 3 mm uncoated 149.- Request Add to cart
560-6501 ø 50,8 mm 3 mm uncoated 242.- In stock Add to cart
560-6503 ø 50,8 mm 5 mm uncoated 319.- In stock Add to cart
All prices are FCA Vilnius.
Prices are valid only for direct orders. For orders via distributors contact them directly.
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