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Zinc Selenide (ZnSe) Windows

Zinc Selenide (ZnSe) Windows

Due to a 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.

from 61 $
delivery Estimated delivery time: 4 - 5 days
Products
Specifications
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Description
Diameter
Thickness
Coating
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Uncoated
Code Diameter Thickness Coating Price Delivery Add to cart
560-6120 ø 12.7 mm 2 mm uncoated 61 $ 4 - 5 days
560-6121 ø 12.7 mm 3 mm uncoated 63 $ 4 - 5 days
560-6250 ø 25.4 mm 2 mm uncoated 76 $ Request
560-6251 ø 25.4 mm 3 mm uncoated 80 $ 4 - 5 days
560-6381 ø 38.1 mm 3 mm uncoated 149 $ 4 - 5 days
560-6501 ø 50.8 mm 3 mm uncoated 297 $ Request
560-6503 ø 50.8 mm 5 mm uncoated 374 $ Request
Coated
Code Diameter Thickness Coating Price Delivery Add to cart
560-6122 ø 12.7 mm 2 mm AR/AR@10.6 µm, AOI=0° 94 $ Request
560-6253 ø 25.4 mm 3 mm AR/AR@10.6 µm, AOI=0° 143 $ 4 - 5 days
560-6383 ø 38.1 mm 3 mm AR/AR@10.6 µm, AOI=0° 226 $ 4 - 5 days
560-6505 ø 50.8 mm 5 mm AR/AR@10.6 µm, AOI=0° 451 $ 4 - 5 days
560-6766 ø 76.2 mm 6,4 mm AR/AR@10.6 µm, AOI=0° 1095 $ Request

 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

 

Specifications

Material ZnSe
Surface quality 40-20 scratch & dig (MIL-PRF-13830B)
Clear aperture 90% of the diameter
Diameter tolerance +0.0 -0.13 mm
Thickness tolerance ±0.1 mm
Parallelism 3 arcmin
Flatness λ /40 per inch @ 10.6 µm over clear aperture
Coating both surfaces AR coated @ 10.6 µm, R ≤ 0.5% per surface

 

 

EKSMA Optics Zinc Selenide (ZnSe) Optical Components
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  • 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 a 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.