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20mm Dia. x 2mm Thickness, 3-12μm Coated, ZnSe Window

Stock #63-210
€299.00
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Qty 1-10
€299.00
Qty 11
€269.10
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Clear Aperture (%):
90
Diameter (mm):
20.00
Dimensional Tolerance (mm):
+0.0/-0.1
Thickness (mm):
2.00 ±0.1
Coating:
BBAR (3000-12000nm)
Coating Specification:
Ravg <5.0% @ 3 - 12μm
Coefficient of Thermal Expansion CTE (10-6/°C):
7.57
Density (g/cm3):
5.27
Index of Refraction nd:
2.631
Knoop Hardness (kg/mm2):
120
Parallelism (arcmin):
<1
Poisson's Ratio:
0.28
Substrate:
Zinc Selenide (ZnSe)
Surface Flatness:
λ/10 @ 10.6μm
Surface Quality:
60-40
Type:
Protective Window
Wavelength Range (μm):
3 - 12
Wavelength Range (nm):
3000 - 12000

Regulatory Compliance

RoHS 2015:
Reach 205:

Product Family Description

  • Low Dispersion
  • Available Uncoated or AR Coated
  • Ideal for Thermal Imaging, FLIR, and Medical Systems

TECHSPEC® Zinc Selenide (ZnSe) Windows are ideal for a wide variety of infrared applications including thermal imaging, FLIR, and medical systems. This chemically vapor deposited material has wide usage in high power CO2 laser systems because of its low absorption coefficient and high resistance to thermal shock. Zinc Selenide (ZnSe) is a relatively soft material that scratches easily and it is not recommended in harsh environments because its Knoop Hardness is only 120. When handling, apply uniform pressure and wear Latex finger cots or gloves to prevent contamination.

Note: Special care should be taken when handling Zinc Selenide as it is a toxic material. Always wear rubber or plastic gloves to avoid risk of contamination.

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