Zinc Selenide (ZnSe) Windows

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  • Regular price $89.00



Zinc Selenide (ZnSe) is best for use in high power Co2 laser systems due to the high resistance to thermal shock, low absorption coefficient and low dispersion. ZnSe is a relatively soft material with a Knoop Hardness of 120 and is susceptible to scratches and is not recommended for use in harsh environments.

Firebird provides these in several uncoated stock configurations but can provide customized and coated to your specifications. 

Zinc Selenide (ZnSe) Specs:

Wavelength range: 1000nm-14μm Coating: Uncoated
Diameter tolerance: ±0.13mm Surface Quality: 60/40
Thickness tolerance: ±0.13mm Paralellism: <3 arc minute
Clear Aperture: 90% Density: 5.27g/cm3
Melting point: 1516.85ºC

Young's Modulus: (GPa): 70

Coefficient of Thermal Expansion: 7.1 10-6/°C

Knoop Hardness: 120kg/mm2