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Zinc Selenide

Zinc Selenide lenses are an excellent choice of materials for IR lenses for application between 600 nm to 16 microns wavelengths. Its low absorption coefficient makes it a perfect candidate for applications/instruments using C02 lasers. In mid IR regime it has a very low GVD which makes it suitable for applications using femtosecond IR pulses.

Specifications:
Material:ZnSe

Diameter Tolerance: +0.00, -0.15mm(Standard), +0.00,-0.02mm(Precision)
Flatness: lambda@632.8nm
Surface Quality: 60-40 S/D
Paraxial Focus Length: +/-2%
Centration: <5arc minutes
Clear Aperture: >85% of diameter
Bevel: 0.25x45deg