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Zinc Selenide (ZnSe) Windows
●   High transmission T>90% at 3-12 μm 
●   Low dispersion and low absorption
●   Ideal for thermally demanding environments
Zinc Selenide (ZnSe) windows is an excellent choice for any IR applications due to its broad wavelength range (3 µm to 16 µm). Zinc selienide is a chemically vapor diposited material commonly used in thermal imaging and medical systems. Zinc selenide (ZnSe) windows has a high index of refraction which normally requires an anti-reflection coating to achieve high transmission. Zinc selenide is relatively soft with low scratch resistance thus not recommended for use in harsh enviornment. Extra caution is required during cleaning, handling, and mounting.