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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 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 TECHSPEC Zinc Selenide (ZnSe) Windows, apply uniform pressure and wear Latex finger cots or gloves to prevent contamination. These windows are available uncoated or with broadband anti-reflection coating in diameters ranging from 5 to 127mm.
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.
| AR COATED ZINC SELENIDE | |
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Typical visible transmission of a 3mm thick ZnSe window coated with BBAR (1650-3000nm), BBAR (3000-12000nm), and BBAR (8000-12000nm coating). This data is outside the design wavelength range of the BBAR coatings and thus is not guarenteed, but provides a reference for visible guide laser useage. |
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Typical transmission of a 3mm thick ZnSe window with BBAR (1650-3000nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: Ravg <1% @ 1650 - 3000nm Data outside this range is not guaranteed and is for reference only. |
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Typical transmission of a 3mm thick ZnSe window with BBAR (3000-12000nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: Ravg <5.0% @ 3 - 12μm Data outside this range is not guaranteed and is for reference only. |
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Typical transmission of a 3mm thick ZnSe window with BBAR (8000-12000nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: Ravg ≤0.5% @ 8 - 12μm Data outside this range is not guaranteed and is for reference only. |
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