50.8mm Dia., 1mm Thick, Uncoated, ISP Optics Zinc Selenide (ZnSe) Window | ZC-W-50-1

Product Details Low Dispersion and Absorption from 0.6 – 18µm High Resistance to Thermal Shock Ideal for Thermal Imaging, FLIR, and Medical Systems ISP Optics Zinc Selenide (ZnSe) Windows feature low absorption and low dispersion across a wide wavelength range from the visible to the infrared spectrum. This makes Zinc Selenide ideal for a wide array of infrared applications including thermal imaging, FLIR, and medical systems. 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. ISP Optics Zinc Selenide (ZnSe) Windows are particularly useful for 10.6µm CO2 laser applications, due to its low absorption. These windows are available uncoated or with Broadband Anti-Reflection (BBAR) coating options for 2 – 13µm or 8 – 12µm for increased transmission. 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. Specifications General Model Number: ZC-W-50-1 Type: Protective Window Type of Window: Crystal Physical & Mechanical Properties Clear Aperture CA (mm): 43.18 Diameter (mm): 50.80 +0.00/-0.13 Thickness (mm): 1.00 ±0.13 Parallelism (arcmin): <3 Bevel: Protective as needed Clear Aperture (%): 85 Edges: Fine Ground Poisson's Ratio: 0.28 Young's Modulus (GPa): 67.2 Knoop Hardness (kg/mm 2 ): 120.00 Optical Properties Coating: Uncoated Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Zinc Selenide (ZnSe) Index of Refraction (n d ): 2.631 Surface Quality: 60-40 Wavelength Range (nm): 600 - 18000 Surface Flatness (P-V): λ/20 @ 10.6μm Material Properties Density (g/cm 3 ): 5.27 Coefficient of Thermal Expansion CTE (10 -6 /°C): 7.57 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 240: Compliant ×