25.4mm Dia., 1mm Thick, Uncoated Suprasil Window

Product Details High Transmission from 200 to 3500nm <1 ppm OH Content for Minimal Absorption Losses 10-5 Surface Quality and up to λ/10 TWD Suprasil Windows are constructed from high purity synthetic fused silica and provide high, flat transmission from 200 to 3500nm. Suprasil has similar mechanical properties to fused silica with the added benefit of having no absorption bands in the visible or infrared spectra, resulting in no transmission loss between 1400 - 2700nm. Compared to Infrasil, Suprasil has lower absorption with a <1 ppm OH content, causing negligible increase in temperature from bulk absorption when used with high powered lasers. Suprasil Windows are ideal for laser material processing, medical laser applications, or applications using Nd:doped or 2 micron lasers. Specifications General Type: Protective Window Type of Window: Glass Physical & Mechanical Properties Clear Aperture CA (mm): 22.86 Diameter (mm): 25.40 +0.00/-0.10 Thickness (mm): 1.00 ±0.10 Bevel: Protective as needed Clear Aperture (%): 90 Edges: Fine Ground Parallelism (arcsec): <5 Poisson's Ratio: 0.17 Young's Modulus (GPa): 70 Knoop Hardness (kg/mm 2 ): 591.00 Optical Properties Coating: Uncoated Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Suprasil 300 Index of Refraction (n d ): 1.459 Surface Quality: 10-5 Transmitted Wavefront, P-V: λ/10 Abbe Number (v d ): 67.8 Wavelength Range (nm): 200 - 3500 Material Properties Density (g/cm 3 ): 2.20 Coefficient of Thermal Expansion CTE (10 -6 /°C): 0.51 (0 to +100°C) 0.58 (0 to +200°C) Regulatory Compliance Certificate of Conformance: View ×