50mm Dia. Uncoated, λ/20 Fused Silica Window

Product Details R < 0.25% for 266nm, 355nm, 532nm or 1064nm Low Auto-Fluorescence Damage Thresholds up to 10 J/cm 2 @ 10ns @ 1064nm TECHSPEC λ/20 High Power Laser Line Windows features a high efficiency, high damage threshold V-coating to maximize transmission at the design wavelength. Damage thresholds ranging from 2 - 10J/cm 2 allow easy integration into most Nd:YAG laser systems. The coating is deposited on a precision excimer grade UV grade fused silica substrate for excellent thermal stability, low wavefront distortion, and ultra-low auto-fluorescence. TECHSPEC λ/20 High Power Laser Line Windows are available in diameters ranging from 5 to 50mm. For custom options or wedged versions, please contact our Sales Department . Specifications General Type: Laser Line Window Type of Window: Glass Physical & Mechanical Properties Clear Aperture CA (mm): 45.00 Diameter (mm): 50.00 +0.00/-0.10 Thickness (mm): 3.00 ±0.10 Bevel: Protective as needed Clear Aperture (%): 90 Edges: Fine Ground Parallelism (arcsec): ≤5 Poisson's Ratio: 0.16 Young's Modulus (GPa): 73 Knoop Hardness (kg/mm 2 ): 522.00 Knoop Hardness (GPa): 522 Optical Properties Angle of Incidence (°): 0 Coating: Uncoated Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Fused Silica Excimer Grade (Corning 7980 KrF) Index of Refraction (n d ): 1.458 Surface Quality: 10-5 Transmitted Wavefront, P-V: λ/20 Abbe Number (v d ): 67.8 Wavelength Range (nm): 200 - 2200 Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification. 5 J/cm 2 @ 10ns Material Properties Density (g/cm 3 ): 2.20 Coefficient of Thermal Expansion CTE (10 -6 /°C): 0.52 (+5 to +35°C) 0.57 (0 to +200°C) 0.48 (-100 to +200°C) Fused Silica Grade: 7980 KrF 0A Regulatory Compliance RoHS 2015: Compliant × REACH 201: Compliant × Certificate of Conformance: View ×