NEW Edmund Optics 39-267 Sapphire Window 35mm Dia 1mm Thick NIR II Coated

NEW Edmund Optics 39267 Sapphire Window 35mm Dia 1mm Thick NIR II Coated

Brand: Edmund Optics Part Number / Model: 39267 (Stock #39-267) Substrate Material: Single crystal sapphire (Al2O3) Component Type: Protective Window Diameter: 35.00 mm (+/-0.25 mm tolerance) Thickness: 1.00 mm (+/-0.10 mm tolerance) Optical Coating: Dual-sided NIR II broadband anti-reflection coating (750 - 1550 nm wavelength optimization range) Coating Performance Metrics: Rabs less than or equal to 1.5 percent at 750 - 800 nm, Rabs less than or equal to 1.0 percent at 800 - 1550 nm, and Ravg less than or equal to 0.7 percent over the full band Clear Aperture: Greater than or equal to 31.50 mm (90 percent of overall diameter) Surface Quality: 80-50 scratch-dig specification Parallelism: Less than or equal to 3.5 arcminutes