Available in 25 and 50 mm dia sizes, RoHS-compliant Broadband IR Laser Mirrors feature copper substrate. Resulting laser damage threshold is 50 kW/cm² (typ), and substrate also dissipates excess laser-generated heat to promote mechanical stability. Suited for demanding IR laser applications, such as those using quantum cascade or CO2 lasers, mirrors feature greater than 98% reflectivity from 2–20 µm with surface accuracy of 1/20λ at 10.6 µm and Clear Aperture (CA) of 90%.