The 10Q20BB.HR2 BroadBeam High Reflector Laser Mirror is 25.4 mm diameter, 6.0 mm thick, and is coated for 350-1100 nm, optimized for 0-50° angle of incidence. BroadBeam High Reflectors have an average reflectivity of 97.5% or better. They are manufactured using UV grade fused silica substrates and metal-dielectric hybrid coating. The BB.HR2 coating covers wavelengths from the UV to the visible to the IR.