25 x 25mm Enhanced Aluminum, λ/20 Mirror

Product Details Precision Fused Silica Substrate 20-10 Surface Quality Low Coefficient of Thermal Expansion TECHSPEC λ/20 First Surface Mirrors are polished to industry leading surface accuracy and quality specifications to minimize reflected wavefront error. These mirrors feature a precision fused silica substrate with a low coefficient of thermal expansion. Multiple coating options are available, allowing these mirrors to be integrated into applications spanning the visible through infrared spectra. TECHSPEC λ/20 First Surface Mirrors are ideal for beam steering and reflection applications and are available in a variety of size, thickness, and coating options. Note : Surface flatness is measured before coating. Specifications General Type: Flat Mirror Physical & Mechanical Properties Dimensions (mm): 25.0 x 25.0 +0.00/-0.20 Thickness (mm): 4.00 Length (mm): 25.00 Width (mm): 25.00 Clear Aperture (%): 90.00 Parallelism (arcsec): 30.00 Edges: Ground, protective bevel as needed Back Surface: Commercial Polish Optical Properties Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Fused Silica (Corning 7980) Coating: Enhanced Aluminum (450-650nm) Coating Type: Metal Coating Specification: R avg >95% @ 450 – 650nm Wavelength Range (nm): 450 – 650 Surface Flatness (P-V): λ/20 (flatness pre-coating) Surface Quality: 20-10 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 247: Compliant ×