19.1mm Dia., 6.35mm Thick, N-BK7 Uncoated Laser Window Substrate

Product Details Up to 10-5 Surface Quality and λ/10 Surface Flatness Available Fused Silica or N-BK7 Material Standard Imperial Sizes for Drop-in Replacement Solutions Laser Line Coated Versions Available Mirror Substrates Also Available TECHSPEC Uncoated Laser Window Substrates are laser quality window substrates designed to be used in demanding laser applications. These laser window substrates are available, manufactured from fused silica for high power laser applications that require excellent thermal stability or from N-BK7 for more cost sensitive laser applications. Both the fused silica and N-BK7 laser window substrates feature precision grade λ/10 surface flatness and 10-5 surface quality, ensuring minimal disturbance to transmitted beams. TECHSPEC Uncoated Laser Window Substrates are available in standard imperial sizes from 12.7 to 50.8mm in diameter for the convenience of drop-in replacement into existing laser systems. Custom dimensional and coating options are available, please contact us for custom inquiries. Specifications General Type: Laser Window Substrate Type of Window: Glass Physical & Mechanical Properties Thickness (mm): 6.35 ±0.20 Clear Aperture CA (mm): 17.19 Diameter (mm): 19.10 +0.00/-0.10 Clear Aperture (%): 90 Parallelism (arcmin): <3 Bevel: Protective as needed Edges: Fine Ground Optical Properties Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-BK7 Index of Refraction (n d ): 1.516 Surface Quality: 10-5 Coating: Uncoated Abbe Number (v d ): 64.17 Wavelength Range (nm): 350 - 2200 Surface Flatness (P-V): λ/10 Regulatory Compliance RoHS 2015: Compliant × REACH 201: Compliant × Certificate of Conformance: View ×