Fused Silica Window Substrates can be used for multipurpose applications. Purchase optically finished substrates to be coated with an AR coating, highly reflective dielectric or metallic coating.

● Uncoated substrates ready for AR or reflective coating application

● Fine, low scatter surface

● 30 arcsecond parallelism

●  ʎ/10 flatness, 15-5 scratch-dig

● Front and back surfaces are optically polished

● Material:UV Fused Silica 

● Diameter Tolerance:+0.0/-0.1mm 

● Thickness Tolerance:±0.1mm 

●  Surface Accuracy:λ/4@632.8nm 

● Parallelism:<1' 

● Surface Quality:40-20 

● Clear Aperture:>90% 

● Bevelling:<0.2×45°

● Coating:UV AR 290nm-370nm