Material: UVFS (Corning 7980 0F)
Diameter: 25.4 mm (+0/-0.1 mm)
Thickness: 3.0 mm (+/-0.1 mm)
Clear aperture: >90%
Surface quality, S1/S2: 20-10 S-D
Surface flatness, S1/S2: ~λ/5@633 nm over 10 mm area
Parallelism: <10 arcsec
Protective chamfers: 0.1-0.4 mm x 45°
Coatings (IBS):
S1: HRs>99.95% + HRp>99.5% @ 976 nm + HTp>98% (best effort 99%) @ 1030nm, AOI=45°
S2: ARp < 0.1% @ 1030 nm, AOI=45°
