CUSTOMIZED
Material: UVFS (Corning 7980 0F)
Diameter: 20.0 mm +0/-0.1 mm
Thickness: 5.0 mm +/-0.1 mm
Clear aperture: min 18 mm
Surface quality, S1: 20-10 S-D per CA
Surface quality, S2: polished (<60-40 S-D)
Surface flatness, S1: <λ/6 @ 633 nm per CA
Surface flatness, S2: NA
Parallelism: <5 arcmin
Protective chamfers: 0.1-0.3 mm x 45 deg
Chips: <0.1 mm (<0.05 mm best efforts)
Coatings (IBS):
S1 (arrow marks): HRs_avg>99.5% @ 610 nm - 1040 nm, AOI=45 deg
GDD Rs -30 fs^2 +/- 80 fs^2 @ 610 nm - 1040 nm, AOI=45 deg
S2: SCC
