COMBINE DUE 111119Randy Ramiro, Buyer II, Phone 6509264253, Email Rramiro@slac.stanford.eduThe specifications are as follows:
Substrate material: Excimer Grade CaF2 equivalent to Corning single crystal ultraviolet grade,
bubbles/inclusions ISO 10110 - 1/1 x 0.02
Diameter: 38.1mm +0.0/-0.1 mm
Clear Aperture: central Ø1"
Center Thickness: 3.3mm +/- 0.1 mm
Surface quality: 20-10
Plano surface flatness (S2): 1/5 wave P-V at 633 nm over clear aperture
Radius of Curvature(S1): Various, as listed in table below
Spherical surface irregularity: ¼ wave at 633 nm over central 1"
Radius of Curvature Tolerance: ± 0.5% of the nominal value
Centration: < 2 arc minutes
Surface roughness: <7nm
AR coating both faces, R < 0.5% across the spectral band 700 nm to 900nm
CITE: https://www.fbo.gov/spg/DOE/SLAC/STAN/SLAC304631/listing.html