eSource Optics Custom P/N ES # 120-10195-OW: eSource Optics to supply Custom VUV-UV Lyman Alpha Broadband Flat Mirrors coated with ES # 120 VUV-UV High Reflectance broadband metallic Al & MgF2 Mirrors having >=77-80% Reflectance* at 121.6nm, Normal Incidence, per the following:
Diameter (Dia = Ø) & Tolerance: 4.000” +/-0.005”
Thickness & Tolerance: 0.375” ±0.010”
Surface Figure: ~1/4 wave @ 633nm nominal one side, Coated Side before coating
Surface Finish: 20-10 Scratch-Dig one side, Coated Side before coating
Clear Aperture: Central 3.750” Diameter minimum
Chamfer: Edges ground and safety Beveled ~ 0.010” x 45 deg. typical