Material: |
Synthetic quartz (VIOSIL, Japan) |
Diameter: |
25.4mm (-0.2, +0.0mm) |
Radius of Curvature (ROC): |
60.0mm (+/-0.1mm) (Concave) |
Focal Length (EFL): |
-30.0mm |
Edge Thickness: |
5.5mm (+/-0.1mm) |
Flatness: |
Lambda/4 @633nm over 1 inch area |
Surface Quality (Aft coating): |
20-10 S/D |
Front Surface: |
R>99% for S and P polarization for angles of incidence from 0-Deg to 45-Deg (Reflection curve below)
HR @ 400-900nm coating on Concave surface |
Back Surface: |
Fine Polished ; Uncoated ; Flat Surface |
Clear Aperture: |
>90% of Diameter |
Laser Damage Threshold: |
2kW/cm2 CW, 100mJ/cm2 10ns pulse |