Substrate Material: UVFS, CAF2, MgF2, etc.

Surface shape: λ/4@632.8nm or better

Dimension Tolerance:  ±0.1mm

Surface quality: S/D 60/40 or better

Coating wavelength: 200nm-2500nm

Coating performance:

R>99%@1064nm, Tave >80%@230-400nm-0°