Material: Crystalline Quartz
Clear aperture: >18 mm
Surface quality: 20-10 S-D
Transmitted WFD: <λ/10 @ 633 nm
Design wavelength: 515nm
Retardation order: Zero Order
Retardation and tolerance: λ/4 +/-λ/300 @ 20 deg C
Beam deviation: <10 arcsec
AR coating: R<0.2%@515nm, AOI=0 deg per surface
LIDT: >20 J/cm2, 1064nm, 10ns, 100 Hz
Mounted in Dia25.4 mm +0/-0.1 mm x 6 mm +/-0.2 mm black anodized metal mount
Engraving: λ/4 @ 515 nm and dash marks fast axis
