In stock
Outer diameter: 76.2 mm (+0/-0.2 mm) (bevel cut for c-axis)
Transmitted wavefront distortion, PV: <λ/8 @ 632.8 nm per 40 mm diameter, central area
Thickness, mm: 0.8 mm (+/-0.1 mm)
Surface quality, S1/S2: 40-20 S-D
Parallelism error: <30 arcsec
Material: Crystalline Quartz
Clear aperture: 66.2 mm diameter (central area)
AR coatings: R<0.2% at each surface
Retardation: LO λ/2@ 308 nm (+/- λ/150 @ 20 °C)
Transmitted wavefront distortion, PV: <λ/8 @ 632.8 nm per 40 mm diameter, central area
Thickness, mm: 0.8 mm (+/-0.1 mm)
Surface quality, S1/S2: 40-20 S-D
Parallelism error: <30 arcsec
Material: Crystalline Quartz
Clear aperture: 66.2 mm diameter (central area)
AR coatings: R<0.2% at each surface
Retardation: LO λ/2@ 308 nm (+/- λ/150 @ 20 °C)
