9513631

AR coatings: (R<0.2%) on each surface
Clear Aperture: >18
LIDT: >10 J/cm² for 10 ns pulses @ 1064 nm
Material: Crystalline Quartz
Mount: Ø25.4 x 6 mm black anodized metal mount
Parallelism error: <3 arcsec
Retardation order: Zero order
Retardation tolerance: λ/300 @ 20 °C
Retardation: λ/2
Surface quality, S-D: 20-10
Transmitted wavefront distortion, PV: <λ/10 @ 632.8 nm
Wavelength, nm: 980