9501640

Adhesion and durability: Per MIL-C-675C
Angle of Incidence (AOI), °: 0
Circumference finish: fine grounding
Clear Aperture: >90
Coatings on S1: AR(R<0.3%)@700-900nm
Coatings on S2: AR(R<0.3%)@700-900nm (used under vacuum)
Damage threshold: > 1J/cm2 @ 300 ps 10Hz 800 nm
Dimensions, mm: Ø38.1 (+0.0/-0.5)
Group Delay Dispersion: < ± 100 fs2
Material: BK7
S1 Flatness, PV IR S2 Flatness, PV: <λ/4 @ 632.8 nm
Surface quality, S-D: 20-10
Thickness, mm: 6 (±0.1)
Transmitted wavefront distortion, PV: <λ/4 @ 632.8 nm
Wedge / Parallelism error: <5 arcmin