BK7 laser mirror-1064.D50.8

Material: BK7
DIA: 50.8
Thickness:9.5
Clear Aperture ≥85% of central diameter
Coated Surface Figure λ/10 @ 633 nm on select substrates
Coating Technology Electron beam multilayer dielectric
Incidence angle:45 degree
cw 10 MW/cm2 @ 1064 nm
Pulsed 20 J/cm2, 20 nsec, 20 Hz @ 1064 nm
Concentricity ±0.05 mm
Diameter Tolerance +0/-0.25 mm
Radius Tolerance ±0.5%
S1 Surface Figure λ/10 @ 633 nm before coating
S1 Surface Quality 10-5 scratch and dig
S2 Surface Quality Commercial polish
Substrate Material BK7 glass
Thickness Tolerance ±0.25 mm
Wedge ≤5 arc min