Substrate
Material
|
UV grade fused silica or BK7 glass
|
S1 Surface Flatness
|
λ/10 at 633 nm
|
S1 Surface Quality
|
20-10 scratch & dig (MIL-PRF-13830B)
|
S2 Surface Flatness
|
λ/10 at 633 nm
|
S2 Surface Quality
|
20-10 scratch & dig (MIL-PRF-13830B)
|
Diameter Tolerance
|
+0.00 mm-0.12 mm
|
Thickness Tolerance
|
±0.25 mm
|
Parallelism
|
30arcsec
|
Chamfer
|
0.3 mm at 45° typical
|
Technology
|
Electron beam multilayer dielectric
|
Adhesion and Durability
|
Per MIL-C-675A. Insoluble in lab solvents
|
Clear Aperture
|
Exceeds central 85% of diameter
|
Damage Threshold
|
>2J/cm2, 8 nsec pulse, 1064nm typical for BK7 substrates |
Angle of Incidence
|
45±3 degrees
|
Back side antireflection coated |
R<0.5%
|
EKSMA Optics Nd:YAG Laser Beamsplitters
103.65 kB |
This Beamsplitter splits average polarized laser beam into two beams separated by 90° from each other. It is designed for average polarization: R=(Rs+Rp)/2 and T=(Ts+Tp)/2