Beamsplitter Cube is a more sophisticated type consisting of two right-angle prisms cemented together at their hypotenuse faces. The cemented face of one prism is coated. Before cementing, a metallic or dielectric layer has the desired reflecting properties, both in the percentage of reflection and the desired color. The absorption loss to the coating is minimal and transmission and reflection approach 50%.
| Material | BK7 or upon request |
| Dimension | 2.5×2.5; 3.2×3.2; 12.7×12.7; 25.4×25.4 |
| Surface Accuracy | <λ/4 @λ=632.8nm |
| Surface Quality | 60/40 |
| Clear Aperture | ˃90% |
| beam deviation | <3’ |
| Splitting Ratio | 50/50±5%；T=(Ts+Tp)/2；R=(Rs +Rp)/2 |
| Coating | HR+ AR coating |
| Damage Threshold | >500mJ/cm2, 20ns, 20Hz, @1064nm |
