Plate beamsplitters consist of a thin window with a beam splitter coating deposited on one side. They are used at a 45-degree incident angle. The beam is partially reflected at a 90-degree angle and partially transmitted through the glass.
| Material | Float Glass | |||||
| Thickness | 1.0 ± 0.2 mm | |||||
| Dimensions | MM | |||||
| Dimensional Tolerance | ± 0.2 mm | |||||
| Surface Quality | 80-50 | |||||
| Surface Accuracy | 4 Waves / 25 mm | |||||
| Parallelism | ± 5 Arc Minutes | |||||
| Edges | Cut | |||||
| Coating | ||||||
| Front | All Dielectric ±5% R/T at 550nm | |||||
| Back | BBAR 450-650 nm | |||||
| * All dimensions are in mm | ||||||