The 20BW40-30 Laser-Grade Parallel Window is parallel to less than 30 arc sec for minimal transmitted beam deviation. This 2 inch (50.8 mm) diameter N-BK7 window is 10 mm thick. It is uncoated. For demanding applications, such as intracavity laser applications, holography, and multiphoton imaging, this window has a λ/20 surface flatness and 10-5 scratch-dig significantly reducing unwanted scatter.
| Newport MKS | |
|---|---|
| Product Category | Optical Windows |
| Product Number | 20BW40-30 |
| Product Name | Optical Window, Parallel, N-BK7, 50.8 mm, λ/20, Uncoated |
| Window Material | BK7 Glass; Grade A N-BK7 |
| Windows Features | No Coating |
| Coating Material | Uncoated |
| Window Diameter, Side Length, or Rectangular Length | 50.8 mm (2 inch) |
| Thickness | 10 mm (0.3937 inch) |
