Knight Optical’s Pellin–Broca prisms provide precise 90° beam deviation with wavelength selection achieved through prism rotation. Manufactured from UV-grade fused silica, they feature input and output faces set at Brewster’s angle for 240 nm, ensuring high transmission of p-polarised light. Ideal for spectroscopy, laser optics, and wavelength separation, these prisms are also available in custom specifications to meet your exact application needs - contact us today to discuss your requirements.
AR coatings.
Mirror coatings
Stock prisms can be machined thinner.

| Name | Dimension A (mm) | Dimension B (mm) | Dimension C (mm) | Dimension D (mm) | Thickness (mm) | Angle A (degrees) | Angle B (degrees) | Angle C (degrees) | Angle D (degrees) | Refractive Index (nd) | Price | Buy |
| PPF2725 | 45 | 27 | 32 | 24.7 | 15 | 90 | 78.5 | 135 | 56.5 | 1.458 |
US$236.30
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