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The beamsplitter cubes are manufactured from to cemented right angle prisms. One of the prisms is coated with a dielectric polarization beamsplitter on the inner surface. This layer has a high reflection for s-polarized light and a high transmission for p-polarized light over a broad spectral range.
The extinction ratio in transmission is significantly better than in reflection due to the residual reflection of the beamsplitter coating. By optimizing the angle of incidence it is often possible to minimize the residual reflection in order to obtain extinction ratios in reflection well below the specification (typ. Rp :R s <1:100).< /p>
The outer surfaces are coated with broadband antireflection layers. By default the prisms are provided without holder. The cubes are available with coatings for three standard spectral ranges: 400-700 nm, 600-900 nm and 800-1100 nm.
For the Polarizing Beamsplitter Cubes we also offer mounts (Article-No.: MTW) .
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