Beamsplitter Cubes

Beamsplitter Cubes/Drawing(1k)

The beamsplitter cubes are made of right angle prisms (crown glass BK 7) for a variety of spectral ranges.
The splitting layer is metallic (silver); the splitting ratio is 45:45% (± 5%) for average polarization.  The splitting layer slightly polarizes the splitted light: the transmission of the p-polarized component is about 5 to 15% higher than that of the s-component. The outer surfaces are broadband multilayer antireflection coated.
The surface accuracies of the right angle prisms are λ/10; the deformation of a transmitted wave is dependent of the homogeneity of the glass and often meets the quality of the surfaces. The prismatic deviation is not larger than about 1'.

Cube Wavelength Range
Size 400 - 700 nm 600 - 900 nm
Ordernr. Price 1 pc. Price 2-5 pc. Price 6-10 pc. Ordernr. Price 1 pc. Price 2-5 pc. Price 6-10 pc.
10 mm
15 mm
20 mm
25 mm
30 mm
40 mm
TWK 10
TWK 15
TWK 20
TWK 25
TWK 30
TWK 40
€ 162
€ 211
€ 315
€ 390
€ 578
€ 693
€ 147
€ 197
€ 299
€ 367
€ 543
€ 651
€ 128
€ 179
€ 279
€ 341
€ 504
€ 604
TWK 1.10
TWK 1.15
TWK 1.20
TWK 1.25
TWK 1.30
TWK 1.40
€ 162
€ 211
€ 315
€ 390
€ 578
€ 693
€ 147
€ 197
€ 299
€ 367
€ 543
€ 651
€ 128
€ 179
€ 279
€ 341
€ 504
€ 604

Accesoriesto top

The cylindrical mounts holders described at Polarizing Beamsplitter Cubes are suited for beamsplitters of sizes between 10 mm and 25 mm.

Available on special orderto top

  • Beamsplitter cubes with dielectric absorption-free splitting layer for one specified wavelength or a narrow wavelength range. → on request
  • Beamsplitter cubes of fused silica for use in UV or in mid-range IR. → on request
  • Beamsplitter cubes of raw glass with specified homogenities. → on request
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