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Polarizing Cubes for Medium Energy Applications

Polarizing Cubes for Medium Energy Applications

Substrate material


Wavelength range

440 – 1700 nm

Surface quality, S-D


Surface flatness, P-V

<λ/6 @ 632.8 nm

Beam deviation

<3 arcmin

Extinction ratio Tp/Ts


Transmission @ central wavelength

Tp>90%, >95%, >97%

Reflectance @ central wavelength

Rs>99%, >99.5%, >99.8%


Up to 0.3 J/cm2 @ 1064 nm, 10 ns, 100 Hz

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Polarizing beamsplitter cubes are easy-to-handle, high contrast and high extinction ratio polarizer that splits a randomly polarized beam into two orthogonal, linearly polarized components. Cement is used to bind the two prism halves that form the cube, so the laser damage threshold is limited.


  • Easy, deformation-free mounting
  • High extinction ratio in transmission: Ts/Tp > 200:1
  • No ghost reflections
  • Minimal beam displacement
  • Negligible absorption of reflected and transmitted beams
  • For collimated beams only
  • Input and output surfaces are AR-coated for specified wavelengths
  • Custom sizes are available on request

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