Polarizing Cube Beamsplitter

Polarizing cube beamsplitters split randomly polarized beams into two orthogonal, linearly polarized components: S-polarized light is reflected at a 90 deg angle while P-polarized light is transmitted. Each beamsplitter consists of a pair of precision high tolerance right angle prisms cemented together with a dielectric coating on the hypotenuse of one of the prisms. A multi-layer antireflective coating has been applied to each face of the beamsplitter in order to produce maximum transmission efficiency.

Capability

Material:	BK7, grade A fine annealed
Design wavelength:
Clear aperture:	90%
Dimension tolerance:	+/-0.1mm
Angle tolerance:	+/- 3 arc minutes
Surface quality:	60-40
Surface accuracy:	lambda/4
AR coating:	R < 0.25% per surface @ 632.8nm
Transmission:	Tp > 95% @ 632.8nm
Reflection:	Rs > 99.5% @ 632.8nm
Extinction Ratio:	Tp / Ts > 100: 1 @ 632.80nm
Bevel:

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