04 Mar 2009 These polarizing beamsplitter cubes use a coating rather than birefringent materials to split S and P polarization with a 90-Deg deviation over 700-1100nm. Substrate: BK7 Optical Glass
Design Wavelength: 700-1100nm
Wavefront Distortion: Lambda/4 at 633nm typ.
Surface Quality: 20-10 Scratch and Dig
Dimensions: 25.4mm x 25.4mm x 25.4mm
Dimension Tolerance: +/-0.1mm
Extinction Ratio: Tp:Ts > 500:1
Transmission Efficiency: Tp > 96%
Reflection Efficiency: Rs > 99%
Reflected Beam Deviation: 90 Deg +/-5 arc min
Anti-Reflection Coating: R < 0.25%
Clear Aperture: > 85% of dimension
Damage Threshold: 100mJ/cm2, 8nsec pulse; 100W/cm2, CW at 515nm typ.
http://www.optics.com.sg/Optical+Beamsplitters-Polarization+Beamsplitter+Cube.html | 
