Polarizing Beamsplitter Cubes


With a special broadband beamsplitter coating on the hypotenuse and a corresponding AR coating on the four optical outer surfaces, these cubes are suited for universal applications and as part of a basic laboratory equipment. They separate the S and P polarization components by reflecting the S component at the beamsplitter coating, while allowing the P component to pass with an extinction ratio of Tp:Ts > 1000:1.

 

DSC 7127c
Reflection (S-polarized):    > 99.9%
Surface Quality:    S/D 20-10
Surface Flatness:    λ/10 (633 nm)
Wavefront Distortion:    λ/4 (633 nm)
Acceptance Angle:    +/- 2.5 deg.
Clear Aperture:    90%
Antireflection Coating:    R < 0.5% per surface
Damage Threshold:     
370-420 HP: 150 kW/cm² cw, 1 J/cm² 10ns
VIS-PBC:    
 
100 W/cm² cw, 10 mJ/cm² @ 10 ns
& 1.5 mJ/cm² 100 fs
VIS, NIR, IR-PBC:    2.5 kW/cm² cw, 0.2 J/cm² 10 ns,
  30 mJ/cm² 280 fs

 

Other cube dimensions and wavelengths on request

Part-No. Dimension Wavelength Extinction Ratio Transmission
(p-polarized)
Price €
PBC0.5"-370/420 HP 0.5" 370-420 nm > 1.000:1 96% 342,--
PBC1"-370/420 HP 1" 370-420 nm > 1.000:1 96% 420,--
PBC0.5"-450/650 0.5" 450-650 nm > 1.000:1 > 97% 170 ,--
PBC1"-450/650 1" 450-650 nm > 1.000:1 > 97% 212 ,--
PBC0.5"-600/900 0.5" 600-900 nm > 1.000:1 > 97% 170 ,--
PBC1"-600/900 1" 600-900 nm > 1.000:1 > 97% 212 ,--
PBC0.5"-750/1100 0.5" 750-1100 nm > 1.000:1 > 97% 184 ,--
PBC1"-750/1100 1" 750-1100 nm > 1.000:1 > 97% 230 ,--

 

bluePBC1
visPBC2

 

nirPBC3
irPBC4