Rochon polarizers separate incident beam into ordinary ray and extraordinary ray like wollaston polarizer, but extraordinary ray is straight transmitted through, while ordinary is transmitted with a deviation angle.

General Specifications

Material                               α-BBO, YVO4
Extinction ratio                  5x105 : 1
Angle field                           >6.9°
Beam deviation                3 arcmin
Dimension tolerance       ±0.1mm
Surface quality                 20-10 S/D
Clear aperture                  >90%
Coating on both sides      Single layer MgF2 coating