Glan-Thompson Polarizer

This type of polarizer is made of two cemented right angle prisms. The s-polarized extraordinary beam is transmitted while the ordinary beam is reflected. The prisms provide larger field of view than the Glan-Taylor type.

Material a-BBO or Calcite
Wavelength Range a-BBO: 200-3500 nm, Calcite: 350-2300 nm
Extinction Ratio Calcite:<5x10-5; a-BBO:<5x10-6
Diameter Tolerance ±0.10 mm
Parallelism <1 arc Min
Surface Quality 20/10
Beam Deviation < 3 arc minutes
Wavefront Distortion λ/4@632.8nm
Damage Threshold >200 MW/cm2
Coating MgF2
Mount Black anodized aluminum