Materials: Calcite, a-BBO or YVO4 crystal.
Air-spaced structure.
Crystals cut at close to Brewster angle to minimize loss
High extinction ratio ( > 100,000:1 ) over an extremely
  large range of wavelength.
Minimal beam displacement and angular deviation for
  the transmitted beam.
Mounted with escape windows for high power
  application.

Glan Laser Polarizer Specifications

Wavelength Range: 200-2500nm (α-BBO)
                           350-2300nm (Calcite)
                           500-4000nm (YVO4)
Surface Quality: 20-10 scratch and dig
Wavefront Distortion: < λ/4 @632.8nm
Dimensions Tolerance: +/- 0.1 mm
Beam Deviation: < 3 arc minutes
Coatings: Single layer MgF2 on input/output surfaces
         ( Multilayer AR coating available upon request )
Housing: Black anodized aluminum

Structure and beam polarization

Wavelength Range(nm)

Extinction
Ratio

Angular
Field (o)

Aperture φ(mm)

>6.0