The 5524 VIS Glan-Thompson Polarizer is built into a rotation stage, which easily mounts into standard 1.0 in. diameter mirror mounts or rotary stages. At the interface between two calcite prisms, total internal reflection takes place for one polarization state while the other is transmitted. This proven Glan-Thompson design yields extinction ratios greater than 100,000:1 over a wide range of angles and for a broad spectral range. The 5524 is AR coated for use from 400-700 nm.