Evaluation of a selection of commercial polarizers and retarders at visible and near-infrared wavelengths

Complete specification s for commercially available polarizers and retarders are often not available, incomplete, or inaccurate. We analyze several commercial polarization elements using Mueller matrix polarimetry. Elements are characterized in terms of their diattenuation, retardance, and depolarization. Measurements were made with laser polarimeters and a spectropolarimeter.