Polarcor™ is used as an optical element in polarization-dependent isolators, optical modulators, polarimetry systems, ellipsometers, shutters and other polarization-based devices. Polarcor is characterized by high extinction and low insertion loss throughout the 600 nm to 2300 nm wavelengths (depending on grade). Polarcor is a borosilicate glass that contains titanium, aluminum and silver. The polarizing mechanism is elongated silver crystals in the outer 20 µm ? 50 µm of the glass surface; this ensures the elimination of stray light, by absorbing the unwanted polarization. Since Polarcor is a solid glass product it is extremely resistant to chemical, physical and thermal damage, while exhibiting excellent optical properties.Information provided by Corning Incorporated. |