Feature The y, ttrium orthovanadate (YVO4) is a positive uniaxial crystal grown with Czochralski method. It has good mechanical and physical properties and is ideal for optical polarizing components because of its wide transparency range and large birefringence. It is an excellent synthetic substitute for Calcite (CaCO3) and Rutile (TiO2) crystals in many applications including fiber optic isolators and circulators, beam displacers, Glan polarizers and other polarizing optics, etc. Specification Diameter:Max 25m Length:Max 35mm Surface Quality:better than 20/10 scratch/dig Beam Deviations 3 arc min Optical Axis Orientation:+/-0.2deg Flatness:<A/4 @632.8nm Wavefront Distortion:<A/2 @632.8nm Coating:Coating upon Request