10X10mm Vortex Phase Plate/Spiral Phase Plate

A vortex phase plate is a pure phase diffraction optical element whose optical thickness is proportional to the rotation azimuth angle. The incident plane wave passes through the vortex phase plate and the outgoing beam has a vortex phase wavefront. As a new type of diffractive optical element, vortex phase plate has been practically applied in many fields such as optical information processing, optical micro manipulation, biomedical, morphology measurement, astronomical observation, etc. At present, research on vortex phase plates has developed into an important field of modern optics.