HOLO/OR Diffractive Vortex Phase Plates are diffractive optical elements (DOE) that convert an input beam from a Gaussian profile to a donut-shaped energy ring. These optical elements are composed of spiral-phase steps, the pattern of which controlling the phase of the transmitted beam. An optical lens can be used to focus the generated energy ring while maintaining the beam profile. HOLO/OR Diffractive Vortex Phase Plates are designed to work with collimated single mode (TEM00) Gaussian input beams, converting them to a TEM01 axially symmetric mode. These phase plates are available with designs for 532nm Nd:YAG lasers and 1030nm Yb:YAG lasers. Typical applications include solar coronagraphs, astronomy, high resolution microscopy, laser welding, optical tweezers, and quantum optics.
Note: Diffractive optical elements are not intended for use outside of their design wavelength. Diffractive optical elements will have decreased performance if their surfaces become dirty from oil or other substances. It is recommended to always use gloves or finger cots when handling these optics.
Edmund Optics offers a range of diffractive optical elements from HOLO/OR for laser applications, including: