Making optical vortices with computer-generated holograms

作者：Alicia V. Carpentier, Humberto Michinel, José R. Salgueiro, David Nicholas Olivieri · 发表于：American Journal of Physics · 年份：2008 · DOI：10.1119/1.2955792 · 被引用次数：152 · 研究领域：Orbital Angular Momentum in Optics、Experimental and Theoretical Physics Studies、Digital Holography and Microscopy

An optical vortex is a screw dislocation in a light field that carries quantized orbital angular momentum and, due to cancellations of the twisting along the propagation axis, experiences zero intensity at its center. When viewed in a perpendicular plane along the propagation axis, the vortex appears as a dark region in the center surrounded by a bright concentric ring of light. We give detailed instructions for generating optical vortices and optical vortex structures by computer-generated holograms and describe various methods for manipulating the resulting structures.