Authors: Gianluca Ruffato
Published: 2021-05-06
DOI: 10.1038/s41377-021-00541-6
Source: Full article
AbstractAnalogous to the behavior of a common converging lens for the input of tilted waves, a recent publication suggests a new optical element with an azimuthal-quadratic phase profile for the focusing of orbital angular momentum beams at distinct angular positions. Its realization in a metasurface form enables the combined measurement of orbital and spin angular momentum using a single optical component.