FIG 1 (IMAGE) Compuscript Ltd Caption Fig. 1 | Schematic diagram of design concept for structured light beams. (a) The phase distribution at the input plane, (b) spatial transmission trace of cylindrical helical path, (c) polarization distributions on the incident plane, (d) the polarization states corresponding to different propagation distances z on the Poincaré sphere for linear longitudinal polarization variations, (e) polarization distributions on the incident plane, (f) the polarization states corresponding to different propagation distances z on the Poincaré sphere for nonlinear longitudinal polarization variations. Credit OES Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.