Circularly polarized light: (IMAGE) University of Utah Caption A schematic of circularly polarized light. Photons that move in unison along a spiral path, rather than a conventional wave pattern, produce circular polarized light. The light-emitting perovskite layer of the spin-LED device produces either left-handed or right-handed polarized light, depending the spin of the electrons that made it past the perovskite filter. Credit Dave3457 via Wikicommons Usage Restrictions Non commercial License Licensed content 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.