![illustration of a vortex ring of light](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2022/06/060722_ec_lightsmokering_feat.jpg?fit=1030%2C580&ssl=1)
Scientists have created vortex rings of light. The ring’s surface is illustrated in transparent purple and a hollow core is shown in orange. Rainbow arrows show the rotation of the vortex, and white arrows indicate a type of angular momentum of the light.
Chenhao Wan and Qiwen Zhan/University of Shanghai for Science and Technology