Knotted Light (2 of 2) (IMAGE) University of Bristol Caption The colored circle represents the hologram, out of which the knotted optical vortex is emerging. Credit Mark Dennis Usage Restrictions Only to be used in conjunction with this article. 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.