Nonreciprocal Light (IMAGE) University of California - San Diego Caption This image was captured using UC San Diego Jacobs School of Engineering's unique capacity for near-field imaging and heterodyne interferometry shows that waveguide device built by Caltech-UCSD team prevents backscattered light from interfering in the operations of a photonic silicon chip. Credit Caltech-UC San Diego research team Usage Restrictions None 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.