Yulin Chen, University of Oxford (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Yulin Chen was a physicist with Berkeley Lab's Advanced Light Source (ALS) at the time of this study and is now with the University of Oxford. Credit Photo courtesy of Yulin Chen 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.