Light emission (IMAGE) University of Ottawa Caption This image shows light emission, a process known as photoluminescence, form solid carbon which has formed on a silver nanostructure, illuminated by green light. Credit University of Ottawa, OSA Optica 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.