Grating on Microscopic Slides (IMAGE) University of Missouri-Columbia Caption This diagram shows the difference between regular and plasmonic gratings in terms of fluorescent intensity. Credit Photo courtesy of Shubhra Gangopadhyay/Nanoscale. 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.