Schematic and Graphene Grating (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Schematic illustration of the spectroscopy design with graphene grating: a) Electrochemical cell and spectroscopy configuration (Pt = Platinum); b) Optical microscopic image of a graphene grating on fused silica. Credit Feng Wang, Berkeley Lab 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.