Spaser with the Graphene Layer (IMAGE) Moscow Institute of Physics and Technology Caption Design of the spaser with the graphene layer is shown as a honeycomb lattice above the dielectric layer (blue). The spaser is optically pumped through the active (gain) medium shown in orange. Credit Spaser with the graphene layer 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.