Schematic of Active Metamaterial (image) City College of New York Share Print E-Mail Caption This is a schematic of active metamaterial which shows enhanced light emission and extraction. Credit Image by Tal Galfsky. Usage Restrictions None Share Print E-Mail 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.