Superlens Side View (image) Duke University Caption This is a side view of the metamaterial "superlens." Both its width and thickness affects how far it can boost the wireless transfer of power using electromagnetic fields. Credit Courtesy of Duke University Usage Restrictions None 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.