Chip with Asymmetric Plasmonic Antennas (IMAGE) Technical University of Munich (TUM) Caption This is an electronmicroscopic image of the chip with asymmetric plasmonic antennas made from gold on sapphire. Credit A. Holleitner / TUM 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.