Nano Dipole Antennas Under the Microscope (IMAGE) Helmholtz Association Caption Pictured are nano dipole antennas under a microscope. The colors reflect the different transmission frequencies. Credit LTI 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.