Controlling Light With Plasmon Waves (1 of 2) (image) American Association for the Advancement of Science Share Print E-Mail Caption Circularly polarized dipole over a metal surface, exciting surface plasmons unidirectionally. The height of the metal surface represents the surface charge density. This image relates to a paper that appeared in the April 19, 2013, issue of Science, published by AAAS. The paper, by Francisco Rodríguez-Fortuño at King's College London in London, UK, and colleagues was titled, "Near-Field Interference for the Unidirectional Excitation of Electromagnetic Guided Modes." Credit [Image courtesy of Francisco J. Rodríguez-Fortuño] Usage Restrictions Please cite the owner of the image when publishing. This image may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. 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.