Electrically Contacted Optical Antenna (IMAGE) University of Würzburg Caption Artist's impression of an electrically contacted optical antenna (left) and the quantum mechanical distribution of its surface electrons. The normal distribution is shown in yellow, while the change induced by an applied voltage is shown in red. Credit Thorsten Feichtner / University of Wuerzburg Usage Restrictions none License Original 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.