Metamolecules that Switch Chirality (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption The top shows a scanning electron microscopy image of optically switchable chiral THz metamolecules. The bottom shows the purple, blue and tan colors represent the gold meta-atom structures at different layers, with the two silicon pads shown in green. Credit Courtesy of Xiang Zhang, et. al Usage Restrictions Credit required 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.