Illustration (IMAGE) Singapore University of Technology and Design Caption Illustration of the antimony trisulphide programmable metasurface and its reflection spectrum in multiple states. Credit SUTD Usage Restrictions Credit to SUTD 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.