MEMS image (IMAGE) Optica Caption This photograph shows two MEMS elements on a single chip, with the active elements of 250 μm × 250 μm. A micrograph (top inset) the actual size of the diffractive element, as compared to a section of human hair (bottom inset). Credit Jin Wang 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.