Phys.org  May 22, 2019 Metasurfaces etched with individual features can create patterns that enable the surface to scatter light very precisely if the exact pattern needed to produce a desired optical effect is known. A team of researchers in the US (MIT, Harvard) has developed a computational technique that can quickly map out patterns for a range of desired optical effects. Instead of having to solve Maxwell’s equations for every single nanometer-sized pixel in a square centimeter of material, the researchers solved these equations for pixel “patches.” Using their technique, the researchers quickly came up with optical patterns for several […]