Science Daily January 22, 2018
Researchers in at Northwestern University essentially input the behavior they wanted into a computer and the computer optimized a structure that has the required behavior and then it came out at the other end of a three-dimensional printer. They used computer modeling, optimization software, and complex algorithms to build metadevices that could bend or focus millimeter waves but that avoided problems with conventional approaches, such low efficiency, narrow bandwidth, and the bulkiness of the devices. The research could prove revolutionary for consumer products, defense, and telecommunications… read more. Open Access TECHNICAL ARTICLEÂ
Schematics for the inverse electromagnetic approach for designing free-space metadevices. The desired optical functionality is defined by a set of input and output conditions at the boundaries of the design space.