Medicine & TechnologyResearchers from two universities developed an ultra-compact camera the size of a grain of salt that can produce images at par with conventional cameras but with the potential of being used in medicine.
In a study, researchers developed a new metasurface called "metalens" that uses extremely deep, very narrow holes, instead of extremely tall pillars to focus light into a single site.
Researchers from the Chalmers University of Technology created microscopic metavehicles that can be maneuvered using nothing but light. They succeeded in moving the metavehicles and transported other objects as well.