Microscopic metavehicles powered by nothing but light
Click here to watch a video of the metavehicles in action Researchers from Chalmers University of Technology, Sweden, have succeeded in creating tiny vehicles powered by nothing but light. By layering an optical metasurface onto a microscopic particle, and then using a light source to control it, they succeeded in moving the tiny vehicles in a variety of complex and precise ways – and even using them to transport other objects. Light has an inherent power to move microscopic objects – a property previously used to