Ultra-Thin Lenses That Make Infrared Light Visible
Physicists at ETH Zurich have developed an ultra-thin lens capable of converting infrared light into visible wavelengths. This breakthrough, achieved using lithium niobate metasurfaces, could revolutionize imaging technology by enabling compact, high-performance optical devices. How Metalenses Work Traditional lenses rely on curved glass to bend light toward a focal point, but metalenses use nanoscale structures ...
