Nanowerk  June 3, 2024 The ability to detect and image short-wave infrared light has important applications in surveillance, autonomous navigation, and biological imaging. However, the current infrared imaging technologies often pose challenges due to large footprint, large thermal noise and inability to augment infrared and visible imaging. An international team of researchers (Australia, Germany) demonstrated infrared imaging by nonlinear up-conversion to the visible in an ultra-compact, high-quality-factor lithium niobate resonant metasurface. Despite the strong nonlocality of the metasurface they obtained images with high conversion efficiency and resolution quality. They showed the possibility of edge-detection image processing augmented with direct up-conversion […]