A new type of flat, ultrathin lens designed to be free of chromatic aberrations has been developed by researchers in the US. The device has a variety of potential applications, from ultralight imaging ...

Physicists have developed a lens with 'magic' properties. Ultra-thin, it can transform infrared light into visible light by halving the wavelength of incident light. Lenses are the most widely used ...

We compare and contrast concave and convex lenses by drawing ray diagrams. In this Closer Look segment on Lenses, we compare and contrast concave and convex lenses by drawing ray diagrams and ...

Folded lens system Strategically positioned metasurfaces fold the light trajectory diagonally within a glass substrate, maintaining optical paths while significantly ...

Metasurfaces, whose optical properties are derived from a manufactured nanopatterend surface rather than just component shape or chemical composition, are attractive materials for several optical ...