A newly-fabricated metalens shifts focus without tilting, shifting, or otherwise moving. The design may enable miniature zoom lenses for drones, cellphones, or night-vision goggles. Polished glass has ...

Cameras have been around for a very long time and have used polished glass for lenses for almost as long as they have been around. In a polished glass lens, a precise curvature allows the lens to ...

A flat, lightweight 10 cm optical device is the largest metalens ever made. Like conventional lenses, metalenses focus light from distant objects. But they are much thinner and lighter. Scientists say ...

An ultrathin dielectric metalens has been created that improves focusing capabilities but can also be scaled down to a tiny size for integration with photonics equipment. A metalens uses a metasurface ...

(Nanowerk News) Metasurfaces are nanoscale structures that interact with light. Today, most metasurfaces use monolith-like nanopillars to focus, shape and control light. The taller the nanopillar, the ...

(Nanowerk News) Polished glass has been at the center of imaging systems for centuries. Their precise curvature enables lenses to focus light and produce sharp images, whether the object in view is a ...

Researchers developed a metasurface that uses very deep, very narrow holes, rather than very tall pillars, to focus light to a single spot. Metasurfaces are nanoscale structures that interact with ...