University of Ottawa researchers have done some groundbreaking work on lenses, using nanotechnology to develop so-called metalenses that dramatically shrink down optics. But lenses still rely on space to produce images and the researchers have presented the concept of an optical “spaceplate” that propagates light for a distance much longer than the plate thickness, enabling future imaging systems to shrink even further. A spaceplate can be used to miniaturize all kinds of devices that manipulate light. “It’s a possibly revolutionary development in the field of optical science,” suggests photography and camera news site PetaPixel. Continue reading Researchers Use Nanotechnology to Shrink Optics for Devices

Researchers at Harvard University’s John A. Paulson School of Engineering and Applied Sciences (SEAS) made a breakthrough in metalenses, flat surfaces that focus light via nanostructures. Metalenses, which would replace curved lenses, have thus far been able to focus only on a limited spectrum of light, but SEAS engineers created a metalens that can focus, in high resolution, on the entire visible spectrum of light in the same spot. Previously, that effect could only be achieved by stacking many conventional lenses. Continue reading Harvard Metalens Research Could Impact AR/VR Applications