High-performance, ultracompact lenses are needed in the quest to miniaturize optical systems. It now seems that carefully engineered subwavelength gratings can function as almost perfect mirrors ...

Physicists at ETH Zurich have developed a lens that can transform infrared light into visible light by halving the wavelength of incident light. The study is published in Advanced Materials.

Conical in shape Fresnel zone (CFZ) lens of flat dielectric rings is introduced and studied in this research. It is contrasted to a plane Fresnel zone (PFZ) lens, a CFZ lens of conical rings and a ...

We report a novel process to directly inscribe a Fresnel zone plate (FZP) lens on the cleaved facet of a hard clad polymer fiber using a femtosecond pulsed laser. The FZPs are designed by adopting ...

If you've been intrigued by virtual reality for a while, there are a number of solid headsets to consider. These are the best VR headsets we've tested and reviewed.

The Technology Behind Infrared Vision The lenses incorporate upconversion nanoparticles that absorb near-infrared light (800–1600 nm) and transform it into visible light. These nanoparticles are ...

HEFEI -- An international team led by Chinese scientists has developed revolutionary contact lenses that allow humans to see near-infrared light, a breakthrough that could transform medical imaging ...

Sony has announced a newly developed IR cut filter that is claimed to improve color reproduction when using the BURANO under strong lighting conditions, including sunlight. The filter replacement will ...

RETURN TO ISSUE PREV Research Article NEXT Large-Scale Nanofabrication of Designed Nanostructures Using Angled Nanospherical-Lens Lithography for Surface Enhanced Infrared Absorption Spectroscopy ...