New ultrathin lens focuses light into an optical needle

Researchers have created a special flat lens that shapes light into an optical needle—a thin beam that stays tightly focused ...
IEEE

Checkerboard Constellation High-Resolution Imaging Method for Earth Observation Based on Optical Pupil Plane Interferometry and Phase Retrieval Algorithms

Abstract: High-resolution Earth observation, particularly from geostationary orbits (GEOs), requires the deployment of optical telescopes with apertures exceeding 10 m or more; however, a universally ...
Nature

Making samples one billion times bigger lets simple microscopes pinpoint amino acids

Stretching protein samples in all directions pulls molecules farther apart, allowing them to be visualized using only light ...

Shaping Luminescence in 3D: Advanced Fabrication of YAG:Ce³⁺ Microstructures

Researchers demonstrate a fabrication process of yttrium aluminum garnet doped with cerium 3D micro-objects, producing ...

As much as the Galaxy S26 Ultra annoys me, one camera feature keeps me coming back

The Samsung Galaxy S26 Ultra is far from a perfect Android phone. However, one of its camera features is the reason I can't quit it.
IEEE

High Spatial Resolution Raman Distributed Optical Fiber Sensing Using Self-Pulse Time-Domain Delay Differential Demodulation

Abstract: A primary problem in Raman distributed optical fiber sensing is balancing the sensing distance and spatial resolution. Owing to the optical time-domain reflection (OTDR) positioning ...