A pattern of distorted lines is visible as a reflection in this close-up view of a human eye. By observing the deformation of ...

The emergence of imaging schemes capable of overcoming Abbe's diffraction barrier is revolutionizing optical microscopy. In 1873, the German physicist Ernst Abbe realized that the resolution of ...

Conventional curved lenses, which direct light by refraction in glass or plastic, are often bulky and heavy, offering only ...

Ultrafast electron imaging reveals never-before-seen nuclear motions in hydrocarbon molecules triggered by light. The ...

What is the Diffraction Limit? The diffraction limit is a fundamental barrier in optical microscopy that sets the minimum size of features that can be resolved using conventional light microscopes. It ...

Argonne scientists have unveiled new methods for controlling material properties. The breakthrough enables researchers to ...

Usually, the efficiency of diffraction gratings decreases sharply as the angle of incidence of the light increases. The meta-grating developed at KIT is four times more efficient than conventional ...

In two recent studies published in Nature Communications and Science Advances, Antonio Ambrosio and his team at the Center for Nano Science and Technology (CNST) at IIT Milan introduced a new ...

Electron diffraction is a powerful analytical technique used to study the atomic structure of materials. It involves the interaction of a beam of electrons with a crystalline sample, resulting in a ...

Marmota Ltd’s first scans of samples from its SA mineral sands discovery have shown an average of 79 per cent and up to 90 ...

More information: Zetao Fan et al, Planar device–enabled speckle illumination for dark-field label-free imaging beyond the diffraction limit, Proceedings of the National Academy of Sciences (2025).