An oscillation assisted digital light processing (DLP) based 3D printing approach is developed to enable ultrafast fabrication of microlens arrays with optically smooth surface (1 nm surface roughness) via a single 1-3 seconds exposure of grayscale UV light.
Read moreTungsten diselenide emits light with very special properties. Nobody could tell why — but now, scientists have solved the riddle: a combination of atomic defects in the material and microscopic distortion is responsible for the remarkable effect.
Read moreScientists use the plasmonic properties of gold nanoparticles to amplify light from molecules triggered by electrochemiluminescence. The work could help researchers analyze the active surfaces of catalysts and other materials at the nanoscale.
Read moreControlling the interactions between light and matter has been a long-standing ambition for scientists seeking to develop and advance numerous technologies that are fundamental to society. With the boom of nanotechnology in recent years, the nanoscale manipulation of light has become both, a promising pathway to continue this advancement, as well as a unique challenge due to new behaviors that appear when the dimensions of structures become comparable to the wavelength of light.
Read moreRecent advances in fluorescence microscopy allow researchers to study biological processes below the classical diffraction limit of light. Researchers have now developed DNA-PAINT, a variant of these so-called super-resolution approaches.
Read moreResearchers have explored the initial consequences of the interaction of light with molecules on the surface of nanoscopic aerosols.
Read moreEngineers have solved a 50-year-old puzzle in signal processing. They've formulated the 'inverse chirp z-transform,' an algorithm related to one that's running on your cell phone right now. It took some computing power and some math expertise to do it.
Read moreScientists have investigated a simple biomimetic light-harvesting system using advanced spectroscopy combined with a microfluidic platform. The double-walled nanotubes work very efficiently at low light intensities, while they are able to get rid of excess energy at high intensities. These properties are useful in the design of novel materials for the harvesting and transport of photon energy.
Read moreResearchers show that polystyrene, one of the world's most ubiquitous plastics, may degrade in decades or centuries when exposed to sunlight, rather than thousands of years as previously thought.
Read moreResearchers have used the method of single-particle spectroscopy to study electroluminescence in light-emitting devices. They discovered that efficient charge funneling between individual perovskite nanocrystals and the phenomenon of emission blinking are responsible for the low efficiencies of perovskite light-emitting devices.
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