Researchers have developed a light-based technique for measuring very weak magnetic fields, such as those produced when neurons fire in the brain.
Quantum jumps are usually regarded to be instantaneous. However, new measurement methods are so precise that it has now become possible to observe such a process and to measure its duration precisely -- for example the famous 'photoelectric effect', first described by Albert Einstein.
In research that may help bridge the divide between the nano and the macro, Brown University chemists have used pyramid-shaped nanoparticles to create what might be the most complex macroscale superstructure ever assembled.
It provides the basis for solar energy and global communications: the photoelectric effect. Albert Einstein described it over a century ago. For the first time, scientists from the Technical University of Munich (TUM), the Max-Planck Institute of Quantum Optics (MPQ), and the TU Wien have now measured the absolute duration of the light absorption and of the resulting photoelectron which is released from a solid body.
researchers from the National Institute of Standards and Technology (NIST) have been developing a laser power sensor that could be built into manufacturing devices for real-time measurements in many manufacturing processes, from welding car parts to crafting engine components with 3D printers.
When light pulses from an extremely powerful laser system are fired onto material samples, the electric field of the light rips the electrons off the atomic nuclei. A plasma is created. The electrons couple with the laser light in the process. When flying out of the target, they pull the atomic cores behind them. In order to experimentally investigate this complex acceleration process, researchers from the German Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have developed a novel type of diagnostics for innovative laser-based particle accelerators.
A new discovery of a light-induced super photobase at Michigan State University is revealing some of photosynthesis' desirable traits. The interdisciplinary team of scientists was able to document the ultrafast dynamics of the super photobase that is 10 million times stronger than anything previously discovered.
By creating a new twist on fiber optic sensors, researchers in China have developed a smart, flexible photoacoustic imaging technique that may have potential applications in wearable devices, instrumentation and medical diagnostics.
Covert sensing of objects around a corner may soon become a reality. Aristide Dogariu, a University of Central Florida Pegasus Professor of Optics and Photonics, and his colleagues published a paper in Nature Communications this month demonstrating how to passively sense an object even when direct vision is impeded.
New four-year study data shows the significant impact of a pioneering contact lens management approach to slowing the progression of myopia (nearsightedness) in children, including those whose treatment begins later. CooperVision is presenting the latest outcomes during the BCLA Asia conference in Singapore this week, at which the globally increasing prevalence of myopia is among the most widely discussed issues.