'We now have a clear picture of how the hot atomic lattice and the cold magnetic spins of a ferrimagnetic insulator equilibrate with each other.' says Ilie Radu, scientist at the Max Born Institute Berlin. The international team of researchers discovered that energy transfer proceeds very quickly and leads to a novel state of matter in which the spins are hot but have not yet reduced their total magnetic moment.
Researchers have demonstrated nanomaterial-based white-light-emitting diodes (LEDs) that exhibit a record luminous efficiency of 105 lumens per watt.
A super compact interferometer developed by the lab of Chunlei Guo, professor of optics at the University of Rochester, will give scientists an unprecedented ability to fine tune even the quickest pulses of light for a host of applications, and could render traditional instruments for measuring light beams obsolete.
OIST-fabricated sensor detects tiny particles with field of bouncing light.
Tiny, nano-sized crystals of salt encoded with data using light from a laser could be the next data storage technology of choice, following research by Australian scientists.
Researchers from Sandia National Laboratories have developed a tiny silicon-based device that can harness what was previously called waste heat and turn it into DC power. Their advance was recently published in Physical Review Applied.
Chemists at Johannes Gutenberg University Mainz in Germany and at the Université de Montréal in Canada have developed a molecular system capable of very precise optical pressure measurements. The gemstone ruby served as the source of inspiration.
Scientists at Osaka University aligned two hexahelicenes in various orientations, theoretically examined, and proposed that S- and X-shaped double hexahelicenes aligned in right symmetry were a key to improve the properties of helicenes. The researchers then synthesized double hexahelicenes to demonstrate their improved chiroptical properties as chiral materials: circular dichroism and circularly polarized luminescence.
Researchers from Chalmers University of Technology, Sweden, and Tallinn University of Technology, Estonia, have demonstrated a 4,000 kilometer fiber-optical transmission link using ultra low-noise, phase-sensitive optical amplifiers. This is a reach improvement of almost six times what is possible when using conventional optical amplifiers. The results are published in Nature Communications.
How the zebrafish brain perceives and reacts to predators has been determined by researchers at the University of Queensland. School of Biomedical Sciences Associate Professor Ethan Scott said the processing of visual threats by the brain represented a really interesting puzzle in neuroscience.