Tunable "metasurface" is akin to optical swiss army knife
MIT engineers and colleagues report important new advances on a tunable metasurface, or flat optical device patterned with nanoscale structures, that they compare to a Swiss army knife while its passive predecessor can be thought of as just one tool,.....»»
Spectral evidence found for Dirac spinons in a kagome lattice antiferromagnet
A new study, published in a recent issue of Nature Physics, sheds light on the long-anticipated emergence of quasiparticles, akin to the famous Dirac particles obeying the relativistic Dirac equation. These quasiparticles, known as Dirac spinons, wer.....»»
Optical power evolution in fiber-optic networks: New framework for better modeling and control
With the emergence of internet services such as AI-generated content and virtual reality, the demand for global capacity has surged, significantly intensifying pressures on fiber-optic communication systems. To address this surge and reduce operation.....»»
Parity-time symmetry: Unlocking faster and stronger optical signal processing
In the era of big data, signal processing faces significant challenges in terms of capacity and energy consumption due to the torrent of data to process. With over 90% of data transmitted through light, optical signal processing may offer unprecedent.....»»
Iceland"s "Mammoth" raises potential for carbon capture
With Mammoth's 72 industrial fans, Swiss start-up Climeworks intends to suck 36,000 tonnes of CO2 from the air annually to bury underground, vying to prove the technology has a place in the fight against global warming......»»
Researchers demonstrate low-loss and polarization-independent integrated optical colorless ROADM
The implementation of integrated optical switches shows promise in the size reduction of ROADMs for greater flexibility and compactness, ultimately leading to robust single-chip solutions. Despite decades of research on switches with various structur.....»»
Researchers harness blurred light to 3D-print high-quality optical components
Canadian researchers have developed a new 3D printing method called blurred tomography that can rapidly produce microlenses with commercial-level optical quality. The new method may make it easier and faster to design and fabricate a variety of optic.....»»
Researchers discover optimal conditions for mass production of ultraviolet holograms
Researchers have delved into the composition of nanocomposites for ultraviolet metasurface fabrication and determined the ideal printing material for crafting them. Their findings are featured in the journal Microsystems & Nanoengineering on April 22.....»»
Scientists create black arsenic visible infrared photodetectors
In recent years, the exceptional structure and fascinating electrical and optical properties of two-dimensional (2D) layered crystals have attracted widespread attention. Examples of such crystals include graphene, black phosphorus (BP), and transiti.....»»
Rising knife crime in London is linked to austerity cuts to youth services—here"s the evidence
New data released by the Office of National Statistics (ONS) shows knife and gun crime in London rose sharply in the 12 months before December 2023......»»
Materials scientists reveal pathway for designing optical materials with specialized properties
While we usually think of disorder as a bad thing, a team of materials science researchers led by Rohan Mishra, from Washington University in St. Louis, and Jayakanth Ravichandran, from the University of Southern California, have revealed that—when.....»»
Little-known self-driving startup raises $1 billion from Nvidia, Microsoft, SoftBank
Wayve is a UK startup with an AI-focused approach to solving autonomy for cars. It's akin to a vehicular version of ChatGPT......»»
Tweaking isotopes sheds light on promising approach to engineer semiconductors
Research led by scientists at the Department of Energy's Oak Ridge National Laboratory has demonstrated that small changes in the isotopic content of thin semiconductor materials can influence their optical and electronic properties, possibly opening.....»»
Physicists create an optical tweezer array of individual polyatomic molecules for the first time
A team of physicists at Harvard University has succeeded in trapping individual polyatomic molecules in optical tweezer arrays for the first time. In their paper published in the journal Nature, the group describes how they achieved their feat and th.....»»
Researcher creates optical magnetometer prototype that detects errors in MRI scans
Hvidovre Hospital has the world's first prototype of a sensor capable of detecting errors in MRI scans using laser light and gas. The new sensor, developed by a young researcher at the University of Copenhagen and Hvidovre Hospital, can thereby do wh.....»»
Fluidic telescope (FLUTE): Enabling the next generation of large space observatories
The future of space-based UV/optical/IR astronomy requires ever larger telescopes. The highest priority astrophysics targets, including Earth-like exoplanets, first generation stars, and early galaxies, are all extremely faint, which presents an ongo.....»»
Is Manor Lords multiplayer or co-op?
Do you want to pit your growing army against a friend's or work together in Manor Lords? we'll let you know if the game supports multiplayer and co-op or not......»»
Optical barcodes expand range of high-resolution sensor
The same geometric quirk that lets visitors murmur messages around the circular dome of the whispering gallery at St. Paul's Cathedral in London or across St. Louis Union Station's whispering arch also enables the construction of high-resolution opti.....»»
NASA"s Deep Space Optical Communications demonstration transmits data over 140 million miles
Riding aboard NASA's Psyche spacecraft, the agency's Deep Space Optical Communications technology demonstration continues to break records. While the asteroid-bound spacecraft doesn't rely on optical communications to send data, the new technology ha.....»»
Sugar in baby food: Why Nestlé needs to be held to account in Africa
Nestlé has been criticized for adding sugar and honey to infant milk and cereal products sold in many poorer countries. The Swiss food giant controls 20% of the baby-food market, valued at nearly US$70 billion......»»
Norway women bring seaweed to culinary heights in Europe
In the glacial waters of the Lofoten archipelago in Norway's far north, Angelita Eriksen uses a knife to cut a handful of seaweed that will soon end up in a fancy European eatery......»»