Designing Dirac vortex topological photonic crystal fibres
Optical fibres made of topological photonic crystals allow improved versatility and control across the modes and polarization of light they transmit. Compositionally, photonic crystals contain bandgaps to prevent the passage of light relative to spec.....»»
High-quality microwave signals generated from tiny photonic chip
In a new Nature study, Columbia Engineering researchers have built a photonic chip that is able to produce high-quality, ultra-low-noise microwave signals using only a single laser. The compact device—a chip so small, it could fit on a sharp pencil.....»»
Investigating variation of fine root vessel traits in topological order within and across tropical tree species
Anatomical and hydraulic traits can indirectly and directly measure the transport capacity of a root, respectively. Exploring variation in root traits along topological orders within species is key to understanding functional shifts along root archit.....»»
Suppliers are churning out innovative concepts for vehicle interiors
Suppliers are designing innovative seats, infotainment systems and other technologies for EV interiors to help automakers differentiate their models......»»
Molecular crystal motors move like microbes when exposed to light
At first glance, Rabih O. Al-Kaysi's molecular motors look like the microscopic worms you'd see in a drop of pond water. But these wriggling ribbons are not alive; they're devices made from crystallized molecules that perform coordinated movements wh.....»»
Revealing environmental exposure to liquid crystal monomers from digital displays
Liquid crystal monomers (LCMs) are synthetic organic chemicals used in manufacturing liquid crystal displays (LCDs) present in numerous digital electronic devices. As the use of digital electronics, such as computers and smartphones, becomes increasi.....»»
Photon-like electrons in a four-dimensional world discovered in a real material
Dirac electrons were predicted by P. Dirac and discovered by A. Geim, both of whom were awarded the Nobel Prize in Physics in 1933 and in 2010, respectively. Dirac electrons behave like photons rather than electrons, for they are considered to have n.....»»
Designing nanoparticles for pregnancy-safe treatments
Too often, the lack of clinical trials means that pregnant women suffer because available medications are prescribed off-label for them or not at all. A new study offers proof of concept for the important parameters to develop pregnancy-safe gene the.....»»
Optically trapped quantum droplets of light can bind together to form macroscopic complexes
Condensed matter systems and photonic technologies are regularly used by researchers to create microscale platforms that can simulate the complex dynamics of many interacting quantum particles in a more accessible setting. Some examples include ultra.....»»
Classifying quantum secrets: Pendulum experiment reveals insights into topological materials
A recent study conducted at Tel Aviv University has devised a large mechanical system that operates under dynamical rules akin to those found in quantum systems. The dynamics of quantum systems, composed of microscopic particles like atoms or electro.....»»
Designing a drone that uses adaptive invisibility: Towards autonomous sea-land-air cloaks
The idea of objects seamlessly disappearing, not just in controlled laboratory environments but also in real-world scenarios, has long captured the popular imagination. This concept epitomizes the trajectory of human civilization, from primitive camo.....»»
Team successfully synthesizes atomically precise metal nanoclusters
A research team has successfully synthesized a metal nanocluster and determined its crystal structure. Their study provides experimental evidence for understanding and designing nanoclusters with specific properties at the atomic level. Metal nanoclu.....»»
Researchers develop amphibian-inspired camouflage skin
Inspired by amphibians such as the wood frog, investigators designed and synthesized a new type of camouflage skin involving one-dimensional photonic crystal structures assembled in three-dimensional flexible gels......»»
Researchers use liquid crystals to control polarization inside laser-written waveguides
Researchers have developed a new way to control and manipulate optical signals by embedding a liquid crystal layer into waveguides created with direct laser writing. The new devices enable electro-optical control of polarization, which could open new.....»»
Researchers develop world-leading microwave photonics chip for high-speed signal processing
A research team led by Professor Wang Cheng from the Department of Electrical Engineering (EE) at City University of Hong Kong (CityUHK) has developed a world-leading microwave photonic chip that is capable of performing ultrafast analog electronic s.....»»
Leak backs up obvious news that Apple is designing 2nm processors
With chip manufacturer TSMC's 2 nanometer foundry technology nearly ready, a new — and obvious — leak says that Apple is already designing iPhone processors using it.TSMC processorsIt would be bigger news if Apple weren't working on 2nm designs......»»
Researchers offer theoretical description of topological water wave structures
Topological wave structures are wave patterns that exhibit specific topological properties, or in other words, properties that remain unvaried under smooth deformations of a physical system. These structures, such as vortices and skyrmions, have attr.....»»
Scientists discover exotic quantum interference effect in a topological insulator device
In a novel experiment, physicists have observed long range quantum coherence effects due to Aharonov-Bohm interference in a topological insulator-based device. This finding opens up a new realm of possibilities for the future development of topologic.....»»
Researchers develop new integration technique for efficient coupling of III-V and silicon
Researchers at the Hong Kong University of Science and Technology (HKUST) have developed a new integration technique for efficient integration of III-V compound semiconductor devices and silicon, paving the way for photonic integration at low cost, l.....»»
Study finds quantum state of a rotating superfluid can discharge in three ways
According to a recent study from the University of Helsinki, published in the journal Physical Review Letters, a vortex of a superfluid that has been quantized four times has three ways of dividing, depending on the temperature......»»
Aurora borealis dynamics suggest the polar vortex is breaking up again
The Space Climate Research Group at the University of Oulu, Finland has been studying the effects of energetic particle precipitation from space, more commonly known as the aurora borealis or Northern Lights, on winter weather variations for quite so.....»»