Configurable topological beam splitting via antichiral gyromagnetic photonic crystal
Topological insulators, whose bulky states are prohibited while surface/edge states are conductive and topologically protected. Recent advances in topologically protected edge states have drawn growing attention in the optics and photonics community......»»
Digital ops and ops management security predictions for 2024
CISOs don’t need a crystal ball – they already know that 2024 will be another tough year, especially with AI at everyone’s mind. Instead of playing catch-up regarding the security of emerging tech like generative AI, organizations will prio.....»»
Embedding nanodiamonds in polymer can advance quantum computing and biological studies
A nitrogen-vacancy (NV) center is a defect in the crystal structure of diamond, where a nitrogen atom replaces a carbon atom in the diamond lattice and a neighboring site in the lattice is vacant. This and other fluorescent defects in diamond, known.....»»
Crystal language empowers AI to design novel materials with desired properties
Over the past decade, generative deep learning models have been applied successfully to the design of novel drug molecules, organic synthesis routes, and functional molecules tailored for electronic/optoelectronic devices. This is largely enabled by.....»»
Discovery of magnetic liquid crystal: First direct observation of spin quadrupole moments in a spin-nematic phase
Liquid crystal is a state of matter that exhibits properties of both liquid and solid. It can flow like a liquid, while its constituent molecules are aligned as in a solid. Liquid crystal is widely used nowadays, for example, as a core element of LCD.....»»
A nanoprobe with a barcode: Sensors detect active proteases
Protein-splitting enzymes play an important role in many physiological processes. Such proteases are generally present in an inactive state, only becoming activated under certain conditions. Some are linked to diseases like infections or cancer, maki.....»»
A scheme for realizing nonreciprocal interlayer coupling in bilayer topological systems
The exchange of energy and environment is inevitable in any physical system, so non-Hermitian systems that can be described by non-Hermitian Hamiltonians are ubiquitous. There are two kinds of non-Hermitian Hamiltonians, describing nonreciprocal syst.....»»
Fractal photonic anomalous Floquet topological insulators to generate multiple quantum chiral edge states
An anomalous Floquet topological insulator (AFTI) is a periodically driven topological insulator (TI with nonzero winding numbers to support topological edge modes, though its standard topological invariants like Chern numbers are zero......»»
Study shows precise control of colloids through magnetism is possible
Bayreuth researchers have found ways to control tiny particles in liquids using magnetic patterns. The research results have now been published in Nature Communications under the title "Simultaneous and independent topological control of identical mi.....»»
Luttinger"s theorem at the core of topological matter
In 1960, Joaquin Luttinger introduced a universal statement that relates the total number of particles that a system can accommodate to its behavior under low-energy excitations. While Luttinger's theorem is readily verified in systems of independent.....»»
Researchers show excited electrons straightening the skewed lattice of perovskite nanocrystals
Researchers from ETH Zurich, Empa and Stanford have taken snapshots of the crystal structure of perovskite nanocrystals as it was deformed by excited electrons. To their surprise, the deformation straightened out the skewed crystal structure rather t.....»»
Photonic chip that "fits together like Lego" opens door to semiconductor industry
Researchers at the University of Sydney Nano Institute have invented a compact silicon semiconductor chip that integrates electronics with photonic, or light, components. The new technology significantly expands radio-frequency (RF) bandwidth and the.....»»
Study unveils shape-configurable MXene-based thermoacoustic loudspeakers with tunable sound directivity
Recent research has led to the development of film-type shape-configurable speakers. These speakers, based on the unique properties of MXene, offer tunable sound directivity and hold immense promise for the rapidly growing field of wearable electroni.....»»
Engineering non-precious metal electrocatalysts for cost-effective and environmentally responsible water splitting
There is an ever-present struggle to reduce carbon-based energy sources and replace them with low or no-carbon alternatives. The process of splitting water could be the resolution......»»
Researchers develop a new approach to polarization-independent LC phase modulation
Liquid-crystal (LC) phase modulators are widely used in optical systems because of their advantages of low power consumption, lightweight, flexible bandwidth adjustment, and non-mechanical movements. However, most LC phase modulators are polarization.....»»
Two-photon lithography for photonic packaging: A promising solution
Photonic integrated circuits (PICs) are compact devices that combine multiple optical components on a single chip. They have a wide range of applications in communications, ranging, sensing, computing, spectroscopy, and quantum technology. PICs are n.....»»
Study finds more stable clocks could measure quantum phenomena, including the presence of dark matter
The practice of keeping time hinges on stable oscillations. In a grandfather clock, the length of a second is marked by a single swing of the pendulum. In a digital watch, the vibrations of a quartz crystal mark much smaller fractions of time. And in.....»»
Google’s DeepMind finds 2.2M crystal structures in materials science win
Trove of combos is >45 times larger than number unearthed in entire history of science. Enlarge / The researchers identified novel materials by using machine learning to first generate candidate structures and then gauge their li.....»»
Photonic chips can calculate optimal shape of light for next-gen wireless systems
Optical wireless may no longer have any obstacles. A study by Politecnico di Milano, conducted together with Scuola Superiore Sant'Anna in Pisa, the University of Glasgow and Stanford University, and published in Nature Photonics, has made it possibl.....»»
Researchers achieve quantum storage of entangled photons at telecom wavelengths in a crystal
Quantum technologies are currently maturing at a breath-taking pace. These technologies exploit principles of quantum mechanics in suitably engineered systems, with bright prospects such as boosting computational efficiencies or communication securit.....»»
Tapered fiber is a potential candidate for delivering high-energy, ultrafast lasers with high beam quality
Ultrafast lasers have the advantages of high time resolution, high energy density, broadband spectrum, etc. Ultrafast lasers with high-energy and high peak power have been widely applied in industrial fields and frontier science, such as advanced man.....»»