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UrduResearch team presents a new type of particle accelerator
Tag: ELECTROMAGNETICS
Silicon chips combine light and ultrasound for better signal processing
The continued growth of wireless and cellular data traffic relies heavily on light waves. Microwave photonics is the field of technology that is dedicated to the distribution and processing of electrical information signals using optical means. Compared with traditional solutions…
New material could create ‘neurons’ and ‘synapses’ for new computers
Classic computers use binary values (0/1) to perform. By contrast, our brain cells can use more values to operate, making them more energy-efficient than computers. This is why scientists are interested in neuromorphic (brain-like) computing. Physicists from the University of…
Spintronics: Improving electronics with finer spin control
DGIST scientists have found a novel way to control magnetic spins in a localized space
‘Bite’ defects revealed in bottom-up graphene nanoribbons
Graphene nanoribbons (GNRs), narrow strips of single-layer graphene, have interesting physical, electrical, thermal, and optical properties because of the interplay between their crystal and electronic structures. These novel characteristics have pushed them to the forefront in the search for ways…
NUS engineers harvest WiFi signals to power small electronics
Researchers have devised a method, using spin-torque oscillators, to harness wireless signals and convert them into energy to power small electronics
Scientists to take a new step in the microelectronics’ development
Researchers developed a method to determine the electrochemical capacity.
New algorithm uses a hologram to control trapped ions
Researchers have discovered the most precise way to control individual ions using holographic optical engineering technology. The new technology uses the first known holographic optical engineering device to control trapped ion qubits. This technology promises to help create more precise…
The secret life of bee signals can communicate colony health
Recording the electrostatic energy of honeybee hives offers a ‘canary in the coalmine’ look into ecosystem threats and environmental conditions
Ultra-high field MRI detects differences in brain’s ‘hippocampus’
CLEVELAND–Using ultra-high field magnetic resonance imaging (MRI) to map the brains of people with Down syndrome (DS), researchers from Case Western Reserve University, Cleveland Clinic, University Hospitals and other institutions detected subtle differences in the structure and function of the…
Study could lead to production of more efficient optoelectronic devices
Resonant-tunneling diodes are used in high-frequency oscillators, wave emitters and detectors, logic gates, photodetectors, and optoelectronic circuits. The study was a collaboration between Brazilian and German researchers.
New tech builds ultralow-loss integrated photonic circuits
Encoding information into light, and transmitting it through optical fibers lies at the core of optical communications. With an incredibly low loss of 0.2 dB/km, optical fibers made from silica have laid the foundations of today’s global telecommunication networks and…
Water and quantum magnets share critical physics
In physics, things exist in “phases”, such as solid, liquid, gas. When something crosses from one phase to another, we talk about a “phase transition” – think about water boiling into steam, turning from liquid to gas. In our kitchens…
Researchers realize synthetic gauge fields in single optomechanical resonator
The research team led by Prof. GUO Guangcan and Dr. DONG Chunhua from the University of Science and Technology of China realized synthetic gauge fields in a single optomechanical resonator by controlling geometric phase with the multimode interaction in the…
Spin-to-charge conversion achieves 95% overall qubit readout fidelity
The team led by Professor DU Jiangfeng and Professor WANG Ya from the Chinese Academy of Sciences (CAS) Key Laboratory of Microscale Magnetic Resonance of the University of Science and Technology of China put forward an innovative spin-to-charge conversion method…
Search for strange Skyrmion phenomenon fails but finds stranger magnetic beaded necklace
Physicists on the hunt for a rarely seen magnetic spin texture have discovered another object that bears its hallmarks, hidden in the structure of ultra-thin magnetic films, that they have called an incommensurate spin crystal.
Electromagnetic fields of nanostructures visualized in 3D for the first time
Scientists from Graz, Austria, succeeded for the first time in visualizing temporal distortions of the atomic lattice on the surface of materials in three dimensions.
Standing out: Unusual magnetic transition in perovskite oxide can help boost spintronics
Transition metal perovskites oxides exhibit several desirable properties, including high-temperature superconductivity and electrocatalysis. Now, scientists at Tokyo Institute of Technology explore the structure and properties of a perovskite oxide, PbFeO3, in anticipation of the unusual charge distribution and exotic magnetic…
New model simulates the temperature rise of laser-heated skin
Researchers in Japan propose a new way of understanding temperature rise of laser-heated skin
The case of the cloudy filters: Solving the mystery of the degrading sunlight detectors
More than 150 years ago, the Sun blasted Earth with a massive cloud of hot charged particles. This plasma blob generated a magnetic storm on Earth that caused sparks to leap out of telegraph equipment and even started a few…
Exploring the nanoworld in 3D
On the nanometric scale (one billionth of a metre), materials can feature new properties. A French team together with an Austrian one recently took an important step forward by mapping one of these properties for the first time in 3D.…
Researchers harvest energy from radio waves to power wearable devices
From microwave ovens to Wi-Fi connections, the radio waves that permeate the environment are not just signals of energy consumed but are also sources of energy themselves. An international team of researchers, led by Huanyu “Larry” Cheng, Dorothy Quiggle Career…
Tuning in the noise? New electromagnetic circuit simulator visualizes radiation phenomena
Researchers develop highly accurate numerical method for electromagnetic noise that considers both conduction phenomena within conductors and radiation phenomena outside conductors that form electric circuits
Small robot swimmers that heal themselves from damage (video)
Living tissue can heal itself from many injuries, but giving similar abilities to artificial systems, such as robots, has been extremely challenging. Now, researchers reporting in ACS’ Nano Letters have developed small, swimming robots that can magnetically heal themselves on-the-fly…
Commencement of shortwave propagation simulator (HF-START) service
Demonstrating radio wave propagation paths between any two points based on real-time space weather information
Black hole shows magnetic fields surrounding it are strong enough to resist gravity
Wits University astrophysicists are the only two scientists on African continent that contributed to the study.
New results challenge leading theory in physics
When so-called beauty quarks are produced during the collision of high-energy proton beams in the Large Hadron Collider – the particle accelerator at CERN in Geneva – they decay almost immediately on the spot. Researchers of the Large Hadron Collider…
Scientists observe complex tunable magnetism in a topological material
Scientists at the U.S. Department of Energy’s Ames Laboratory have observed novel helical magnetic ordering in the topological compound EuIn2As2 which supports exotic electrical conduction tunable by a magnetic field. The discovery has significant implications for basic research into functional…
Expressing some doubts about android faces
Researchers at Osaka University study the expressiveness of android faces using motion capture cameras and identify ways in which they still lack the complexity of real human reactions, which may help guide future robot design
Diamond color centers for nonlinear photonics
Researchers at the University of Tsukuba use color center defects in diamonds to demonstrate second-order nonlinear optical effects, which may allow for extremely fast all-optical communication and computation devices.
Research finds surprising electron interaction in ‘magic-angle’ graphene
PROVIDENCE, R.I. [Brown University] — In 2018, physicists showed that something interesting happens when two sheets of the nanomaterial graphene are placed on top of each other. When one layer is rotated to a “magic angle” of around 1.1 degrees…
Teamwork makes light shine ever brighter
Combined energy sources return a burst of photons from plasmonic gold nanogaps
NTU Singapore scientists develop device to ‘communicate’ with plants using electrical signals
A team of scientists led by Nanyang Technological University, Singapore (NTU Singapore) has developed a device that can deliver electrical signals to and from plants, opening the door to new technologies that make use of plants. The NTU team developed…
Keeping it cool: New approach to thermal protection in outdoor wearable electronics
Scientists develop a radiative cooler that keeps wearable devices cool even under direct sunlight
Distinguished Lehigh researcher Zakya Kafafi elected to National Academy of Engineering
Kafafi’s ‘contributions to materials technologies for organic optoelectronics’ recognized with one of the highest honors given to engineers in the United States
Dean Sam H. Noh named 2020 ACM fellow
Sam H. Noh, Professor of Electrical and Computer Engineering and Dean of the Graduate School of Artificial Intelligence at UNIST, has been elected as a 2020 fellow of the Association for Computing Machinery (ACM), the world’s largest scientific and educational…
Shutting the nano-gate
Researchers at Osaka University create voltage-controlled nanopores that can trap particles as they try to pass through, which may lead to single-molecule sensors, along with cheaper and faster genomic sequencing
New perovskite LED emits a circularly polarized glow
Light-emitting diodes (LEDs) have revolutionized the displays industry. LEDs use electric current to produce visible light without the excess heat found in traditional light bulbs, a glow called electroluminescence. This breakthrough led to the eye-popping, high-definition viewing experience we’ve come…
Capturing all of light’s data in one snapshot
$7.5 million Department of Defense project to create a ‘super camera’
Hyperpolarized proton MRI used to observe metabolic processes in real time
New technique using nuclear spin hyperpolarization of hydrogen paves the way for further advances in the field of magnetic resonance imaging
Contactless high performance power transmission
Superconducting coils for contactless power transmission in the kilowatt range
Scientists develop new magnetic nanomaterial for ?ounterfeit money prevention
An international research team led by NUST MISIS has developed a new iron-cobalt-nickel nanocomposite with tunable magnetic properties. The nanocomposite could be used to protect money and securities from counterfeiting. The study was published in Nanomaterials . Presently, research on…
The secret of catalysts that increase fuel cell efficiency
Fuel cells, which are attracting attention as an eco-friendly energy source, obtain electricity and heat simultaneously through the reverse reaction of water electrolysis. Therefore, the catalyst that enhances the reaction efficiency is directly connected to the performance of the fuel…
The aurora’s very high altitude booster
A critical ingredient for auroras exists much higher in space than previously thought, according to new research in the journal Scientific Reports. The dazzling light displays in the polar night skies require an electric accelerator to propel charged particles down…
Combined technique using diamond probes for nanoscale imaging of magnetic vortex structure
Magnetometry exploiting color center defects in diamond probes and magneto-optic imaging found to complement each other; progress towards the creation of more effective data storage systems
New technique brings the study of molecular configuration into the microscopic domain
Researchers have developed a spectroscopic microscope to enable optical measurements of molecular conformations and orientations in biological samples. The novel measurement technique allows researchers to image biological samples at the microscopic level more quickly and accurately. The new instrument is…
Six research teams win Carbon Hub funding
Zero-emissions initiative aims to ‘move the needle, far and fast’
Taking 2D materials for a spin
Scientists at the University of Tsukuba and the Institute of High Pressure Physics fabricate a novel molybdenum disulfide transistor and create an image of the spins of the electrons passing through which may open the way for new spintronic computers
Magnetic whirls in confined spaces
Mobility of skyrmions in geometric structures depends on their arrangement
Heat-free optical switch would enable optical quantum computing chips
In a potential boost for quantum computing and communication, a European research collaboration reported a new method of controlling and manipulating single photons without generating heat. The solution makes it possible to integrate optical switches and single-photon detectors in a…