Metamaterial Current Events

Metamaterial Current Events, Metamaterial News Articles.
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New metamaterial manipulates sound to improve acoustic imaging
Researchers have developed a metamaterial made of paper and aluminum that can manipulate acoustic waves to more than double the resolution of acoustic imaging, focus acoustic waves, and control the angles at which sound passes through the metamaterial. Acoustic imaging tools are used in both medical diagnostics and in testing the structural integrity of everything from airplanes to bridges. (2015-12-16)

New metamaterial can switch from hard to soft -- and back again
When a material is made, you typically cannot change whether that material is hard or soft. But a group of University of Michigan researchers have developed a new way to design a 'metamaterial' that allows the material to switch between being hard and soft without damaging or altering the material itself. (2017-01-23)

Ultrafast tunable semiconductor metamaterial created
An international team of researchers has devised an ultrafast tunable metamaterial based on gallium arsenide nanoparticles, as published by Nature Communications. The new optical metamaterial paves the way to ultrafast information transfer on the nanoscale. (2017-05-17)

New metamaterial proves to be a 'perfect' absorber of light
Boston College and Duke University researchers have engineered a new metamaterial that uses its unique geometric surface features to (2008-05-29)

Nanomaterial to drive new generation of solar cells: ANU media release
Physicists have discovered radical new properties in a nanomaterial which opens new possibilities for highly efficient thermophotovoltaic cells, which could one day harvest heat in the dark and turn it into electricity. The research team from the Australian National University and the University of California Berkeley demonstrated a new artificial material, or metamaterial, that glows in an unusual way when heated. (2016-04-18)

New metamaterial allows transmission gain while retaining negative refraction property
Electrical engineers at the University of Arizona studying a negative index metamaterial have observed a previously unheard of net gain at microwave frequency, demonstrating a previously debated hypothesis; study to be published in forthcoming APS journal, Physical Review Letters. (2011-11-09)

Bending light with better precision
Finer control over electromagnetic radiation using memory metamaterials yields technology that could improve medical imaging devices, airport security, and satellite communications, as well as provide new methods for object cloaking. (2011-08-15)

Getting light to bend backwards
While developing new lenses for next-generation sensors, researchers have crafted a layered material that causes light to refract, or bend, in a manner nature never intended. (2007-10-16)

Electrical signals dictate optical properties
Researchers at the University of Southampton's Optoelectronics Research Centre have created an artificial material, a metamaterial, with optical properties that can be controlled by electric signals. (2013-03-19)

'T-ray' breakthrough signals next generation of security sensors
A new generation of sensors for detecting explosives and poisons could be developed following new research into a type of radiation known as T-rays, published today (Feb. 3) in Nature Photonics. (2008-02-05)

New technique allows ultrasound to penetrate bone, metal
Researchers have developed a technique that allows ultrasound to penetrate bone or metal, using customized structures that offset the distortion usually caused by these so-called 'aberrating layers.' (2014-11-20)

Sound-shaping super-material invented
A super-material that bends, shapes and focuses sound waves that pass through it has been invented by scientists. (2017-02-27)

Flipping a photonic shock wave
Physicists at Zhejiang University in China and the Massachusetts Institute of Technology has developed a new metamaterial structure that successfully demonstrates reverse Cerenkov radiation. (2009-11-02)

'Lossless' metamaterial could boost efficiency of lasers and other light-based devices
Engineers at the University of California San Diego have developed a material that could reduce signal losses in photonic devices. The advance has the potential to boost the efficiency of various light-based technologies including fiber optic communication systems, lasers and photovoltaics. (2017-02-17)

Scientists take a 'metamaterials' approach to earthquake damage
At the SSA 2019 Annual Meeting, seismologists from around the world will discuss how metamaterial theory might be applied to everything from developing deflective barriers to manipulating the layout of buildings within a city as a way to minimize the impact of damaging surface seismic waves. (2019-04-26)

Team develops new metamaterial device
Terahertz radiation, a fleeting phase of the electromagnetic spectrum, has proved difficult to manipulate with great precision. A team of researchers report engineering a solid-state metamaterial device capable of controlling a terahertz beam 30 times faster than a conventional optical device. The device could prove critical to new applications employing the terahertz frequency. (2009-02-24)

Penn research shows way to design 'digital' metamaterials
Figuring out the necessary composition and internal structure to create the unusual properties of metamaterials is a challenge but new Penn research, borrowing concepts from binary computing, presents a way of simplifying things. (2014-12-01)

Iowa State, Ames Lab physicist developing, improving designer optical materials
Costas Soukoulis of Iowa State University and the Ames Laboratory writes about the development of optical metamaterials in the latest issue of the journal Science. He writes advanced fabrication techniques may make the man-made materials a practical way to control light for superlenses and other applications. (2010-12-16)

Novel man-made material could facilitate wireless power
Electrical engineers at Duke University have determined that unique man-made materials should theoretically make it possible to improve the power transfer to small devices, such as laptops or cell phones, or ultimately to larger ones, such as cars or elevators, without wires. (2011-05-23)

Push to twist: Achieving the classically impossible in human-made material
Researchers have designed a metamaterial that can twist to the right or the left in response to a straight, solid push. (2017-11-23)

Dielectric metamaterial is dynamically tuned by light
Researchers at Duke University have built the first metal-free, dynamically tunable metamaterial for controlling electromagnetic waves. The approach could form the basis for technologies ranging from improved security scanners to new types of visual displays. While previous metamaterials control electromagnetic waves through their electric properties, the new technology can also manipulate them through their magnetic properties. It won't melt and can be reconfigured on the fly. (2018-05-01)

To infinity and beyond: Light goes infinitely fast with new on-chip material
Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences have designed the first on-chip metamaterial with a refractive index of zero, meaning that the phase of light can travel infinitely fast. (2015-10-19)

Metamaterial uses light to control its motion
Researchers have designed a device that uses light to manipulate its mechanical properties. The device, which was fabricated using a plasmomechanical metamaterial, operates through a unique mechanism that couples its optical and mechanical resonances, enabling it to oscillate indefinitely using energy absorbed from light. (2016-10-10)

BU researchers design 'intelligent' metamaterial to make MRIs affordable and accessible
Boston University researchers have developed a new, 'intelligent' metamateria l-- which costs less than ten bucks to build -- that could revolutionize magnetic resonance imaging (MRI), making the entire MRI process faster, safer, and more accessible to patients around the world. (2019-11-05)

Virtualized metamaterials opens door for acoustics application and beyond
Scientists from the Hong Kong University of Science and Technology (HKUST) have realized what they called a virtualized acoustic metamaterial, in digitizing material response to an impulse response stored in a software program. (2020-03-03)

Invisible needles
An international research group of scientists from Politecnico di Torino (Italy) and NUST MISIS (Russia) has developed a model of a new metamaterial, which will improve the accuracy of nano-sensors in optics and biomedicine by cloaking them from external radiation. The article reporting the results has been recently published in Scientific Reports, a high rank, prestigious interdisciplinary journal, edited by Nature Publishing House. (2018-08-28)

Metamaterial device allows chameleon-like behavior in the infrared
An electric current will not only heat a hybrid metamaterial, but will also trigger it to change state and fade into the background like a chameleon in what may be the proof-of-concept of the first controllable metamaterial device, or metadevice, according to a team of engineers. (2016-10-27)

New metamaterial offers reprogrammable properties
EPFL scientists have developed a metamaterial whose mechanical properties can be reprogrammed on demand and whose internal structure can be modified by applying a magnetic field. (2021-01-20)

Genetic approach helps design broadband metamaterial
A specially formed material that can provide custom broadband absorption in the infrared can be identified and manufactured using 'genetic algorithms,' according to Penn State engineers, who say these metamaterials can shield objects from view by infrared sensors, protect instruments and be manufactured to cover a variety of wavelengths. (2014-05-05)

Exotic materials will change optics, Duke researchers say
Duke University engineers believe that continued advances in creating ever-more exotic and sophisticated man-made materials will greatly improve their ability to control light at will. (2012-03-18)

Beyond good vibrations: New insights into metamaterial magic
Metamaterials have amazing potential--think invisibility cloaks and perfect lenses--but they are more likely to be found in a Harry Potter novel than a lab. To help bring them closer to reality, Michigan Technological University's Elena Semouchkina has gone back to basics and demonstrated that the fundamental physics of metamaterials is more complex than scientists once thought. (2017-11-06)

Shape-changing metamaterial developed using Kirigami technique
Engineers from the University of Bristol have developed a new shape-changing metamaterial using Kirigami, which is the ancient Japanese art of cutting and folding paper to obtain 3-D shapes. (2016-08-05)

Metamaterial separation proposed for chemical, biomolecular uses
The unique properties of metamaterials have been used to cloak objects from light, and to hide them from vibration, pressure waves and heat. Now, a Georgia Institute of Technology researcher wants to add another use for metamaterials: creating a new directional separation technique that cloaks one compound while concentrating the other. (2016-03-02)

Shining a light on the elusive 'blackbody' of energy research
A designer metamaterial can engineer emitted (2011-07-22)

Growth under pressure: New metamaterial designed with counterintuitive property
Inspired by 3-D printing, researchers explored development of one mechanical property called effective static compressibility. As they now report in Applied Physics Letters, by using a single cartridge it's possible to print a metamaterial which expands in size under hydrostatic pressure, even though it's made up of material which behaves normally under hydrostatic pressure -- that is, it shrinks. In principle, there is no limit to the negative value this material's effective compressibility can take. (2017-04-24)

Researchers boost wireless power transfer with magnetic field enhancement
Research from North Carolina State University and Carnegie Mellon University shows that passing wireless power transfer through a magnetic resonance field enhancer (MRFE) -- which can be as simple as a copper loop -- can boost the transfer efficiency by at least 100 percent as compared to transferring through air alone. MRFE use could potentially boost transfer efficiency by as much as 5,000 percent in some systems, experts say. (2015-07-23)

BU researchers develop new metamaterial that can improve MRI quality and reduce scan time
New magnetic metamaterial could be used as an additive technology to increase the imaging power of lower-strength MRI machines, increasing the number of patients seen by clinics and decreasing associated costs, without any of the risks that come with using higher-strength magnetic fields. (2019-06-10)

Quantum control
An international team consisting of Russian and German scientists has made a breakthrough in the creation of seemingly impossible materials. They have managed to create the world`s first quantum metamaterial which can be used as a control element in superconducting electrical circuits. (2018-01-23)

Caltech-led team designs novel negative-index metamaterial that responds to visible light
A group of scientists led by researchers from Caltech has engineered a type of artificial optical material -- a metamaterial -- with a particular three-dimensional structure such that light exhibits a negative index of refraction upon entering the material. In other words, this material bends light in the (2010-04-22)

Single photons for optical information transfer
A research team at the University of Alberta wants to refine the optical transmission of information by using a single photon, the fundamental building block of light that can allow unprecedented applications in optical information transfer. (2011-10-27)

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