Current Metamaterial News and Events | Page 3

Current Metamaterial News and Events, Metamaterial News Articles.
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Guiding light: Sandia creates 3-D metasurfaces with optical possibilities
The new Sandia metamaterials can be fabricated in multiple layers to form complex, three-dimensional meta-atoms that reflect more light than shiny gold surfaces, usually considered the ultimate in infrared reflectivity. The III-V materials also emit photons when excited -- something that silicon, which can reflect, transmit and absorb -- can't do. (2017-03-09)

Penn engineers' 'photonic doping' makes class of metamaterials easier to fabricate
By carefully combining multiple structures, metamaterials can exhibit properties that don't naturally exist. Penn Engineering's Nader Engheta has a new, simpler way of making them, using a concept dubbed 'photonic doping.' (2017-03-09)

Chiral metamaterial produces record optical shift under incremental power modulation
Georgia Institute of Technology researchers have demonstrated an optical metamaterial whose chiroptical properties in the nonlinear regime produce a significant spectral shift with power levels in the milliwatt range. (2017-02-28)

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)

In great shape
Isomax is now proved to be the world's first to achieve the performance predicted by theoretical bounds. (2017-02-21)

'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)

New mechanical metamaterials can block symmetry of motion, findings suggest
Engineers and scientists at The University of Texas at Austin and the AMOLF institute in the Netherlands have invented the first mechanical metamaterials that easily transfer motion effortlessly in one direction while blocking it in the other. (2017-02-13)

New engineered material can cool roofs, structures with zero energy consumption
A team of University of Colorado Boulder engineers has developed a scalable manufactured metamaterial -- an engineered material with extraordinary properties not found in nature -- to act as a kind of air conditioning system for structures. It has the ability to cool objects even under direct sunlight with zero energy and water consumption. (2017-02-09)

Metamaterial: Mail armor inspires physicists
The Middle Ages certainly were far from being science-friendly: Whoever looked for new findings off the beaten track faced the threat of being burned at the stake. Hence, the contribution of this era to technical progress is deemed to be rather small. Scientists of Karlsruhe Institute of Technology (KIT), however, were inspired by medieval mail armor when producing a new metamaterial with novel properties. They succeeded in reversing the Hall coefficient of a material. (2017-02-09)

Absorbing electromagnetic energy while avoiding the heat
Electrical engineers at Duke University have created the world's first structured metamaterial made without metal that can absorb electromagnetic energy. The advance has direct applications in imaging, sensing and lighting. (2017-01-27)

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)

A toolkit for transformable materials
Harvard researchers have developed a general framework to design reconfigurable metamaterials. The design strategy is scale independent, meaning it can be applied to everything from meter-scale architectures to reconfigurable nano-scale systems such as photonic crystals, waveguides and metamaterials to guide heat. (2017-01-18)

Turning your living room into a wireless charging station
Researchers demonstrate that the technology already exists to produce a wireless power transfer system similar to a flat-screen TV that could remotely charge any device within its line of sight. (2017-01-04)

How to 3-D print your own sonic tractor beam
After demonstrating the first acoustically driven tractor beam platform, researchers develop a simpler, cheaper version using 3-D printable parts and open-source electronic components for the maker community. (2017-01-03)

Metamaterials open up entirely new possibilities in optics
Researchers at Chalmers University of Technology have developed a method that enables them to manipulate light to follow any predetermined path along a surface. The innovation has now been described as one of the world's 30 most exciting discoveries within optics and photonics during 2016. (2016-11-29)

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)

Lego-like wall produces acoustic holograms
Research Triangle engineers have developed a simple, energy-efficient way to create three-dimensional acoustic holograms. By printing plastic blocks containing spirals of differing densities and stacking them in a calculated way, sound waves can be slowed by differing amounts and shaped to fit any wave-front wanted. The technique could revolutionize applications ranging from home stereo systems to medical ultrasound devices. (2016-10-14)

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)

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)

New metamaterials can change properties with a flick of a light-switch
Invisibility cloaks have less to do with magic than with metamaterials. These human-engineered materials have properties that don't occur in nature, allowing them to bend and manipulate light in weird ways. For example, some of these materials can channel light around an object so that it appears invisible at a certain wavelength. Now researchers have designed a new kind of metamaterial whose properties can be changed with a flick of a switch. (2016-08-02)

Flexible building blocks of the future
A discovery by Tel Aviv University researchers may lead to more close-fitting, comfortable and user-friendly prosthetics. (2016-07-29)

Physicists create first metamaterial with rewritable magnetic ordering
University of Notre Dame physicists and their collaborators have produced the first rewriteable artificial magnetic charge ice. The research, described in a paper published in Science today, shows strong potential for technological applications from information encoding, reprogrammable magnonics, and also to spintronics. (2016-05-20)

Scientists take a major leap toward a 'perfect' quantum metamaterial
Scientists have devised a way to build a 'quantum metamaterial' -- an engineered material with exotic properties not found in nature -- using ultracold atoms trapped in an artificial crystal composed of light. The theoretical work represents a step toward manipulating atoms to transmit information, perform complex simulations or function as powerful sensors. (2016-05-11)

Distance wireless charging enhanced by magnetic metamaterials
UAB researchers have developed a system which efficiently transfers electrical energy between two separate circuits. The system, made with a shell of metamaterials which concentrates the magnetic field, could transmit energy efficiently enough to charge mobile devices without having to place them close to the charging base. The research was published in the journal Advanced Materials. (2016-05-10)

Light-powered 3-D printer creates terahertz lens
Created from a 3-D printed metamaterial, the new lens could be used for biomedical research and security imaging. (2016-04-29)

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)

Breaking metamaterial symmetry with reflected light
Optical activity is well known to occur within materials that differ from their mirror image. But what happens if this symmetry is broken by the direction of illumination rather than the material itself? Curiosity about this has led to the discovery of a new type of optical activity. Breaking the symmetry of metamaterials with reflected light will enable novel applications because it causes optical activity of unprecedented magnitude -- far exceeding previously known specular optical activity. (2016-04-05)

CWRU researchers make biosensor 1 million times more sensitive
To provide oncologists a way to detect a single molecule of an enzyme produced by circulating cancer cells, physicists and engineers at Case Western Reserve University have developed an optical sensor, based on nanostructured metamaterials, that's 1 million times more sensitive than the current best available. The device proved capable of identifying a single lightweight molecule in a highly dilute solution. (2016-03-28)

World's thinnest lens to revolutionize cameras
Scientists have created the world's thinnest lens, one two-thousandth the thickness of a human hair, opening the door to flexible computer displays and a revolution in miniature cameras. Lead researcher Dr Yuerui (Larry) Lu from The Australian National University (ANU) said the discovery hinged on the remarkable potential of the molybdenum disulphide crystal. (2016-03-11)

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)

Metamaterials boost sensitivity of MRI machines
Researchers have developed a technology that can reduce Magnetic Resonance Imaging (MRI) scanning times by more than 50 percent, meaning hospitals can drastically increase the number of scans without changing equipment. This extraordinary leap in efficiency is achieved by placing a layer of metamaterials onto the bed of the scanner, which improves the signal-to-noise ratio. This patent-pending technology is currently being co-developed by a UK company that specializes in commercializing metamaterials for medical applications. (2016-01-14)

A new metamaterial will speed up computers
A team of scientists from the Moscow Institute of Physics and Technology and the Landau Institute for Theoretical Physics in the Russian Academy of Sciences has proposed a two-dimensional metamaterial composed of silver elements, that refracts light in an unusual way. The research has been published on Nov. 18, 2015, in Optical Materials Express. In the future, these structures will be able to be used to develop compact optical devices, as well as to create an 'invisibility cloak.' (2015-12-28)

Researchers found an unconventional phase transition in photonic structures
A team of physicists from ITMO University, Ioffe Physical-Technical Institute and Australian National University have researched the phenomenon of phase transition between photonic crystals and metamaterials -- two types of periodic structures capable of manipulating light in intricate ways. The study helps to gain an insight into the fundamental properties of periodic structures and opens new possibilities for the design and creation of new electromagnetic materials. The results of the study were published in Nature Communications. (2015-12-23)

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 research exploits extraordinary properties of graphene
Innovative new research led by the University of Exeter has demonstrated how the extraordinary properties of graphene can be exploited to create artificial structures that can be used to control and manipulate electromagnetic radiation over a wide range of wavelengths. (2015-11-27)

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)

First circularly polarized light detector on a silicon chip
Invention of the first integrated circularly polarized light detector on a silicon chip opens the door for development of small, portable sensors could expand the use of polarized light for drug screening, surveillance, etc. (2015-09-22)

Acoustic imaging with outline detection
Scientists at ETH Zurich have developed a new method to differentiate very weak and short sound waves from longer ones. When used in acoustic imaging, their technology makes it possible to detect only the outline of objects. (2015-09-21)

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)

Bringing back the magic in metamaterials
A research team out of Michigan Tech has found a way to solve one of the biggest challenges in making metamaterials. Their optical work is a big step towards creating a 'perfect lens'. (2015-07-17)

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