Popular Metamaterial News and Current Events

Popular Metamaterial News and Current Events, Metamaterial News Articles.
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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)

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)

Silicon nanoblock arrays create vivid colors with subwavelength resolution
Osaka University researchers demonstrated a range of highly tunable vivid color pixels controlled by the geometry of a monocrystalline silicon metamaterial surface. The pixels created showed dual-color response dependent on the polarization of the light source, as well as subwavelength resolution. These materials have potential applications in high-resolution printing, particularly for anti-counterfeiting technology. They could also be used for optical data storage and three-dimensional displays. (2018-01-25)

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)

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)

Synthetic material acts like an insect cloaking device
Synthetic microspheres with nanoscale holes can absorb light from all directions across a wide range of frequencies, making them a candidate for antireflective coatings, according to a team of Penn State engineers. The synthetic spheres also explain how the leaf hopper insect uses similar particles to hide from predators in its environment. (2017-11-03)

SUTD researchers revolutionize 3D printed products with data-driven design method
SUTD demonstrated this new cost-effective, data-driven approach by designing and 3D printing an ankle brace that has varying degrees of rigidity to provide both comfort and support for the user. (2019-09-20)

Quantum mechanics are complex enough, for now...
Physicists have searched for deviations from standard quantum mechanics, testing whether quantum mechanics requires a more complex set of mathematical rules. To do so a research team designed a new photonic experiment using exotic metamaterials, which were fabricated at the University of California Berkeley. Their experiment supports standard quantum mechanics and allows the scientists to place bounds on alternative quantum theories. The results could help to guide theoretical work in a search for a more general version of quantum mechanics. (2017-04-21)

Design and validation of world-class multilayered thermal emitter using machine learning
NIMS, the University of Tokyo, Niigata University and RIKEN jointly designed a multilayered metamaterial that realizes ultra-narrowband wavelength-selective thermal emission by combining the machine learning (Bayesian optimization) and thermal emission properties calculations (electromagnetic calculation). The joint team then experimentally fabricated the designed metamaterial and verified the performance. These results may facilitate the development of highly efficient energy devices. (2019-03-15)

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)

Scientists design new material to harness power of light
Scientists have long known that synthetic materials -- called metamaterials -- can manipulate electromagnetic waves such as visible light to make them behave in ways that cannot be found in nature. That has led to breakthroughs such as super-high resolution imaging. Now, UMass Lowell is part of a research team that is taking the technology of manipulating light in a new direction. (2018-12-17)

Chinese researchers achieve 3D underwater acoustic carpet cloak first with 'Black Panther'-like features
A research team led by professor YANG Jun from the Institute of Acoustics (IOA) of the Chinese Academy of Sciences designed and fabricated a 3D underwater acoustic carpet cloak (UACC) using transformation acoustics. (2018-06-04)

New metamaterials that bend light backwards bring invisibility cloaks 1 step closer
UC Berkeley scientists have for the first time engineered 3-D bulk materials that can reverse the natural direction of visible and near-infrared light, a development that could help form the basis for higher resolution optical imaging, nanocircuits for high-powered computers, and, to the delight of science-fiction and fantasy buffs, cloaking devices that could render objects invisible to the human eye. (2008-08-11)

Cloaking devices -- it's not just 'star trek' anymore
Scientists are now working to take cloaking devices from the dramatic realm of science fiction and make them real. Amanda D. Hanford, at Pennsylvania State University, is taking the introductory steps to make acoustic ground cloaks. These materials redirect approaching waves around an object without scattering the wave energy, concealing the object from the sound waves. During the 175th ASA Meeting, Hanford will describe the physics behind an underwater acoustic shield designed in her lab. (2018-05-10)

Gold-plated crystals set new standard for natural gas detectors
Materials scientists and engineers have developed a sensor that is fast, sensitive and efficient enough to detect specific wavelengths of electromagnetic energy while on the move. The technology could actively scan areas for methane or natural gas leaks, monitor the health of vast fields of crops or quickly sort plastics for recycling. (2017-04-06)

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 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)

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)

A zero-index waveguide
In 2015, Harvard researchers developed the first on-chip metamaterial with a refractive index of zero, meaning that the phase of light could be stretched infinitely long. The metamaterial represented a new method to manipulate light and was an important step forward for integrated photonic circuits. Now, Harvard researchers have developed a zero-index waveguide compatible with current silicon photonic technologies. In doing so, the team observed a physical phenomenon that is usually unobservable -- a standing wave of light. (2017-10-09)

New concept for tractor beam from Star Wars developed
Physicists from ITMO University developed a model of an optical tractor beam to capture particles based on new artificial materials. Such a beam is capable of moving particles or cells towards the radiation source. The study showed that hyperbolic metasurfaces are promising for experiments on creating the tractor beam, as well as for its practical applications. The results are published in ACS Photonics. (2018-11-27)

3-D printed active metamaterials for sound and vibration control
Researchers have been pushing the capabilities of materials by carefully designing precise structures that exhibit abnormal properties that can control acoustic or optical waves. However, these metamaterials are constructed in fixed geometries, meaning their unique abilities are always fixed. Now, new 3-D printed metamaterial developed by a team led by University of Southern California researchers can be remotely switched between active control and passive states. (2018-04-11)

Physicists have found a way to 'hear' dark matter
Physicists at Stockholm University and the Max Planck Institute for Physics have turned to plasmas in a proposal that could revolutionise the search for the elusive dark matter. (2019-10-09)

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)

Low cost, energy-saving radiative cooling system ready for real-world applications
University of Colorado Boulder and University of Wyoming engineers have successfully scaled up an innovative water-cooling system capable of providing continuous day-and-night radiative cooling for structures. The advance could increase the efficiency of power generation plants in summer and lead to more efficient, environmentally-friendly temperature control for homes, businesses, utilities and industries. (2018-10-26)

Researchers discover a metamaterial with inherently robust sound transport
Researchers at the Advanced Science Research Center (ASRC) at The Graduate Center of The City University of New York and at the City College of New York (CCNY) have developed a metamaterial that can transport sound in unusually robust ways along its edges and localize it at its corners. (2018-12-31)

CCNY study breaks Förster resonant energy transfer (FRET) distance limit
Using engineered nanocomposite structures called metamaterials, a City College of New York-led research team reports the ability to measure a significant increase in the energy transfer between molecules. Reported in the journal ACS Photonics, this breakthrough breaks the Förster resonance energy transfer (FRET) distance limit of ~10-20 nanometers, and leads to the possibility of measuring larger molecular assemblies. (2018-10-25)

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)

BU researchers develop 'acoustic metamaterial' that cancels sound
Boston University researchers, Xin Zhang, a professor at the College of Engineering, and Ghaffarivardavagh, a Ph.D. student in the Department of Mechanical Engineering, released a paper in Physical Review demonstrating it's possible to silence noise using an open, ringlike structure, created to mathematically perfect specifications, for cutting out sounds while maintaining airflow. (2019-03-07)

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)

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 metasurface design can control optical fields in three dimensions
A team led by scientists at the University of Washington has designed and tested a 3D-printed metamaterial that can manipulate light with nanoscale precision. As they report in a paper published Oct. 4 in Science Advances, their designed optical element focuses light to discrete points in a 3D helical pattern. (2019-10-04)

Building blocks to create metamaterials
An international team, led by Chiara Daraio, uses techniques from quantum mechanics to create a system for engineering how metamaterials will interact with waves. (2018-01-17)

A cool alternative to air conditioning
An inexpensive passive cooling technology could be used to cool buildings in cities, reducing energy consumption. (2019-10-08)

Artificial materials reconstruct the porpoise's echolocation
Here, a study proposed a physical directional emission model to bridge the gap between porpoises' biosonar and artificial metamaterial. Inspired by the anatomical and physical properties of the porpoise's biosonar transmission system, researchers fabricated a hybrid metamaterial system composed of multiple composite structures. The metamaterial-based physical model may be helpful to achieve the physical mechanisms of porpoise biosonar detection and has diverse applications in underwater acoustic sensing, ultrasound scanning, and medical ultrasonography. (2019-09-19)

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)

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)

Legos and origami inspire next-generation materials
Inspired by the fun of playing with Legos, an international team of researchers from Tianjin University of Technology and Harvard University have used the idea of assembling building-blocks to make the promise of next-generation materials a practical reality. (2017-03-28)

Spin-current generation gets mid-IR boost with plasmonic metamaterial
Researchers have begun to use metamaterials, engineered composites that have unique properties not found in nature, to enhance the absorption rates of plasmonic absorbers, and a team in Japan used a trilayered metamaterial to develop a wavelength-selective plasmonic metamaterial absorber on top of a spintronic device to enhance the generation of spin currents from the heat produced in the mid-infrared regime. The research is reported this week in APL Photonics. (2017-10-10)

NUST MISIS scientists present metamaterial for solar cells and nanooptics
A research team from the NUST MISIS Laboratory of Superconducting Metamaterials led by Alexey Basharin, Senior Lecturer and Candidate of Technical Sciences, has developed a metamaterial-dielectric that has unique characteristics and is easy to manufacture. This ease of access will allow researchers to use it to create the latest optical devices. The research results were published in Laser&Photonics Reviews. (2018-07-23)

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)

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