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Home > News > Tags > metamaterials
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Stories about: metamaterials |
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A group of German researchers have managed for the first time ever to develop a pentamode metamaterial. This is a material in which shear parameters are equal to zero, and compression is the only value that is not zero. The state of water is the ideal state of such a metamaterial as well.
Experts with the research ... |
11 May 2012
10:41 GMT |
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A group of investigators from the Harvard University School of Engineering and Applied Sciences (SEAS) announces the development of a new method for creating 3D patterns and dots on the surface of various materials. This technique could be used for creating advanced metamaterials.This accomplishment will undoubtedly ... |
10 March 2012
05:49 GMT |
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A team of experts from the Massachusetts Institute of Technology (MIT), in Cambridge, announces the development of a new type of metamaterials, which they say can absorb light at multiple wavelengths with extreme efficiency.
The accomplishment could open the way for a brand-new generation of optical sensors and adva... |
9 March 2012
16:31 GMT |
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Scientist Mohammad-Reza Alam predicts that it may be possible to create an invisibility cloak capable of concealing ships, oil platforms, and other man-made structures, from the fury of rough seas. This is the first time such a technique has been proposed.
Creating such a scenario is entirely different from using m... |
5 March 2012
10:20 GMT |
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Bridges, nuclear power plants, dams and other strategically-important buildings could be “cloaked” against the seismic waves earthquakes produce. This could be achieved by using innovative metamaterials, constructs that do not exist in nature, and which can easily steer seismic waves.
In other words, the... |
13 February 2012
05:42 GMT |
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Physicists in the United Kingdom, at the University of Southampton, propose the existence of a new force that is capable of making metamaterials attach themselves to other surfaces. The work is heavily influenced by a theory proposed by scientist James Clerk Maxwell, back in 1871.
At the time, the expert predicted ... |
17 January 2012
08:04 GMT |
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A group of investigators from the Purdue University announce the development of specialized arrays capable of controlling light. The instruments can manipulate photons in very specific ways, potentially enabling a new generation of computers, microscopes and telecommunications devices.
The arrays are made up of ver... |
27 December 2011
04:34 GMT |
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A group of physicists and chemists at the Rice University announces the development of a new method to produce advanced compounds out of the weird form of bi-dimensional carbon called graphene. The new study shows promise for producing structures that leave material scientists in awe.New metamaterials, high... |
22 October 2011
06:37 GMT |
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Physicists at the Rice University were recently able to develop a new approach to controlling light scattered from gold nanorods. Their method relies on the use of liquid crystals in a way that has never been reported before, and that could enable a new generation of optical materials and metamaterials.
The goal o... |
30 September 2011
06:37 GMT |
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A group of investigators at the Purdue University, led by expert Evgenii Narimanov, announces the development of a new type of metamaterial that is capable of absorbing much more light than any competitor on the market today. To a casual observer, the material appears extremely black.
The most potent black dyes c... |
29 September 2011
20:31 GMT |
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Officials with the University of Michigan announce the opening of the Center for Photonic and Multiscale Nanomaterials, an advanced research facility whose main goal is to improve our understanding of how light can be manipulated.
In order to do that, investigators working at C-PHOM will create new metamaterials,... |
10 September 2011
05:39 GMT |
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A group of investigators in the United States announces the development of a system that represents the first demonstration of light and plasmon coupling in the carbon compound called graphene. The work also sets the foundation for using graphene as a basis for new generations of metamaterials.
This investigation... |
5 September 2011
02:37 GMT |
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A group of investigators at the University of Maryland, in the United States, announce that they were recently able to simulate the end of time. They say that the conditions they replicated are known to astronomers as the Big Crunch, or the final event to take place in the Universe.
What the scientists determined ... |
30 July 2011
04:02 GMT |
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All materials that appear in nature have a positive refractive index, but a team of experts recently manged to produce a new device, that has an index of refraction of zero. This is the first time that such a material is produced using nanotechnology.Columbia Engineering School investigators led the collaborative res... |
11 July 2011
04:46 GMT |
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An international research team managed to develop an inexpensive, simple system of camouflaging objects as if they were covered with an invisibility cloak. Generally, this cannot be done for macroscopic objects and in visible light, but the collaboration managed to circumvent the limitation.Taking inspiration from sc... |
25 January 2011
11:03 GMT |
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Materials scientists from the Purdue University are currently at the forefront of research in this field, developing the building blocks that tomorrow's advanced optical technologies will use. They are creating materials from scratch, in ways that enable the innovations to fulfill certain functions.For instance,... |
22 January 2011
07:16 GMT |
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For the first time in many years, physicists were able to discover and confirm the existence of Mobius symmetry inside real-world materials. Granted, the objects that display this property are man-made, and called metamaterials.They are designed in such a way so as to bend light radiation in fascinating way, which is... |
21 December 2010
05:46 GMT |
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A group of scientists from the United States announced the development of a new type of metamaterial, that is capable of bending both light and itself, opening up the way for a new host of applications, such as advanced camouflages. The achievement is significant because it operates in the developing field of metamat... |
8 November 2010
03:02 GMT |
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Over the past few years, materials scientists have developed a series of new inventions, metamaterials that have exquisite physical and chemical properties. But because they are extremely advanced, they are still incredibly difficult to produce.A team of investigators from the Interuniversity Microelectronics Center ... |
27 October 2010
10:00 GMT |
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Physicists at the California Institute of Technology (Caltech) have recently demonstrated that, by stretching metamaterials, they can dynamically change the wavelength of infrared light the structure naturally responds to.Metamaterials are constructs put together by humans, a variety of materials that is able to infl... |
8 October 2010
09:44 GMT |
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A team of experts from California announces that it manage to improve silicon-based thermoelectric materials to such an extent, that they are now able to harvest waste heat energy.The accomplishment is tremendously important, researchers say, given that it could lead to the creation of devices that can convert heat f... |
4 October 2010
03:27 GMT |
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In what could be likened to a “brute force” approach to characterizing the traits of new photonic metamaterials, researchers are now using combinatorial chemistry to discover materials that could underlie the technology of tomorrow. A team of engineers in the United Kingdom has recently developed a way of... |
7 September 2010
03:45 GMT |
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Metamaterials are a very special class of materials that are engineered specifically for a certain job. Though they are basically common chemical elements, or mixes thereof, their internal structures are arranged differently than they are in nature. As such, metamaterials can be used for a variety of applications for... |
5 August 2010
05:10 GMT |
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For many years, science-fiction and fantasy writers have been inspired by the idea of making something or someone disappear from view. Be it a cloak, a potion, a spell or a ring, plot lines always feature a device that can render things invisible, hiding them from danger, or allowing them to slip by unnoticed. But, f... |
22 July 2010
06:09 GMT |
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Metamaterials are undoubtedly among the most interesting structures in existence today. They can be engineered in a manner that allows for them to bend light and other types of electromagnetic waves. As such, they are mostly used for such purposes as to create artificial black holes and invisibility cloaks. More and ... |
10 May 2010
10:50 GMT |
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A collaboration of scientists from the US National Institute of Standards and Technology (NIST), and partners in the industry and academia, was able to develop small-scale antennas that acted just like the real deal. In fact, the innovative devices are so good at what they were built to do, that there is no significa... |
27 January 2010
19:11 GMT |
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Experts from the Northwestern University Electronic Materials Research Institute, led by Director and Distinguished Professor Srinivas Sridhar, PhD, announce that they were able to produce a new type of lens. The device, which is built at the nanoscale, operates in such a manner that it exceeds the diffraction limit,... |
19 January 2010
16:11 GMT |
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In a groundbreaking, new work, scientists at the FOM institute AMOLF, in the Netherlands, managed to use the magnetic field of light to power up an energy transfer between nanoelectromagnets. This has never been achieved before anywhere in the world, and the group is very excited about its success. In addition to bre... |
23 December 2009
16:21 GMT |
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Scientists at the Duke University announce the development of a new type of electromagnetic lens that is able to focus wavelengths a lot more clearly than average lenses. The new device doesn't look like a conventional lens and is not made up of a transparent material, such as glass and plastic. The DU team ... |
21 December 2009
05:27 GMT |
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With the inevitable advent of metamaterials and invisibility cloaks, the world is eager to know precisely how a hidden object would look like in real life. While practical applications are still some time away, German researchers at the Karlsruhe Institute of Technology have recently released a series of pictures on ... |
13 November 2009
19:31 GMT |
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Scientists and engineers at the Imperial College London (ICL), in the United Kingdom, were recently awarded a new, £4.9-million ($8.1-million) grant to investigate the properties of metamaterials. The money, which came from The Leverhulme Trust, are destined for the creation of invisibility cloaks and perf... |
12 November 2009
17:01 GMT |
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Physicists at the Zhejiang University, in China, and the Massachusetts Institute of Technology (MIT), in the US, have recently discovered a reverse shock wave of light forming in a special type of structure, known as a left-handed metamaterial. This is the first time the effect is directly observed in such a specific... |
3 November 2009
17:41 GMT |
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Far from being the only ones attempting to create an artificial black hole, Chinese researchers recently announced that they were able to produce the first artificial black hole for microwaves. If light in this energy spectrum enters the construct, it can no longer leave it, the team reports. Its accomplishment was m... |
14 October 2009
08:48 GMT |
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Scientists at the Oregon State University (OSU) have recently announced the creation of a new type of “plasmonic nanorod metamaterial,” which relies on the power of small, gold nanorods to create advanced nanosensors. The new devices could have a wide array of applications in fields ranging from medicine ... |
14 October 2009
03:30 GMT |
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In a groundbreaking new study, published today, in the August 14th issue of the New Journal of Physics, experts from the Physics Department at the Hong Kong University of Science and Technology announce that that they are nearing the creation of the first-ever tunable electromagnetic gateway. This device, which, even... |
13 August 2009
06:55 GMT |
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Physicists at the Boston College have recently managed to use new metamaterials to successfully control a beam of light employing a set of complex instructions. The achievement could have significant applications in the field of bending light around corners or other objects, and could contribute significantly to prod... |
1 August 2009
04:49 GMT |
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Experts at the University of Illinois have just created a new type of acoustic metamaterial, which can pave the way for applications such as better ultrasound scans, non-invasive building risk assessment, structural integrity testings, and new types of underwater stealth technologies.UI Professor of Mechanical Scienc... |
25 June 2009
16:01 GMT |
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Researchers from the University of Illinois at Urbana Champaign (UI) have managed to create a new type of metamaterial that is able to guide sound waves through very tiny structures. The innovation could have significant applications in the field of medicine, as well as for new military devices. Doctors could use it ... |
16 June 2009
16:41 GMT |
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Despite the fact that numerous research teams around the globe are currently working to develop the best possible cloaking technology, the methods that exist at this point are very hard to achieve, cost a lot of money to operate, and are also unable to hide larger objects from view. But a breakthrough, achieved by ex... |
21 May 2009
09:44 GMT |
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One of the many goals of nanotechnology is to make microscopic particles come together inside living organisms, so as to form transistors, metamaterials, or even microscale robots in designated locations, which cannot be reached with larger materials. But one of the main problems of self-assembly has been the fact th... |
17 March 2009
09:59 GMT |
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Optical materials have been stretched to the maximum limits of their abilities over the years, but now researchers say that it's time for another class of materials to take their place. Apparently, that class of materials will be nanoparticles, as they seem to have the ability to distort and bend light in ways t... |
3 March 2009
10:48 GMT |
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Researchers at Duke University who are currently working on new ways of diverting large portions of the visible light spectrum through artificial so-called “invisibility cloaks,” announced recently that a functional prototype could be available in less than six months, if the pace of their innovation cont... |
17 January 2009
02:01 GMT |
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Conventional lenses, no matter how powerful, are only able to magnify light to nearly half of the wavelength, or the so-called diffraction limit. This basically means that the dimensions of optical storing devices or the sizes of the features created on silicon chips are limited to how much focusing power a particula... |
25 April 2008
07:23 GMT |
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Metamaterials have the unique capability of experiencing negative refractive indexes, thus literally refracting light through themselves without reflecting any to the source, therefore making any object hidden behind it invisible. This is not available only for light, acoustic waves can be also manipulated in similar... |
1 April 2008
11:09 GMT |
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Metamaterials promise us optical and acoustic invisibility, even if, for now, such phenomenons are restricted to certain wavelengths and 2-dimensional use. Scientists now believe that, by using the electromagnetic properties of metamaterials, smaller resonating circuits can be produced (such as those generating micro... |
19 March 2008
06:26 GMT |
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For nanoparticles this time though. Researchers from the Carnegie Mellon University's Material Science and Engineering and Chemistry have succeeded in partially cloaking nanoparticles by 'shrinking' their visible size without affecting the physical dimension of the particle. The study was conducted by ... |
7 March 2008
04:07 GMT |
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The universe is a world of infinite possibilities. Well, at least theoretically. Theoretical physics predicts anything from parallel universes to time travel. But, as we came to find out, neither of these two concepts are really so easy to prove. Invisibility cloaks are not different. Although physicists clearly show... |
12 January 2008
06:29 GMT |
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Invisibility cloaks and ultra-fast computers could one day be powered by such an exotic device, however, multiple problems need to be solved before these crystals become useful. Several metamaterials have been designed over the years, but the technological process involved in building them presents multiple technolog... |
18 December 2007
08:57 GMT |
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Researchers studying the properties of metamaterials have found a way to lower the speed a beam of light is traveling at, by separating it in its constituent colors, creating some kind of a trapped rainbow. Light travels through space, at a speed of about 300,000 kilometers per second and is the maximum speed in the ... |
15 November 2007
06:28 GMT |
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'Wormholes' are mostly associated to black holes, and usually it denotes the possibility of time travel or space travel over great distances, at speeds that do not pass the speed of light, while passing through a singularity. Recently, Yaroslav Kurylev at the University College London in the UK, came up wit... |
10 November 2007
05:06 GMT |
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