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Latest Negative index metamaterials Stories

2014-05-08 12:33:48

DUBLIN, May 8, 2014 /PRNewswire/ -- Research and Markets (http://www.researchandmarkets.com/research/g35t2v/metamaterials) has announced the addition of the "Metamaterials Market by Device Type, Metamaterial Type, Application & Geography - Trends & Global Forecasts to 2025" report to their offering. http://photos.prnewswire.com/prnh/20130307/600769 Although artificial materials were discovered a long time ago, significant developments and researches on their synthesis started only...

Zero-Index MetaMaterial Holds Promise For Future Quantum Networks And Light Sources
2013-12-06 08:25:49

Lawrence Berkeley National Laboratory The Information Age will get a major upgrade with the arrival of quantum processors many times faster and more powerful than today’s supercomputers. For the benefits of this new Information Age 2.0 to be fully realized, however, quantum computers will need fast and efficient multi-directional light sources. While quantum technologies remain grist for science fiction, a team of researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley...

2013-03-22 09:48:01

Researchers with the U.S. Department of Energy (DOE)´s Lawrence Berkeley National Laboratory (Berkeley Lab) have once again demonstrated the incredible capabilities of metamaterials — artificial nanoconstructs whose optical properties arise from their physical structure rather than their chemical composition. Engineering a unique two-dimensional sheet of gold nanoantennas, the researchers were able to obtain the strongest signal yet of the photonic spin Hall effect, an optical...

Negative Refraction In Metamaterials
2012-08-02 11:02:12

April Flowers for redOrbit.com - Your Universe Online In a vacuum, light moves extraordinarily fast. Fast enough to circle the Earth seven times before you can literally blink your eye. When light travels through matter, however, it slows down by just less than a factor of five. This refractive index factor is positive in naturally occurring materials, causing light to bend in a particular direction when it passes through matter like water or a glass, for example. In the last 20...

Exotic Materials Will Change Optics
2012-03-20 03:00:43

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. The burgeoning use of metamaterials in the field of optics does not rely on the limited set of materials found in nature, but rather man-made constructs that can be designed to control light's many properties. This control is gained by use of metamaterials, which are not so much single substances but entire...

Researchers Transfer Concept Of Optical Invisibility Cloak To Sound Waves
2011-12-20 09:08:49

Progress of metamaterials in nanotechnologies has made the invisibility cloak, a subject of mythology and science fiction, become reality: Light waves can be guided around an object to be hidden, in such a way that this object appears to be non-existent. This concept applied to electromagnetic light waves may also be transferred to other types of waves, such as sound waves. Researchers from Karlsruhe Institute of Technology (KIT) have now succeeded in demonstrating for the first time an...

2011-11-09 10:36:17

A new type of active metamaterial that incorporates semiconductor devices into conventional metamaterial structures is demonstrating an ability to have power gain while retaining its negative refraction property, a first in the world of metamaterials research. "Our simulation and experimental results show that the addition of the battery powered semiconductor diodes not only provided gain, but also maintained the negative index of this kind of metamaterial," said Dr. Hao Xin of the...

2011-05-23 22:10:59

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. This advance is made possible by the recent ability to fabricate exotic composite materials known as metamaterials, which are not so much a single substance, but an entire man-made structure that can be engineered to...

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2011-05-19 09:39:31

CFN Scientists at KIT Achieve Optical Invisibility in the Visible Light Spectrum "Seeing something invisible with your own eyes is an exciting experience," say Joachim Fischer and Tolga Ergin. For about one year, both physicists and members of the team of Professor Martin Wegener at KIT's Center for Functional Nanostructures (CFN) have worked on refining the structure of the Karlsruhe invisibility cloak to such an extent that it is also effective in the visible spectral range. In invisibility...

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2011-01-31 09:30:38

Cheaper, lighter and more energy-efficient broadband devices on communications satellites may be possible using metamaterials to modify horn antennas, according to engineers from Penn State and Lockheed Martin Corp. "Existing horn antennas have adequate performance, but have undergone little change over several decades except for advances in more accurate modeling techniques," said Erik Lier, technical Fellow, Lockheed Martin Space Systems Co. "Modifications enabled by metamaterials can...


Word of the Day
cenobite
  • One of a religious order living in a convent or in community; a monk: opposed to anchoret or hermit (one who lives in solitude).
  • A social bee.
This word comes from the Latin 'coenobium,' convent, which comes from the Greek 'koinobios,' living in community.
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