metamaterials – The InfoGreenGlobal

Metamaterials may boost wireless power transfer

Gabriel — Tue, 13 Mar 2012 20:10:30 +0000

More than one hundred years after the pioneering inventor Nikola Tesla first became fascinated with wireless energy transfer, the spread of mobile electronic devices has sparked renewed interest in the ability to power up without plugging in. Now researchers from Duke University in Durham, N.C., and the Mitsubishi Electric Research Laboratories in Cambridge, Mass., have […]

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Metamaterial could be far more efficient at capturing sunlight than existing solar cells

Gabriel — Sat, 10 Mar 2012 15:48:56 +0000

Metamaterials are a new class of artificial substances with properties unlike anything found in the natural world. Some have been designed to act as invisibility cloaks; others as superlenses, antenna systems or highly sensitive detectors. Now, researchers at MIT and elsewhere have found a way to use metamaterials to absorb a wide range of light […]

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Metamaterials Boosts Electromagnetism Safely

Gabriel — Thu, 01 Mar 2012 19:30:00 +0000

By using exotic man-made materials, scientists from Duke University and Boston College believe they can greatly enhance the forces of electromagnetism (EM), one of the four fundamental forces of nature, without harming living beings or damaging electrical equipment. This theoretical finding could have broad implications for such applications as magnetic levitation trains, which ride inches […]

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The concept of an optical invisibility cloak to sound waves

Gabriel — Tue, 20 Dec 2011 19:49:43 +0000

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 […]

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Terahertz Invisibility Cloak Unveiled at Conference on Lasers and Electro-Optics 2011

Gabriel — Fri, 29 Apr 2011 05:13:12 +0000

Humans generally recognize objects through two features: their shape and color. To render an object invisible, one must be able to manipulate light so that it will neither scatter at an object’s surface nor be absorbed or reflected by it (the process which gives objects color). Researchers at Northwestern University have created a new kind […]

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The Idea of Invisible Cloak Which Hides Objects Reloaded

Adrian — Fri, 17 Dec 2010 11:31:32 +0000

There were many movies which use the invisibility as idea of hide people or things. Trying to cloak something and make it invisible has been more fantasy than reality. Harry Potter used his invisibility cloak to sneak into places at school. Actually the physicist Ulf Leonhardt was inspired by J K Rowling. Using a 100,000 […]

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Invisibility Cloaks Could Work

Gabriel — Thu, 04 Nov 2010 19:27:24 +0000

An Invisible Man with perfect vision sounds like a superhero from a comic, but may be close to reality thanks to scientists at the University of St Andrews. A team of physicists are one step closer to creating a Harry Potter-style invisibility cloak, with a new form of material that could also be attached to […]

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