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Search results for negative index metamaterials

Nanophysics Dec 22, 2011

'Plasmonic nanoantennas' show promise in optical innovations

(Âé¶¹ÒùÔºOrg.com) -- Researchers have shown how arrays of tiny "plasmonic nanoantennas" are able to precisely manipulate light in new ways that could make possible a range of optical innovations such as more powerful microscopes, ...

Condensed Matter Nov 9, 2011

New metamaterial allows transmission gain while retaining negative refraction property

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 ...

Materials Science Nov 2, 2011

Chemically assembled metamaterials may lead to superlenses

(Âé¶¹ÒùÔºOrg.com) -- Nanomanufacturing technology has enabled scientists to create metamaterials -- stuff that never existed in nature -- with unusual optical properties. They could lead to "superlenses" able to image proteins, ...

General Âé¶¹ÒùÔºics Aug 18, 2011

Bending light the 'wrong' way

(Âé¶¹ÒùÔºOrg.com) -- Scientists have tried this with sophisticated meta-materials, but at the Vienna University of Technology (TU Vienna) it has now been done with simple metals; materials with a negative refractive index bend ...

Optics & Photonics Jul 25, 2011

Engineers develop material that could speed telecommunications

Researchers at Columbia Engineering School have demonstrated that light can travel on an artificial material without leaving a trace under certain conditions, technology that would have many applications from the military ...

Condensed Matter Jul 22, 2011

Shining a light on the elusive 'blackbody' of energy research

A designer metamaterial has shown it can engineer emitted "blackbody" radiation with an efficiency beyond the natural limits imposed by the material's temperature, a team of researchers led by Boston College physicist Willie ...

Optics & Photonics Jul 10, 2011

In a major breakthrough, scientists control light propagation in photonic chips

Researchers at Columbia Engineering School have built optical nanostructures that enable them to engineer the index of refraction and fully control light dispersion. They have shown that it is possible for light (electromagnetic ...

Nanomaterials Jun 15, 2011

Research team develops method to produce large sheets of metamaterials

(Âé¶¹ÒùÔºOrg.com) -- In an announcement many have been waiting for, a research team from the University of Illinois, has succeeded in figuring out how to produce metamaterials in a size big enough to be useful. The team, led ...

General Âé¶¹ÒùÔºics Mar 4, 2011

Invisibility cloaks may be just around the corner

In 1897, H.G. Wells created a fictional scientist who became invisible by changing his refractive index to that of air, so that his body could not absorb or reflect light. More recently, Harry Potter disappeared from sight ...

Condensed Matter Jan 21, 2011

Plasmonic metamaterials: From microscopes to invisibility cloaks

(Âé¶¹ÒùÔºOrg.com) -- A new class of artificial materials called metamaterials -- which derive their properties from carefully engineered, nanostructured building blocks rather than from their chemical composition -- may one day ...

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