28 Apr '12, 7am

The first practical metamaterial that manipulates visible light.

Image: Carlos García Meca Light Through Layers: Layers of silver and glass in a nanofishnet array make for a metamaterial that bends light the wrong way. Image: Carlos García Meca Nanofishnet: An etched array of holes tunes the metamaterial to handle visible light. Click on the image to enlarge. 25 April 2012—Scientists in England and Valencia, Spain, have constructed what may be the first practical metamaterial that manipulates visible light. The researchers, who predict it could be used for subpicosecond optical switches and finely controlled laser pulses, reported the results at the March meeting of the American Physical Society. The layered structure of the Valencia team’s material, in contrast to the makeup of earlier visible-light devices, means it can conceivably be built up into a usable, full-size object. However, not everyone is convinced this is possible. Metama...

Full article: http://spectrum.ieee.org/semiconductors/optoelectronics/m...

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