21.02.2011, 13:29 5374

World's first 'anti-laser' developed

Yale University researchers have developed the world's first "anti-laser," a device that can absorb and cancel out a laser beam, Kazakhstan Today reports.

Almaty. February 21. Kazakhstan Today - Yale University researchers have developed the world's first "anti-laser," a device that can absorb and cancel out a laser beam, Kazakhstan Today reports.

Scientists at Yale University say the silicon-based device can absorb an incoming laser beam entirely, converting its light to heat energy, the BBC reported Thursday. The technology could lead to a new generation of supercomputers using light rather than electrons, the researchers say, UPI reported.

The anti-laser device can focus two laser beams of a specific frequency into an optical cavity made from silicon, trapping the incoming beams of light and causing them to bounce around until all their energy is dissipated in the form of heat.

Changing the wavelength of the incoming light switches the anti-laser on and off, creating an optical switch that could be the basis of a very fast optically-based computer.

Using silicon to create the anti-laser means optical components could be manufactured using current technology, researchers say, since the material is already widely used in computing.

Altering the wavelength of the incoming light means that the anti-laser can effectively be turned on and off - and that could be used in optical switches, Professor Stone told BBC News.

The anti-laser could turn out to be more useful in computing than weapon defence.

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