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February 26, 2012 09:45 am EDT

Light-based 'Metatronics' chip melts minds, not copper

Engineers at the University of Pennsylvania have flipped the switch on a new type of computer circuit. Unlike conventional silicon, the new chip uses light -- not electricity -- to perform its logic. By creating an array of nano-rods, light-flow can be treated like voltage and current. These rods can then be configured to emulate electrical components such as resistors, inductors and capacitors. The benefits of the so-called "metatronic" system would be smaller, faster and more efficient computer chips, which is clearly a welcome prospect. Another curious property the team discovered, is what it calls "stereo-circuitry." Effectively one set of nano-rods can act as two different circuits, depending on the plane of the field. This means your CPU could become a GPU just by changing the signal. We can't speak for the light itself, but our minds are certainly bent.

Light-based 'Metatronics' chip melts minds, not copper originally appeared on Engadget on Sun, 26 Feb 2012 04:45:00 EDT. Please see our terms for use of feeds.

PermalinkExtremeTech | sourceUniversity of Pennsylvania ||Comments

Original Link: http://www.engadget.com/2012/02/26/light-based-metatronics-chip-melts-minds-not-copper/

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Engadget is a web magazine with obsessive daily coverage of everything new in gadgets and consumer electronics. Engadget was launched in March of 2004 in partnership with the Weblogs, Inc. Network (WI

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