Coming soon: More powerful information processing and supercomputer?

London: Scientists claim to have created a new optical device small enough to fit millions on a computer chip which could lead to faster, more powerful information processing and supercomputers.
A team at Purdue University says the "passive optical diode" is made from two tiny silicon rings measuring some 10 microns in diameter, or about one-tenth the width of a human hair, the 'Science' journal reported.
Unlike other optical diodes, it doesn't require external assistance to transmit signals and can be readily integrated into computer chips.
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