Breakthrough could make smartphones and laptops 1,000 times faster

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Eclipsing today’s devices that operate in the gigahertz frequency region

Researchers at University of Pittsburgh have generated a frequency comb (a slice of spectrum) with more than 100 terahertz bandwidth, eclipsing today’s devices that operate in the gigahertz frequency region.

A team of scientists report a communications breakthrough that they say could be used to speed up electronic devices by a factor of one thousand.

The University of Pittsburgh team claims to have successfully generated a frequency comb, which entails dividing a single color of light into a series of evenly spaced spectral lines for a variety of uses, that spans more than 100 terahertz (THz, or 1 trillion cycles per second) bandwidth.

Terahertz radiation is the portion of the electromagnetic spectrum between infrared and microwave light.

Hrvoje Petek, a professor of physics and chemistry at Pitt, said that this has been long-awaited discovery in the field. Petek and his team generated the all-optical frequency comb by investigating the optical properties of a silicon crystal and “exciting a coherent collective of atomic motions in a semiconductor silicon crystal” with an intense laser pulse.

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