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Technology update

Jul 2, 2008

NEMS device gets active

Until now, nanomechanical resonators needed an external source to drive the devices into resonance and to keep them working, but a new self-sustaining oscillator powered only by a DC current has put an end to this problem. The advance will revolutionize miniature active oscillators for use in a variety of applications, including sensors, signal processors and even in nanoscale metrology as clocks.

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