Researchers find a new way to read nanoscale vibrations

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Schematic of the experimental setup. The probe of an atomic force microscope is suspended just above a vibrating cantilever. Electrostatic forces cause the probe to vibrate and its vibration is measured by a laser beam. Credit: Craighead Research Gro ...
Schematic of the experimental setup. The probe of an atomic force microscope is suspended just above a vibrating cantilever. Electrostatic forces cause the probe to vibrate, and its vibration is measured by a laser beam. Credit: Craighead Research Group/Cornell

Nanomechanical oscillators -- tiny strips of vibrating silicon only a few hundred atoms thick -- are the subject of extensive study by nanotechnology researchers. They could someday replace bulky quartz crystals in electronic circuits or be used to detect and identify bacteria and viruses.


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