High quality factor gigahertz frequencies in nanomechanical diamond resonators

Details High quality factor gigahertz frequencies in nanomechanical diamond resonators High quality factor gigahertz frequencies in nanomechanical diamond resonators

2007-10-13

arxiv.org/abs/0710.2613v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, two figures, one table, two-column format. Related papers can be found at http://nano.bu.edu/

Scientific paper

10.1063/1.2804573

We report actuation and detection of gigahertz-range resonance frequencies in nano-crystalline diamond mechanical resonators. High order transverse vibration modes are measured in coupled-beam resonators exhibiting frequencies up to 1.441 GHz. The cantilever-array design of the resonators translates the gigahertz-range resonant motion of micron-long cantilever elements to the displacement of the central supporting structure. Use of nano-crystalline diamond further increases the frequency compared to single crystal silicon by a factor of three. High clamping losses usually associated with micron-sized straight beams are suppressed in the periodic geometry of our resonators, allowing for high quality factors exceeding 20,000 above 500 MHz.

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