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A self-sustaining ultrahigh-frequency nanoelectromechanical oscillator

Feng, X. L. and White, C. J. and Hajimiri, A. and Roukes, M. L. (2008) A self-sustaining ultrahigh-frequency nanoelectromechanical oscillator. Nature Nanotechnology, 3 (6). pp. 342-346. ISSN 1748-3387. doi:10.1038/nnano.2008.125.

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Sensors based on nanoelectromechanical systems vibrating at high and ultrahigh frequencies are capable of levels of performance that surpass those of larger sensors. Nanoelectromechanical devices have achieved unprecedented sensitivity in the detection of displacement, mass, force and charge. To date, these milestones have been achieved with passive devices that require external periodic or impulsive stimuli to excite them into resonance. Here, we demonstrate an autonomous and self-sustaining nanoelectromechanical oscillator that generates continuous ultrahigh-frequency signals when powered by a steady d.c. source. The frequency-determining element in the oscillator is a 428 MHz nanoelectromechanical resonator that is embedded within a tunable electrical feedback network to generate active and stable self-oscillation. Our prototype nanoelectromechanical oscillator exhibits excellent frequency stability, linewidth narrowing and low phase noise performance. Such ultrahigh-frequency oscillators provide a comparatively simple means for implementing a wide variety of practical sensing applications. They also offer intriguing opportunities for nanomechanical frequency control, timing and synchronization.

Item Type:Article
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URLURL TypeDescription ReadCube access
Hajimiri, A.0000-0001-6736-8019
Roukes, M. L.0000-0002-2916-6026
Additional Information:© 2008 Nature Publishing Group. Received: 14 February 2008; Accepted: 16 April 2008; Published online: 25 May 2008. We thank C.T.C. Nguyen, J.R. Vig, M.C. Cross and R. Lifshitz for helpful discussions. We thank M. Mehregany and C.A. Zorman for providing SiC material. We acknowledge support from DARPA/SPAWAR under grant N66001-02-1-8914.
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)N66001-02-1-8914
Issue or Number:6
Record Number:CaltechAUTHORS:20171103-120941255
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Official Citation:A self-sustaining ultrahigh-frequency nanoelectromechanical oscillator. X. L. Feng, C. J. White, A. Hajimiri & M. L. Roukes. Nature Nanotechnology 3, 342 - 346 (2008) Published online: 25 May 2008. doi:10.1038/nnano.2008.125
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:82936
Deposited By: Tony Diaz
Deposited On:03 Nov 2017 20:02
Last Modified:15 Nov 2021 19:54

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