Noise-enabled precision measurements of a duffing nanomechanical resonator

We report quantitative measurements of the nonlinear response of a radio frequency mechanical resonator with a very high quality factor. We measure the noise-free transitions between the two basins of attraction that appear in the nonlinear regime, and find good agreement with theory. We measure the...

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Bibliographic Details
Published in:	Physical review letters Vol. 94; no. 15; pp. 156403.1 - 156403.4
Main Authors:	ALDRIDGE, J. S, CLELAND, A. N
Format:	Journal Article
Language:	English
Published:	Ridge, NY American Physical Society 22-04-2005
Subjects:	Exact sciences and technology Instruments, apparatus, components and techniques common to several branches of physics and astronomy Mechanical instruments, equipment and techniques Micromechanical devices and systems Physics Background noise Non linear effect Radiofrequency Activation energy Resonators Switching Nanomechanical resonator
Online Access:	Get full text
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Summary:	We report quantitative measurements of the nonlinear response of a radio frequency mechanical resonator with a very high quality factor. We measure the noise-free transitions between the two basins of attraction that appear in the nonlinear regime, and find good agreement with theory. We measure the transition rate response to controlled levels of white noise, and extract the basin activation energy. This allows us to obtain precise values for the relevant frequencies and the cubic nonlinearity in the Duffing oscillator, with applications to parametric sensing.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0031-9007 1079-7114
DOI:	10.1103/physrevlett.94.156403