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Proceedings Paper

Activated switching between two driven oscillation states in a nonlinear micromechanical oscillator
Author(s): H. B. Chan; C. Stambaugh
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Paper Abstract

We present measurements of noise induced switching for a system far from equilibrium. The system under study is an underdamped micromechanical torsional oscillator driven into the nonlinear regime. Under a sufficiently large periodic driving field, the oscillator has two stable dynamical states with different oscillation amplitudes within a certain range of driving frequencies. We induce the oscillator to escape from one dynamical state into the other by introducing noise in the excitation. By measuring the rate of random transitions as a function of noise intensity, we demonstrate the activated behavior of escape from the high-amplitude state to the low-amplitude state.

Paper Details

Date Published: 23 May 2005
PDF: 7 pages
Proc. SPIE 5846, Noise and Information in Nanoelectronics, Sensors, and Standards III, (23 May 2005); doi: 10.1117/12.611829
Show Author Affiliations
H. B. Chan, Univ. of Florida (United States)
C. Stambaugh, Univ. of Florida (United States)

Published in SPIE Proceedings Vol. 5846:
Noise and Information in Nanoelectronics, Sensors, and Standards III
Janos A. Bergou; Janusz M. Smulko; Mark I. Dykman; Lijun Wang, Editor(s)

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