Signal Amplification by 1/f Noise in Silicon-Based Nanomechanical Resonators
- 17 August 2009
- journal article
- letter
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 9 (9) , 3096-3099
- https://doi.org/10.1021/nl9004546
Abstract
We report signal amplification by 1/f(alpha) noise with stochastic resonance in a nonlinear nanomechanical resonator. The addition of 1/f(alpha) noise to a subthreshold modulation signal enhances the probability of an electrostatically driven resonator switching between its two vibrational states in the hysteretic region. Considering the prevalence of 1/f noise in the materials in integrated circuits, signal enhancement demonstrated here, using a fully on-chip electronic actuation/detection scheme, suggests beneficial use of the otherwise detrimental noise.Keywords
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