Signal amplification in a nanomechanical Duffing resonator via stochastic resonance

Ronen Almog; Stav Zaitsev; Oleg Shtempluck; Eyal Buks

doi:10.1063/1.2430689

Signal amplification in a nanomechanical Duffing resonator via stochastic resonance

Ronen Almog, Stav Zaitsev, Oleg Shtempluck, Eyal Buks

Technion-Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

96 Scopus citations

Abstract

The authors experimentally study stochastic resonance in a nonlinear bistable nanomechanical doubly clamped beam resonator, which is capacitively excited by an adjacent gate electrode. The resonator is tuned to its bistability region by an intense pump near a point of equal transition rates between its two metastable states. The pump is amplitude modulated, inducing modulation of the activation barrier between the states. When noise is added to the excitation, resonator's displacement exhibits noise dependent amplification of the modulation signal. They measure resonator's response in the time and frequency domains, the spectral amplification, and the statistical distribution of the jump time.

Original language	English
Article number	013508
Journal	Applied Physics Letters
Volume	90
Issue number	1
DOIs	https://doi.org/10.1063/1.2430689
State	Published - 2007
Externally published	Yes

Bibliographical note

Funding Information:
This work is supported by the Israeli Ministry of Science, Intel Corp., Israel-US Binational Science Foundation, The Russell Berrie Nanotechnology Institute, and by Henry Gutwirth Foundation.

Funding

This work is supported by the Israeli Ministry of Science, Intel Corp., Israel-US Binational Science Foundation, The Russell Berrie Nanotechnology Institute, and by Henry Gutwirth Foundation.

Funders	Funder number
Henry Gutwirth Foundation
Intel Corp.
Israeli Ministry of Science
Russell Berrie Nanotechnology Institute
United States-Israel Binational Science Foundation

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abstract = "The authors experimentally study stochastic resonance in a nonlinear bistable nanomechanical doubly clamped beam resonator, which is capacitively excited by an adjacent gate electrode. The resonator is tuned to its bistability region by an intense pump near a point of equal transition rates between its two metastable states. The pump is amplitude modulated, inducing modulation of the activation barrier between the states. When noise is added to the excitation, resonator's displacement exhibits noise dependent amplification of the modulation signal. They measure resonator's response in the time and frequency domains, the spectral amplification, and the statistical distribution of the jump time.",

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AU - Zaitsev, Stav

AU - Shtempluck, Oleg

AU - Buks, Eyal

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Signal amplification in a nanomechanical Duffing resonator via stochastic resonance

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