Optomechanical Stochastic Resonance in a Macroscopic Torsion Oscillator

Abstract

Linear mechanical oscillators have been applied to measure very small forces, mostly with the help of noise suppression. In contrast, adding noise to non-linear oscillators can improve the measurement conditions. Here, this effect of stochastic resonance is demonstrated in a macroscopic torsion oscillator, for an optomechanical non-linear potential. The signal output is enhanced for a sub-threshold electronic signal. This non-linear oscillator serves as a model system for the enhancement of signal-to-noise ratio in high precision optomechanical experiments.

4 pages (double column), 3 figures

References in corpus (5)

• Coherent Signal Amplification in Bistable Nanomechanical Oscillators by Stochastic Resonance
• Optical dilution and feedback cooling of a gram-scale oscillator to 6.9 mK
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Cited by in corpus (8)

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• Phase Stochastic Resonance in a forced nano-electromechanical oscillator
• Stochastic resonance in a tristable optomechanical system
• Rotational cavity optomechanics
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• Coherent Control of Fano Resonances in a Macroscopic Four-Mirror Cavity
• Interference effect in the optomechanical stochastic resonance
• Vibrational resonance amplification in a thermo-optic optomechanical nanocavity