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Vibrational resonance and antiresonance in a membrane-in-the-middle optomechanical system

Xin Fu, Shan Wu, Cuicui Li, Min Xie, Zhenglu Duan and Bixuan Fan

Chaos, Solitons & Fractals, 2025, vol. 199, issue P1

Abstract: We investigated the phenomena of VR and VAR in a membrane-in-the-middle optomechanical system driven by a coherent optical field, weak low-frequency mechanical signal, and strong high-frequency mechanical signal. The method of direct separation of fast and slow motions was used to derive an analytical expression for the response amplitude Q to the low-frequency signal, which was consistent with numerical simulations in the low-response regime. The numerical results demonstrated that the low-frequency signal was significantly amplified by the high-frequency signal via the VR mechanism. Furthermore, we numerically observed the emergence of VAR, which considerably suppressed the weak signal across a wide range of amplitudes of the high-frequency signal. These findings provide theoretical guidance for controlling the amplification and suppression of weak force signals in optomechanical systems, with potential applications in precision sensing and signal processing.

Keywords: Vibrational resonance; Vibrational antiresonance; Optomechanical systems; Signal amplification; Signal suppression (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:199:y:2025:i:p1:s0960077925006654

DOI: 10.1016/j.chaos.2025.116652

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