Coherent mechanical noise cancellation and cooperativity competition in optomechanical arrays

Abstract

Studying the interplay between multiple coupled mechanical resonators is a promising new direction in the field of optomechanics. Understanding the dynamics of the interaction can lead to rich new effects, such as enhanced coupling and multi-body physics. In particular, multi-resonator optomechanical systems allow for distinct dynamical effects due to the optical cavity coherently coupling mechanical resonators. Here, we study the mechanical response of two SiN membranes and a single optical mode, and find that the cavity induces a time delay between the local and cavity-transduced thermal noises experienced by the resonators. This results in an optomechanical phase lag that causes destructive interference, cancelling the mechanical thermal noise by up to 20 dB in a controllable fashion, matching our theoretical expectation. Based on the effective coupling between membranes, we further propose, derive and measure a collective effect, cooperativity competition on mechanical dissipation, whereby the linewidth of one resonator depends on the coupling efficiency (cooperativity) of the other resonator.

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Cited by in corpus (12)

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• Ultra-precision quantum sensing and measurement based on nonlinear hybrid optomechanical systems containing ultracold atoms or atomic Bose-Einstein condensate
• Homodyne coherent quantum noise cancellation in a hybrid optomechanical force sensor
• Quasibound states in the continuum in photonic-crystal-based optomechanical microcavities
• Long-range optomechanical interactions in SiN membrane arrays
• Optical Levitation of Arrays of Microspheres
• Observation of thermal acoustic modes of a droplet coupled to an optomechanical sensor
• Amplitude and phase noise in Two-membrane cavity optomechanics
• Generation of stable Gaussian cluster states in optomechanical systems with multifrequency drives
• Beating ringdowns of near-degenerate mechanical resonances
• Mechanical characterization of a membrane with an on-chip loss shield in a cryogenic environment
• Multimode Gaussian steady state engineering in optomechanical systems with a squeezed reservoir