Two-membrane cavity optomechanics: non-linear dynamics
- URL: http://arxiv.org/abs/2009.04694v2
- Date: Tue, 13 Jul 2021 08:33:38 GMT
- Title: Two-membrane cavity optomechanics: non-linear dynamics
- Authors: Paolo Piergentili, Wenlin Li, Riccardo Natali, Nicola Malossi, David
Vitali, Giovanni Di Giuseppe
- Abstract summary: We study the non-linear dynamics of a multimode optomechanical system constituted of a driven high-finesse Fabry-P'erot cavity.
We find perfect agreement between the experimental results, the numerical simulations, and an analytical approach based on slowly-varying amplitude equations.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We study the non-linear dynamics of a multimode optomechanical system
constituted of a driven high-finesse Fabry-P\'erot cavity containing two
vibrating dielectric membranes. The analytical study allows to derive a full
and consistent description of the displacement detection by a probe beam in the
non-linear regime, enabling the faithful detection of membrane displacements
well above the usual sensing limit corresponding to the cavity linewidth. In
the weak driving regime where the system is in a pre-synchronized situation,
the unexcited oscillator has a small, synchronized component at the frequency
of the excited one; both large and small amplitude resonator motions are
transduced in a nontrivial way by the non-linear response of the optical probe
beam. We find perfect agreement between the experimental results, the numerical
simulations, and an analytical approach based on slowly-varying amplitude
equations.
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