[Invited] Modelling of coupled nanoelectromechanical resonators, analogies with optomechanical systems - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2023

[Invited] Modelling of coupled nanoelectromechanical resonators, analogies with optomechanical systems

Résumé

Coupled nanoelectromechanical resonators are interesting because information carried by phonons can be transferred between mechanical modes and also filtered in different frequency bands by controlling the energy transfer [1-2]. Most previous investigations have been based on mechanical coupling through the use of mechanical nonlinearity, which limits the resonant frequency and flexible tunability of the integration. Here, we will present our recent achievements in developing a novel nanoelectromechanical system, consisting of a capacitive coupling of two distinct resonators: a silicon nitride drum resonator and an aluminium resonator [3-4]. The whole device structure can be considered as a parallel plate capacitor, where each plate is a membrane drum. Integrated with a versatile platform consisting of microwave reflectometry and a microwave cavity, both resonators can be manipulated and detected independently.Taking advantage of the non-linearity arising from capacitive coupling, we first investigated phonon-cavity electromechanics, using the silicon nitride drum as a phonon cavity and performing double-tone operations through an analogue of a microwave optomechanical system. [4]. This is quite different from conventional optomechanical systems where the mechanical damping rate is usually much smaller than that of the coupled cavity. Electromechanically induced transparency and amplification of the input signals have been demonstrated by sideband pumping of the phonon-cavity. This unique coupled system gives access to the observation of the phonon-cavity force, affecting the mechanical damping rate of both movable objects. Secondly, we explore a three-tone operation scheme by pumping the phonon-cavity atits blue and red sidebands at the same time and using the third tone to probe either the cavity or the coupled Al drum, in analogy with the back-action evading scheme in optomechanics. We have observed phase sensitive parametric amplification in this double pump scheme. Besides, destructive interferences between the probe signal and these phonons generated by the double-pump tones were also been observed. These measurement results are in good agreement with our analytical calculations based onnonlinear capacitive coupling model. Our results open up new possibilities for the study of phonon-cavity based signal processing in the classical and potentially in the future in the quantum regime. Besides, this kind of device will offer more degrees of freedom in routing propagation of photons and phonons in microwave optomechanical circuits
Fichier non déposé

Dates et versions

Identifiants

  • HAL Id : hal-04182893 , version 1

Citer

Xin Zhou. [Invited] Modelling of coupled nanoelectromechanical resonators, analogies with optomechanical systems. Nonlinear Micro/Nanosystems Symposium, May 2023, Grenoble, France. ⟨hal-04182893⟩
36 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More