Nonlinear electromechanical resonators ~ from phonon lasing operation to nanomechanical processors

Abstract

We will review our recent activities on GaAs/AIGaAs electromechanical parametric resonators. Piezoelectric transduction allows us to electrically modulate the resonance frequency, providing an on-chip testbed for nonlinear phononics experiments. Both degenerate and non degenerate parametric amplification, as well as the excitation of parametric resonance, are perfonned for single and multi-mode resonators. We demonstrate several nonlinear phenomenon, including phonon lasing, coherent control, phonon propagation switching, and electromechanical signal processing.

Parametric transformer using PM‐inductors with saturation‐gap

“…11b. According to (2), the area of the inductance L 2 I 2 and current I 2 product, is equivalent to increment in secondary flux linkage, Δλ 2 I 1 . Since N 1 = N 2 , and combining (20), (24) and (2), the product of Δλ 2 I 1 and I L , can be used to calculate the transferable energy from the primary to secondary inductances, W 1 − 2 :…”

“…One of the earliest scientific studies on the subject of parametric oscillations dates back to the experiments of Faraday (1831), on the surface waves produced in a liquid by synchronous vertical displacement of the container [1]. The phenomena of parametric oscillations have found extensive application in the fields of lasers and microwaves technologies [2, 3]. On the other hand, only a small number of applications has been found in the field of power electronics.…”