On the implementation of mode localization between physical and digital resonators

In the field of mass sensing, there is an ever growing interest in the development of ultrasensitive MEMS devices for agro-food, environment, safety or health. Within this context, mode localization in an array of coupled resonators has been studied and implemented for a few years due to its high sensitivity to mass perturbation. However, this phenomenon requires a few conditions often hard to gather mainly due to microfabrication flaws and the devices geometry. In this paper, we present a device able to generate mode localization using a single piezoelectric resonator connected in closed loop to a hardware that simulates in real time the other resonators. Its main strengths are its full tunability and adaptibility to the geometry of the resonators.