An opto-electro-mechanical system based on evanescently-coupled optical microbottle and electromechanical resonator

TL;DR

This paper demonstrates evanescent coupling between a silica microbottle resonator and a GaAs electromechanical resonator, enabling high sensitivity and controllability of mechanical motion through opto-electro-mechanical feedback at room temperature.

Contribution

It introduces a novel coupling scheme between optical and electromechanical resonators, enabling efficient control of mechanical motion using feedback at room temperature.

Findings

High optical sensitivity achieved

Effective piezoelectric control demonstrated

Room temperature opto-electro-mechanical feedback implemented

Abstract

Evanescent coupling between a silica optical microbottle resonator and a GaAs electromechanical resonator is demonstrated. This coupling provides high optical sensitivity and efficient piezoelectric controllability of mechanical motion. Opto-electro-mechanical feedback control based on optomechanical detection and electromechanical control is performed in both heating and cooling regimes at room temperature. This feedback scheme can be extended to the efficient control of thermal mechanical motion in electromechanical resonators with arbitrary structures and materials.