Abstract
We demonstrate a sideband-resolved cavity electromechanical system operating at room temperature. It consists of a nanomechanical resonator, a strongly pre-stressed silicon nitride string, dielectrically coupled to a three-dimensional microwave cavity made of copper. The electromechanical coupling is characterized by two measurements, the cavity-induced eigenfrequency shift of the mechanical resonator and the optomechanically induced transparency. While the former is dominated by dielectric effects, the latter reveals a clear signature of the dynamical backaction of the cavity field on the resonator. This unlocks the field of cavity electromechanics for room temperature applications.
| Original language | English |
|---|---|
| Article number | 014301 |
| Journal | Journal of Applied Physics |
| Volume | 130 |
| Issue number | 1 |
| DOIs | |
| State | Published - 7 Jul 2021 |