2021/03/31 by Anh Tuan Le, A. Brieussel, Alexandre Brieusssel +2 · 3 citations
Engineering · Physics and Astronomy · #Coupling (piping) #Dielectric #Electromechanics #Field (mathematics) #Force Microscopy Techniques and Applications #Mechanical and Optical Resonators #Microwave #Microwave cavity #Resonator #Silicon #Silicon nitride #Thermoelastic and Magnetoelastic Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1063/5.0054965
published in Journal of Applied Physics 130(1) (American Institute of Physics)
openalex created_date 2021/03/15 · openalex publication_date 2021/07/06 · arxiv created 2021/07/09 · arxiv updated 2021/07/13 · openalex updated_date 2026/08/06
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.