A Novel Architecture for room temperature microwave optomechanical experiments

TL;DR

This paper introduces a new room temperature microwave cavity optomechanical system coupling a 3D reentrant cavity with a membrane, enabling thermomechanical motion detection and optomechanically induced transparency observation.

Contribution

The work presents a novel architecture for room temperature microwave optomechanics with comprehensive system characterization and multiple measurement techniques for coupling rate estimation.

Findings

Resolved thermomechanical motion of the membrane

Observed optomechanically induced transparency at room temperature

Extracted single photon coupling rate using four methods

Abstract

We have developed a novel architecture for room temperature microwave cavity optomechanics, which is based on the coupling of a 3D microwave reentrant cavity to a compliant membrane. Devices parameters have enabled resolving the thermomechanical motion of the membrane, and observing optomechanically induced transparency/absorption in the linear regime, for the first time in a microwave optomechanical system operated at room temperature. We have extracted the single photon coupling rate (g0) using four independent measurement techniques, and hence obtain a full characterization of the proposed cavity optomechanical system.