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arXiv · 2103.06178

Room temperature cavity electromechanics in the sideband-resolved regime

Anh Tuan Le·Alexandre Brieusssel·Eva Maria Weig
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Abstract

We demonstrate a sideband-resolved cavity electromechanical system operating at room temperature. The mechanical resonator, a strongly pre-stressed silicon nitride string, is 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.

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Anh Tuan Le, Alexandre Brieusssel, Eva Maria Weig. 2021-03-10. Room temperature cavity electromechanics in the sideband-resolved regime. https://doi.org/10.1063/5.0054965

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