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Amir Hossein Ghadimi

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Related publications (11)

Please note that this is not a complete list of this person’s publications. It includes only semantically relevant works. For a full list, please refer to Infoscience.

Ultralow Dissipation Mechanical Resonators for Quantum Optomechanics

Tobias Kippenberg, Alberto Beccari, Dalziel Joseph Wilson, Sergey Fedorov, Nils Johan Engelsen, Ryan Daniel Schilling, Amir Hossein Ghadimi

We demonstrate dissipation dilution engineering techniques for ultralow dissipation mechanical resonators. The Si3N4 nanobeams show quality factors (Q) as high as 800 million and Q x f exceeding 10(15) Hz-both records at room temperature. (C) 2019 The Auth ...

IEEE2019

Generalized dissipation dilution in strained mechanical resonators

Tobias Kippenberg, Dalziel Joseph Wilson, Nils Johan Engelsen, Sergey Fedorov, Ryan Daniel Schilling, Amir Hossein Ghadimi

Mechanical resonators with high quality factors are widely used in precision experiments, ranging from gravitational wave detection and force sensing to quantum optomechanics. Beams and membranes are well known to exhibit flexural modes with enhanced quali ...

AMER PHYSICAL SOC2019

Clamp-Tapering Increases the Quality Factor of Stressed Nanobeams

Tobias Kippenberg, Alberto Beccari, Dalziel Joseph Wilson, Nils Johan Engelsen, Sergey Fedorov, Ryan Daniel Schilling, Amir Hossein Ghadimi

Stressed nanomechanical resonators are known to have exceptionally high quality factors (Q) due to the dilution of intrinsic dissipation by stress. Typically, the amount of dissipation dilution and thus the resonator Q is limited by the high mode curvature ...

AMER CHEMICAL SOC2019