Intrinsic Kerr amplification for microwave electromechanics

Intrinsic Kerr amplification for microwave electromechanics

Electromechanical transduction gain of 21 dB is realized in a micro-cantilever resonant force sensor operated in the unresolved-sideband regime. Strain-dependent kinetic inductance weakly couples cantilever motion to a superconducting nonlinear resonant circuit. A single pump generates motional side...

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Veröffentlicht in:Applied physics letters 2024-06, Vol.124 (24)
Hauptverfasser: Scarano, Ermes, Arvidsson, Elisabet K., Roos, August K., Holmgren, Erik, Haviland, David B.
Format: Artikel
Sprache:eng
Schlagworte:
Amplification
Electromechanics
Four-wave mixing
Inductance
kerr nonlinearity
kinetic inductance
Material and Nano Physics
Material- och nanofysik
microwave resonators
parametric amplification
Sidebands
superconductivity
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Beschreibung
Zusammenfassung:Electromechanical transduction gain of 21 dB is realized in a micro-cantilever resonant force sensor operated in the unresolved-sideband regime. Strain-dependent kinetic inductance weakly couples cantilever motion to a superconducting nonlinear resonant circuit. A single pump generates motional sidebands and parametrically amplifies them via four-wave mixing. We study the gain and added noise, and we analyze potential benefits of this integrated amplification process in the context force sensitivity.
ISSN:0003-6951
1077-3118
1077-3118
DOI:10.1063/5.0201936