Realization of Directional Amplification in a Microwave Optomechanical Device
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2019-03-12
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en
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17
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Physical Review Applied, Volume 11, issue 3, pp. 1-17
Abstract
Directional transmission or amplification of microwave signals is indispensable in various applications involving sensitive measurements. In this work we show experimentally how to use a generic cavity optomechanical setup to nonreciprocally amplify microwave signals above 3 GHz in one direction by 9 dB and simultaneously attenuate the transmission in the opposite direction by 21 dB. We use a device including two on-chip superconducting resonators and two metallic drumhead mechanical oscillators. Application of four microwave pump-tone frequencies allows the design of constructive or destructive interference for a signal tone depending on the propagation direction. The device can also be configured as an isolator with lossless nonreciprocal transmission and 18 dB of isolation.Description
| openaire: EC/FP7/615755/EU//CAVITYQPD | openaire: EC/H2020/732894/EU//HOT
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Mercier de Lepinay, L, Damskägg, E, Ockeloen-Korppi, C F & Sillanpää, M A 2019, ' Realization of Directional Amplification in a Microwave Optomechanical Device ', Physical Review Applied, vol. 11, no. 3, 034027, pp. 1-17 . https://doi.org/10.1103/PhysRevApplied.11.034027