Realization of Directional Amplification in a Microwave Optomechanical Device

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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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.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli034027
Sivut1-17
JulkaisuPhysical Review Applied
Vuosikerta11
Numero3
TilaJulkaistu - 12 maaliskuuta 2019
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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ID: 32803627