期刊
PHYSICAL REVIEW APPLIED
卷 11, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.11.034027
关键词
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资金
- Academy of Finland [250280, 308290, 307757, 312296]
- European Research Council [615755]
- Aalto Centre for Quantum Engineering
- EU Horizon 2020 research and innovation program [732894]
- Academy of Finland (AKA) [312296, 308290, 307757, 312296, 308290, 307757] Funding Source: Academy of Finland (AKA)
- European Research Council (ERC) [615755] Funding Source: European Research Council (ERC)
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.
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