Optomechanical ratchet resonators |
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作者姓名: | Wenjie Nie Leqi Wang Yu Wu Aixi Chen Yueheng Lan |
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作者单位: | Department of Applied Physics;Department of Physics;Department of Physics |
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基金项目: | supported by the National Natural Science Foundation of China(Grant No.12065008);the Key Project of Youth Science Foundation of Jiangxi Province(Grant No.20192ACBL21001);the Outstanding Youth Project of Jiangxi Province(Grant No.20192BCBL23007);supported by the National Natural Science Foundation of China(Grant No.11775190);supported by the National Natural Science Foundation of China(Grant No.11775035)。 |
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摘 要: | We describe an optomechanical ratchet scheme to realize nonreciprocal transmission of a light field, which is based on the bias of the optical cavity’s frequency spectrum caused by mechanical ratchet interactions. This approach to break the time-reversal symmetry of light propagation is universally valid in various optomechanical systems with ratchet-oscillator structures. We discuss specifically the implementation of an on-chip Casimir-ratchet optomechanical protocol and demonstrate the optical nonreciprocity with an extremely high isolation ratio and flexible controllability, which does not require external additional optical engineering. Our study opens a door for manipulating flexibly light propagation by using mechanical ratchet resonators, and has potential applications in the on-chip integration of nonreciprocal devices and harness of lateral Casimir forces.
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关 键 词: | OPTOMECHANICS nonreciprocal transmission Casimir effect ratchet effect |
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