Optomechanical ratchet resonators

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...

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Bibliographic Details
Published in:Science China. Physics, mechanics & astronomy mechanics & astronomy, 2022-03, Vol.65 (3), p.230311, Article 230311
Main Authors: Nie, Wenjie, Wang, Leqi, Wu, Yu, Chen, Aixi, Lan, Yueheng
Format: Article
Language:English
Subjects:
Astronomy
Classical and Continuum Physics
Design
Frequency spectrum
Lasers
Light
Observations and Techniques
Oscillators
Physics
Physics and Astronomy
Resonators
Symmetry
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Summary: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.
ISSN:1674-7348
1869-1927
DOI:10.1007/s11433-021-1831-y