Optomechanically induced transparency in a spinning resonator

Lü, Hao; Jiang, Yuzhu; Wang, Yuzhu; Jing, Hui

doi:10.1364/prj.5.000367

Cited by 102 publications

(52 citation statements)

References 49 publications

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“…Before ending this section, we remark that one mechanical mode coupling to WGC optical modes has been demonstrated experimentally [ 52–55 ] and extended to that containing the optical Sagnac effect. [ 56–58 ] The present work continues the investigation on this topic and focus on the aspect of its nonreciprocal quantum property.…”

Section: Nonreciprocal Mechanical Squeezingmentioning

confidence: 90%

Nonreciprocal Mechanical Squeezing in a Spinning Optomechanical System

et al. 2020

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A scheme for nonreciprocal mechanical squeezing (NMS) based on the three‐mode optomechanical interaction is proposed. In this scheme, a mechanical mode couples to a spinning whispering‐gallery‐cavity (WGC) mode and to an optical mode. An external laser is coupled into and thus drives the WGC via a waveguide. Mechanical squeezing results from the joint effect of the mechanical intrinsic nonlinearity and the quadratic optomechanical coupling, which, in the presence of strong thermal noise, is still considerable, while the nonreciprocity originates from the optical Sagnac effect. There are two NMS areas in the parametric space, one works for the laser driving from the left of the waveguide and another, from the right. For a given spinning speed of the WGC, the squeezing values in these two areas are equal if the corresponding detunings of the WGC differ from each other by two‐times of the Sagnac–Fizeau shift. At the red‐detuning resonance, the analytical results for the mechanical squeezing and cooling are obtained. The NMS scheme is robust to the thermal noise of the mechanical environment.

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Section: Nonreciprocal Mechanical Squeezingmentioning

confidence: 90%

Nonreciprocal Mechanical Squeezing in a Spinning Optomechanical System

et al. 2020

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“…In a spinning resonator, the CW or CCW optical mode experiences different refractive indices [70], i.e., n ± = n[1 ± r 2 Ω(n −2 − 1)/c], where n and r 2 denote, respectively, the refractive index and the radius of the resonator, and c is the speed of light in vacuum. As a result, the frequencies of the CW and CCW modes of the resonator experience Sagnac-Fizeau shifts [78,79]. For light propagating in the same, or opposite, direction of the spinning resonator, we have…”

Section: Model and Solutionsmentioning

confidence: 99%

Nonreciprocal Phonon Laser

et al. 2018

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We propose nonreciprocal phonon lasing in a coupled cavity system composed of an optomechanical and a spinning resonator. We show that the optical Sagnac effect leads to significant modifications in both the mechanical gain and the power threshold for phonon lasing. More importantly, the phonon lasing in this system is unidirectional, that is the phonon lasing takes place when the coupled system is driven in one direction but not the other. Our work establishes the potential of spinning optomechanical devices for low-power mechanical isolation and unidirectional amplification. This provides a new route, well within the reach of current experimental abilities, to operate cavity optomechanical devices for such a wide range of applications as directional phonon switches, invisible sound sensing, and topological or chiral acoustics.

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“…Recently novel avenues to achieve nonreciprocity of electromagnetic fields without magnets but using new scattering effects and a new class of materials and metamaterials have been implemented. [ 16–21 ] The examples include dynamic spatiotemporal modulation of parameters, [ 22–25 ] synthetic magnetic field, [ 25–27 ] angular momentum biasing in photonic or acoustic systems, [ 21,28,29 ] nonlinearity, [ 30–33 ] interband photonic transitions, [ 34,35 ] optomechanics, [ 36–40 ] optoacoustics, [ 41,42 ] parity‐time (PT)‐symmetry breaking, [ 43–45 ] unidirectional gain and loss, [ 46–53 ] moving/rotating cavities [ 54–56 ] and emitters, [ 57 ] Doppler‐shift, [ 58 ] chiral light‐matter coupling and valley polarization, [ 59–63 ] and quantum nonlinearity. [ 64–67 ] Furthermore, quantum systems based on superconducting Josephson junctions attract much attention as they hold a great promise for quantum computing.…”

Section: Introductionmentioning

confidence: 99%

Up‐And‐Coming Advances in Optical and Microwave Nonreciprocity: From Classical to Quantum Realm

Kutsaev

Krasnok

Romanenko

et al. 2021

Advanced Photonics Research

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Reciprocity is a fundamental physical principle that roots in the time‐reversal symmetry of physical laws. It allows making predictions on any arbitrary complex system's response and operation and hence simplifies the analysis. However, there are many practical situations in which it is advantageous to break reciprocity, e.g., isolators preventing wave scattering back to lasers and generators, full‐duplex systems for multiplexing transmission and receiving in the same channel, nonreciprocal cavity excitation, and protection of fragile states of superconductor quantum computers from thermal noise. The most widespread approach to time‐reversal symmetry breaking and nonreciprocity based on magnetic field biasing suffers from bulkiness, cost ineffectiveness, and loss, motivating researchers and engineers to search for more practical approaches. Herein, the up‐and‐coming advances in optical nonreciprocity, including new materials (Weyl semimetals, topological insulators, metasurfaces), active structures, time‐modulation, parity‐time (PT)‐symmetry breaking, nonlinearity combined with a structural asymmetry, quantum nonlinearity, unidirectional gain and loss, chiral quantum states and valley polarization are overviewed. A general description of nonreciprocal systems is provided and the pros and cons of the mentioned approaches to nonreciprocity are discussed.

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Optomechanically induced transparency in a spinning resonator

Cited by 102 publications

References 49 publications

Nonreciprocal Mechanical Squeezing in a Spinning Optomechanical System

Nonreciprocal Mechanical Squeezing in a Spinning Optomechanical System

Nonreciprocal Phonon Laser

Up‐And‐Coming Advances in Optical and Microwave Nonreciprocity: From Classical to Quantum Realm

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