Weak signal enhancement by nonlinear resonance control in a forced nano-electromechanical resonator

Chowdhury, Avishek; Clerc, Marcel G.; Barbay, Sylvain; Robert-Philip, I.; Braive, Rémy

doi:10.1038/s41467-020-15827-3

Cited by 50 publications

(25 citation statements)

References 38 publications

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“…Introducing an additional control light and setting its detuning to a finite value might make it possible to tunably adjust the softening and hardening effects like the optical spring effects can be 11 . Such an optically tunable Duffing nonlinearity could be used for sensing applications of nanomechanical resonators 29,30 .…”

Section: Resultsmentioning

confidence: 99%

Near-field cavity optomechanical coupling in a compound semiconductor nanowire

et al. 2020

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A III-V compound semiconductor nanowire is an attractive material for a novel hybrid quantum interface that interconnects photons, electrons, and phonons through a wavelength-tunable quantum structure embedded in its free-standing structure. In such a nanomechanical element, however, a challenge is how to detect and manipulate a small number of phonons via its tiny mechanical motion. A solution would be to couple an optical cavity to a nanowire by introducing the ‘cavity optomechanics' framework, but the typical size difference between them becomes a barrier to achieving this. Here, we demonstrate near-field coupling of a silica microsphere cavity and an epitaxially grown InP/InAs free-standing nanowire. The evanescent optomechanical coupling enables not only fine probing of the nanowire’s mechanical motion by balanced homodyne interferometry but also tuning of the resonance frequency, linewidth, Duffing nonlinearity, and vibration axis in it. Combining this cavity optomechanics with epitaxial nanowire engineering opens the way to novel quantum metrology and information processing.

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Section: Resultsmentioning

confidence: 99%

Near-field cavity optomechanical coupling in a compound semiconductor nanowire

et al. 2020

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“…where "A" represents the resonance amplitude which is relevant to angle frequency ω, and θ represents the phase difference in relation to the power supply [27], [28]. The response amplitude "A" as a function of power supply frequency can be gotten from…”

Section: The Backgroung and Characteristics Of The Duffing Resonatormentioning

confidence: 99%

Bandwidth Enhancement for Wireless Power Transfer System Employing Non-Linear Resonator

Jiao

Fan

et al. 2021

IEEE Access

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In order to enhance the tolerance of frequency misalignment and solve the amplitudebandwidth limitation issue of the traditional linear resonance wireless power transfer (WPT) system, this paper proposes a non-linear resonance WPT (NLR-WPT) system which is mainly composed of high frequency power supply, primary linear resonator, secondary non-linear resonator, and load. Such non-linear resonator can be implemented with passive linear capacitor and magnetic saturation inductor, and it can be described by Duffing equation. It has been shown that the bandwidth of NLR-WPT system in the nonlinear state is 1.7 times larger than that in the linear state. In addition, the output voltage basically stabilizes at the same level, the voltage fluctuation is less than 5% over the power frequency ranging from 25.6 kHz to 31.8 kHz, and high overall efficiency of 86.5% can be achieved under a wide range of frequency (27.5 kHz-30.1 kHz). Furthermore, the range of frequency can be extended significantly over which the output voltage is maintained even while the compensate capacitance, load, or coupling coefficient values vary in a certain range. The experimental results agree well with the theoretical analysis and verify the validity of the NLR-WPT system with non-linear resonator. This paper provides a simple and effective scheme to suppress the fluctuation of output voltage, which is suitable for the applications of constant voltage charging such as moving devices or electric vehicles.INDEX TERMS Wireless power transfer (WPT), bandwidth enhancement, stable output voltage, non-linear resonance, magnetic saturation inductor, Duffing equation.

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“…Introducing an additional control light and setting its detuning to a finite value might make it possible to tunably adjust the softening and hardening effects like the optical spring effects can be [11]. Such an optically tunable Duffing nonlinearity could be used for sensing applications of nanomechanical resonators [28,29].…”

Section: Control Of Mechanical Responses Via Static Optical Forcesmentioning

confidence: 99%

Near-field cavity optomechanical coupling in a compound semiconductor nanowire

Asano

Zhang²,

Tawara³

et al. 2020

Preprint

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A III-V compound semiconductor nanowire is an attractive material for a novel hybrid quantum interface that interconnects photons, electrons, and phonons through a wavelength-tunable quantum structure embedded in its free-standing structure. In such a nanomechanical element, however, a challenge is how to detect and manipulate a small number of phonons via its tiny mechanical motion. A solution would be to couple an optical cavity to a nanowire by introducing the "cavity optomechanics" framework, but the typical size difference between them becomes a barrier to achieving this. Here, we demonstrate near-field coupling of a silica microsphere cavity and an epitaxially grown InP/InAs free-standing nanowire. The evanescent optomechanical coupling enables not only fine probing of the mechanical motion by balanced homodyne interferometry but also tuning of the resonance frequency, linewidth, Duffing nonlinearity, and vibration axis in the nanowire. Combining this cavity optomechanics with epitaxial nanowire engineering opens the way to novel quantum metrology and information processing.

show abstract

Weak signal enhancement by nonlinear resonance control in a forced nano-electromechanical resonator

Cited by 50 publications

References 38 publications

Near-field cavity optomechanical coupling in a compound semiconductor nanowire

Near-field cavity optomechanical coupling in a compound semiconductor nanowire

Bandwidth Enhancement for Wireless Power Transfer System Employing Non-Linear Resonator

Near-field cavity optomechanical coupling in a compound semiconductor nanowire

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