A low-frequency chip-scale optomechanical oscillator with 58 kHz mechanical stiffening and more than 100th-order stable harmonics

Huang, Yongjun; Flores, Jaime Gonzalo Flor; Cai, Ziqiang; Yu, Mingbin; Kwong, Dim‐Lee; Churchill, Layne; Wong, Chee Wei

doi:10.1038/s41598-017-04882-4

Cited by 8 publications

(1 citation statement)

References 40 publications

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“…Due to its high electrical and thermal conductivity, combined with thermal stability, mechanical strength, and chemical inertness, graphene has been considered for use in a variety of applications such as transistors [ 1 , 2 ], power detectors [ 3 ], mixers [ 4 ], low-noise amplifiers [ 5 ], frequency doublers [ 6 ], resonators [ 7 ], and sensors [ 8 ]. In addition, its relatively high transparency in the visible spectral range underlines its potential as a transparent electrode for optoelectronic devices, including light-emitting diodes and solar cells [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Electrical and Structural Characterization of Few-Layer Graphene Sheets on Quartz

et al. 2022

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Despite the impressive performance and incredible promise for a variety of applications, the wide-scale commercialization of graphene is still behind its full potential. One of the main challenges is related to preserving graphene’s unique properties upon transfer onto practically desirable substrates. In this work, few-layer graphene sheets deposited via liquid-phase transfer from copper onto a quartz substrate have been studied using a suite of experimental techniques, including scanning electron microscopy (SEM), Raman spectroscopy, admittance spectroscopy, and four-point probe electrical measurements. SEM measurements suggest that the transfer of graphene from copper foil to quartz using the aqueous solution of ammonium persulfate was accompanied by unintentional etching of the entire surface of the quartz substrate and, as a result, the formation of microscopic facet structures covering the etched surface of the substrate. As revealed by Raman spectroscopy and the electrical measurements, the transfer process involving the etching of the copper foil in a 0.1 M solution of (NH4)2S2O8 resulted in its p-type doping. This was accompanied by the appearance of an electronic gap of 0.022 eV, as evidenced by the Arrhenius analysis. The observed increase in the conductance of the samples with temperature can be explained by thermally activated carrier transport, dominating the scattering processes.

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Section: Introductionmentioning

confidence: 99%

Electrical and Structural Characterization of Few-Layer Graphene Sheets on Quartz

et al. 2022

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Parametrically Driven Inertial Sensing in Chip‐Scale Optomechanical Cavities at the Thermodynamical Limits with Extended Dynamic Range

Flores

Yerebakan

Wang

et al. 2023

Laser & Photonics Reviews

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Recent scientific and technological advances have enabled the detection of gravitational waves, autonomous driving, and the proposal of a communications network on the Moon (Lunar Internet or LunaNet). These efforts are based on the measurement of minute displacements and their corresponding force transduction, which enables acceleration, velocity, and position determination for navigation. State-of-the-art accelerometers use capacitive or piezoresistive techniques and micro-electromechanical systems (MEMS) via integrated circuit (IC) technologies to drive transducers and convert their output for electric readout. In recent years, laser optomechanical transduction and readout have enabled highly sensitive detection of motional displacement.Here the theoretical framework is further examined for the novel mechanical frequency readout technique of optomechanical transduction when the sensor is driven into oscillation mode. Theoretical and physical agreements are demonstrated, and the most relevant performance parameters are characterized by a device with a 1.5 mg Hz −1 acceleration sensitivity, a 2.5 fm Hz −1/2 displacement resolution corresponding to a 17.02 µg Hz −1/2 force-equivalent acceleration, and a 5.91 Hz nW −1 power sensitivity, at the thermodynamical limits. In addition, a novel technique is presented for dynamic range extension while maintaining the precision sensing sensitivity. This inertial accelerometer is integrated on-chip and enabled for packaging, with a laser-detuning-enabled approach.

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Multi-carrier broadband signal generation based on a mutually dual-domain mode-locked optoelectronic oscillator

Lin

Wang²,

Wang³

et al. 2023

Optics Communications

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A low-frequency chip-scale optomechanical oscillator with 58 kHz mechanical stiffening and more than 100th-order stable harmonics

Cited by 8 publications

References 40 publications

Electrical and Structural Characterization of Few-Layer Graphene Sheets on Quartz

Electrical and Structural Characterization of Few-Layer Graphene Sheets on Quartz

Parametrically Driven Inertial Sensing in Chip‐Scale Optomechanical Cavities at the Thermodynamical Limits with Extended Dynamic Range

Multi-carrier broadband signal generation based on a mutually dual-domain mode-locked optoelectronic oscillator

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