The mechanical resonances of electrostatically coupled nanocantilevers

Perisanu, S.; Barois, Thomas; Poncharal, Philippe; Gaillard, T.; Ayari, A.; Purcell, Stephen T.; Vincent, P.

doi:10.1063/1.3553779

Cited by 15 publications

(10 citation statements)

References 17 publications

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“…are not known. Such CNTs could also be electrostatically coupled 19 to increase the demodulated current and increase the S/N ratio. Since the coupling between the excitation electrode and the CNT must be as asymmetric as possible for efficiency, an interesting configuration is the one presented in Fig.…”

Section: Discussionmentioning

confidence: 99%

Performance of field-emitting resonating carbon nanotubes as radio-frequency demodulators

Vincent

Poncharal²,

Barois³

et al. 2011

Phys. Rev. B

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International audienceWe report on a systematic study of the use of resonating nanotubes in a field emission (FE) configuration to demodulate radio frequency signals. We particularly concentrate on how the demodulation depends on the variation of the field amplification factor during resonance. Analytical formulas describing the demodulation are derived as functions of the system parameters. Experiments using AM and FM demodulations in a transmission electron microscope are also presented with a determination of all the pertinent experimental parameters. Finally we discuss the use of CNTs undergoing FE as nanoantennae and the different geometries that could be used for optimization and implementation. © 2011 American Physical Society

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Section: Discussionmentioning

confidence: 99%

Performance of field-emitting resonating carbon nanotubes as radio-frequency demodulators

Vincent

Poncharal²,

Barois³

et al. 2011

Phys. Rev. B

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“…We estimate the effective mass from the dimensions of the samples from SEM images (see Fig. 1 for sample 1) the SiC density (3200 kg/m 3 ) and first mode correction coefficient of 0.25 4,22 . The resonant frequency obtained from figure 2(b) near the self-oscillation experimental threshold gives ω 0 .…”

Section: Comparison Between the Model And The Experimentsmentioning

confidence: 99%

Role of fluctuations and nonlinearities on field emission nanomechanical self-oscillators

et al. 2013

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A theoretical and experimental description of the threshold, amplitude and stability of a selfoscillating nanowire in a field emission configuration is presented. Two thresholds for the onset of self-oscillation are identified, one induced by fluctuations of the electromagnetic environment and a second revealed by these fluctuations by measuring the probability density function of the current.The AC and DC components of the current and the phase stability are quantified. An AC to DC ratio above 100% and an Allan deviation of 1.3·10 −5 at room temperature can be attained. Finally it is shown that a simple non-linear model cannot describe the equilibrium effective potential in the self-oscillating regime due to the high amplitude of oscillations.

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“…A first step in this direction was made in an experiment where the coupling between two vibrating nanotubes was studied by gluing several nanotubes on a tip and by imaging them in a transmission electron microscope. 17 However, it is important to develop coupled vibrational structures with a well-defined layout in order to enable such experiments as the study of nonlinear dynamics, the manipulation of mechanical states, and quantum non-demolition measurements. The challenge presented by the fabrication of such structures is that nanotubes and graphene cannot be structured as easily as other materials.…”

Section: Introductionmentioning

confidence: 99%

Controlled assembly of graphene sheets and nanotubes: Fabrication of suspended multi-element all-carbon vibrational structures

Tsioutsios

Moser

Plaza

et al. 2013

Journal of Applied Physics

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We report on the fabrication and operation of a multi-element vibrational structure consisting of two graphene mechanical resonators coupled by a nanotube beam. The whole structure is suspended. Each graphene resonator is clamped by two metal electrodes. The structure is fabricated using a combination of electron-beam lithography and atomic-force microscopy nanomanipulation. This layout allows us to detect the mechanical vibrations electrically. The measured eigenmodes are localized in either one of the graphene resonators. The coupling due to the nanotube is studied by measuring the shift of the resonance frequency of one graphene resonator as a function of the vibration amplitude of the other resonator. Coupled graphene resonators hold promise for the study of nonlinear dynamics, the manipulation of mechanical states, and quantum non-demolition measurements. *adrian.bachtold@icfo.es

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The mechanical resonances of electrostatically coupled nanocantilevers

Cited by 15 publications

References 17 publications

Performance of field-emitting resonating carbon nanotubes as radio-frequency demodulators

Performance of field-emitting resonating carbon nanotubes as radio-frequency demodulators

Role of fluctuations and nonlinearities on field emission nanomechanical self-oscillators

Controlled assembly of graphene sheets and nanotubes: Fabrication of suspended multi-element all-carbon vibrational structures

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