112 citations · 498 across the 14 of their papers we have counts for
14 papers
Amplitude stabilization in a synchronized nonlinear nanomechanical oscillator
Martial Defoort, Sébastien Hentz, Steven W. Shaw +1
In contrast to the well-known phenomenon of frequency stabilization in a synchronized noisy nonlinear oscillator, little is known about its amplitude stability. In this paper, we i…
A dynamical approach to generate chaos in a micromechanical resonator
Martial Defoort, Libor Rufer, Laurent Fesquet +1
Chaotic systems, presenting complex and non-reproducible dynamics, may be found in nature from the interaction between planets to the evolution of the weather, but can also be tail…
Optomechanical mass spectrometry
Marc Sansa, Martial Defoort, Ariel Brenac +8
It has been demonstrated in the recent years that nanomechanical mass spectrometry was well suited for the analysis of specific high mass species such as viruses. Still, the exclus…
Charge-independent mass spectrometry of single virus capsids above 100MDa with nanomechanical resonators
Sergio Dominguez-Medina, Shawn Fostner, Martial Defoort +10
Most technologies, including conventional mass spectrometry, struggle to measure the mass of particles in the MDa to GDa range. Although this mass range appears optimal for nanomec…
Single-particle Mass Spectrometry with arrays of frequency-addressed nanomechanical resonators
Eric Sage, Marc Sansa, Shawn Fostner +12
One of the main challenges to overcome to perform nanomechanical Mass Spectrometry (NEMS-MS) analysis in a practical time frame stems from the size mismatch between the analyte bea…
Non-linear Frequency Transduction of Nano-mechanical Brownian Motion
Olivier Maillet, Xin Zhou, Rasul Gazizulin +4
We report on experiments addressing the non-linear interaction between a nano-mechanical mode and position fluctuations. The Duffing non-linearity transduces the Brownian motion of…
Slippage and boundary layer probed in an almost-ideal gas by a nano-mechanical oscillator
M. Defoort, K. J. Lulla, T. Crozes +3
We have measured the interaction between He gas at 4.2K and a high-quality nano-electro-mechanical string device for its first 3 symmetric modes (resonating at 2.2MHz, 6.…
Probing Bogoliubov quasiparticles in superfluid He with a 'vibrating-wire like' MEMS device
M. Defoort, S. Dufresnes, S. L. Ahlstrom +11
We have measured the interaction between superfluid He-B and a micro-machined goalpost-shaped device at temperatures below . The measured damping follows well the the…
In-situ comprehensive calibration of a tri-port nano-electro-mechanical device
E. Collin, M. Defoort, K. Lulla +5
We report on experiments performed in vacuum and at cryogenic temperatures on a tri-port nano-electro-mechanical (NEMS) device. One port is a very non-linear capacitive actuation,…
Modal "self-coupling" as a sensitive probe for nanomechanical detection
M. Defoort, K. J. Lulla, C. Blanc +3
We present a high-sensitivity measurement technique for mechanical nanoresonators. Due to intrinsic nonlinear effects, different flexural modes of a nanobeam can be coupled while d…
The thermal conductivity of silicon nitride membranes is not sensitive to stress
Hossein Ftouni, Christophe Blanc, Dimitri Tainoff +6
We have measured the thermal properties of suspended membranes from 10 K to 300 K for two amplitudes of internal stress (about 0.1 GPa and 1 GPa) and for two different thicknesses…
Scaling laws for the bifurcation-escape rate in a nanomechanical resonator
Martial Defoort, Vadim Puller, Olivier Bourgeois +2
We report on experimental and theoretical studies of the fluctuation-induced escape time from a metastable state of a nanomechanical Duffing resonator in cryogenic environment. By…
Modal Decomposition in Goalpost Micro/nano Electro-mechanical Devices
Eddy Collin, Martial Defoort, Kunal Lulla +5
We have studied the first three symmetric out-of-plane flexural resonance modes of a goalpost silicon micro-mechanical device. Measurements have been performed at 4.2K in vacuum, d…
Audio mixing in a tri-port nano-electro-mechanical device
M. Defoort, K. Lulla, J. -S. Heron +3
We report on experiments performed on a cantilever-based tri-port nano-electro-mechanical (NEMS) device. Two ports are used for actuation and detection through the magnetomotive sc…