Achieving Ultrawide Tunability in Monolithically Fabricated Si Nanoresonator Devices

W Yu, Y Ohara, C Meffan, J Hirotani, A Banerjee… - Nano Letters, 2023 - ACS Publications
Nanoresonators are powerful and versatile tools promising to revolutionize a wide range of
technological areas by delivering unparalleled performance in physical, chemical, biological …

Demonstration of frequency stability limited by thermal fluctuation noise in silicon nitride nanomechanical resonators

C Zhang, R St-Gelais - Applied Physics Letters, 2023 - pubs.aip.org
The frequency stability of nanomechanical resonators (NMRs) dictates the performance
level of many state-of-the-art sensors (eg, mass, force, temperature, radiation) that relate an …

A low-noise high-order mode-localized MEMS accelerometer

H Zhang, G Sobreviela, M Pandit… - Journal of …, 2021 - ieeexplore.ieee.org
This paper reports a precision mode-localized accelerometer operating in a higher-order
flexural mode. The accelerometer consists of two symmetric resonators coupled by a central …

[HTML][HTML] Spectral narrowing of parametrically pumped thermomechanical noise

JML Miller, DD Shin, HK Kwon, SW Shaw… - Applied Physics …, 2020 - pubs.aip.org
We derive the displacement noise spectrum of a parametrically pumped resonator below the
onset for self-excited oscillations. We extend the fluctuation-dissipation response of a …

On weakly coupled resonant MEMS transducers operating in the modal overlap regime

H Zhang, M Pandit, J Sun, D Chen… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
Miniaturized physical transducers based on weakly coupled resonators have previously
demonstrated the twin benefits of high parametric sensitivity and the first-order common …

[HTML][HTML] Quality factor tuning of micromechanical resonators via electrical dissipation

NE Bousse, JML Miller, HK Kwon, GD Vukasin… - Applied Physics …, 2020 - pubs.aip.org
Sensitive capacitive transduction of micromechanical resonators can contribute significant
electrical dissipation, which degrades the quality factor of the eigenmodes. We theoretically …

Amplitude stabilization of micromechanical oscillators using engineered nonlinearity

JML Miller, A Gomez-Franco, DD Shin, HK Kwon… - Physical Review …, 2021 - APS
Micromechanical oscillators provide periodic output signals for clocks and sensors by
vibrating in a single mechanical mode. The mode is conventionally excited into self …

Sensitivity enhancement of nonlinear micromechanical sensors using parametric symmetry breaking

Y Xu, Q Yang, J Song, X Wei - Microsystems & Nanoengineering, 2024 - nature.com
The working mechanism of resonant sensors is based on tracking the frequency shift in the
linear vibration range. Contrary to the conventional paradigm, in this paper, we show that by …

Signatures and detection prospects for sub-GeV dark matter with superfluid helium

Y You, J Smolinsky, W Xue, K Matchev, T Saab… - Journal of High Energy …, 2023 - Springer
A bstract We explore the possibility of using superfluid helium for direct detection of sub-GeV
dark matter (DM). We discuss the relevant phenomenology resulting from the scattering of …

A Compact Reconfigurable Resonator-Based Direct Current Sensing System

X Zou, U Yaqoob, H Hussein… - Journal of …, 2022 - ieeexplore.ieee.org
A compact and reconfigurable current readout system is presented that is based on
microelectromechanical system (MEMS) resonators. The proposed system generates …