Nanoscale imaging of super-high-frequency microelectromechanical resonators with femtometer sensitivity

Lee, Dae Hun; Jahanbani, Shahin; Kramer, Jack; Lu, Ruochen; Lai, Keji

doi:10.1038/s41467-023-36936-9

Cited by 4 publications

(2 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The quantum microscopy is based on the control of waves of light. The transmissionmode microwave impedance microscopy can be implemented on AFM to characterize the cantilever-based resonators for the application of quantum information science [54]. AFM photonic equipments with diverse micro-cantilever designs can also be tested to demonstrate the behaviours of the micro-cantilever at the fundamental in-plane mode at 25 MHz [55].…”

Section: Responses To Varying Fluid Propertiesmentioning

confidence: 99%

A multi-modal nonlinear dynamic model to investigate time-domain responses of a micro-cantilever in fluids

Yilmaz

2024

Eng. Res. Express

View full text Add to dashboard Cite

In this current work, a new nonlinear dynamic model based on the forced Van der Pol oscillator is introduced to demonstrate the time-domain sensitivities of the micro-cantilever to the varying properties of the surrounding fluids. Effects of diverse multi-frequency excitations on the hydrodynamically forced displacements are investigated for the Glycerol-water solutions with different concentrations. Driving forces at the eigenmode frequencies are applied simultaneously to actuate the micro-cantilever in multi-modal operations. The hydrodynamic force induces notable variations in the observables of high-frequency steady-state vibrations. To illustrate, the frequency of the displacements decreases with increasing dynamic viscosity and density of the fluids (among 55% and 85% Glycerol-water solutions) in bimodal- and trimodal-frequency excitations. Essentially, the observable responses are often used to distinguish the surrounding fluids in which the micro-cantilever operates. In addition, steady-state observables are achieved at only particular eigenmodes in single- and multi-frequency operations. It is highlighted that the periodic oscillations are obtained for the first and second eigenmodes with the highest value of forced Van der Pol parameter (μ =1030). Clearly, higher eigenmodes require different values of the nonlinearity parameter to acquire periodic vibrations in multi-modal operations. In general, achieving steady-state observables is substantially critical in quantifying sensitivity to varying fluid properties. For instance, the vibration frequency of around 7.33 MHz and amplitude of around 0.03 pm are obtained at the first eigenmode for 75% Glycerol-water solution in tetra-modal operations. Note that femtometer amplitudes of deflections can be measured using quantum-enhanced AFM techniques. The frequency responses obtained in this work are compared with the measured ones in the literature and the results show satisfactory agreements. Therefore, a novel multi-modal nonlinear dynamic model enables to quantify observable sensitivity to micro-rheological properties at higher eigenmodes of the micro-cantilever.

show abstract

Section: Responses To Varying Fluid Propertiesmentioning

confidence: 99%

A multi-modal nonlinear dynamic model to investigate time-domain responses of a micro-cantilever in fluids

Yilmaz

2024

Eng. Res. Express

View full text Add to dashboard Cite

show abstract

“…Conventionally, acoustic cavities are actuated by electric field, ,, continuous laser-induced radiation pressure, or heating effects. , The cavity resonance can be probed by techniques such as laser interferometry , and the piezoresistance effect . The bandwidth of these methods is limited from megahertz to a few gigahertz.…”

mentioning

confidence: 99%

Ultrafast Nanoimaging of Spin-Mediated Shear Waves in an Acoustic Cavity

Zhou,

Liu,

Zajac

et al. 2023

Nano Lett.

View full text Add to dashboard Cite

Strong spin−lattice coupling in van der Waals (vdW) magnets shows potential for innovative magneto-mechanical applications. Here, nanoscale and picosecond imaging by ultrafast electron microscopy reveal heterogeneous spin-mediated coherent acoustic phonon dynamics in a thin-film cavity of the vdW antiferromagnet FePS 3 . The harmonics of the interlayer shear acoustic modes are observed, in which the even and odd harmonics exhibit distinct nanoscopic dynamics. Corroborated by acoustic wave simulation, the role of defects in forming even harmonics is elucidated. Above the Neél temperature (T N ), the interlayer shear acoustic harmonics are suppressed, while the in-plane traveling wave is predominantly excited. The dominant acoustic dynamics shifts from the out-of-plane shear to the in-plane traveling wave across T N , demonstrating that magnetic properties can influence phonon scattering pathways. The spatiotemporally resolved structural characterization provides valuable nanoscopic insights for interlayer-shear-mode-based acoustic cavities, opening up possibilities for magneto-mechanical applications of vdW magnets.

show abstract

Klein tunneling of gigahertz elastic waves in nanoelectromechanical metamaterials

Lee,

Jiang,

Zhang

et al. 2024

Device

View full text Add to dashboard Cite

Nanoscale imaging of super-high-frequency microelectromechanical resonators with femtometer sensitivity

Cited by 4 publications

References 45 publications

A multi-modal nonlinear dynamic model to investigate time-domain responses of a micro-cantilever in fluids

A multi-modal nonlinear dynamic model to investigate time-domain responses of a micro-cantilever in fluids

Ultrafast Nanoimaging of Spin-Mediated Shear Waves in an Acoustic Cavity

Klein tunneling of gigahertz elastic waves in nanoelectromechanical metamaterials

Contact Info

Product

Resources

About