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Nanoscale Imaging of Super-High-Frequency Microelectromechanical Resonators with Femtometer Sensitivity
Daehun Lee, Shahin Jahanbani, Jack Kramer +2
Implementing microelectromechanical system (MEMS) resonators calls for detailed microscopic understanding of the devices, such as energy dissipation channels, spurious modes, and i…
Electrical Control of Surface Acoustic Waves
Linbo Shao, Di Zhu, Marco Colangelo +7
Acoustic waves at microwave frequencies have been widely used in wireless communication and recently emerged as versatile information carriers in quantum applications. However, mos…
Microwave-to-optical conversion using lithium niobate thin-film acoustic resonators
Linbo Shao, Mengjie Yu, Smarak Maity +8
We demonstrate conversion of up to 4.5 GHz-frequency microwaves to 1500 nm-wavelength light using optomechanical interactions on suspended thin-film lithium niobate. Our method uti…
Visualization of Local Conductance in MoS2/WSe2 Heterostructure Transistors
Di Wu, Wei Li, Amritesh Rai +7
The vertical stacking of van der Waals (vdW) materials introduces a new degree of freedom to the research of two-dimensional (2D) systems. The interlayer coupling strongly influenc…
Quantitative Measurements of Nanoscale Permittivity and Conductivity Using Tuning-fork-based Microwave Impedance Microscopy
Xiaoyu Wu, Zhenqi Hao, Di Wu +5
We report quantitative measurements of nanoscale permittivity and conductivity using tuning-fork (TF) based microwave impedance microscopy (MIM). The system is operated under the d…