Mechanical resonators are widely used in sensors, transducers and optomechanical
systems, where mechanical dissipation sets the ultimate limit to performance. Over the past …

Numerous astrophysical and cosmological observations are best explained by the existence
of dark matter, a mass density which interacts only very weakly with visible, baryonic matter …

In strained mechanical resonators, the concurrence of tensile stress and geometric
nonlinearity dramatically reduces dissipation. This phenomenon, called dissipation dilution …

From ultrasensitive detectors of fundamental forces to quantum networks and sensors,
mechanical resonators are enabling next‐generation technologies to operate in room …

Bragg scattering and local resonance are two fundamental mechanisms for bandgap (BG)
formation of phononic crystals (PCs) and acoustic metamaterials (AMs). In this paper, a new …

We report the development of a scanning force microscope based on an ultrasensitive
silicon nitride membrane optomechanical transducer. Our development is made possible by …

Coherent feedback stabilizes a system toward a target state without the need of a
measurement, thus avoiding the quantum backaction inherent to measurements. Here, we …

Nanomechanical resonators realized from tensile-strained materials reach ultralow
mechanical dissipation in the kHz to MHz frequency range. Tensile-strained crystalline …

Several studies relevant to double-defect-mode-induced energy localization of a phononic
crystal (PnC) have progressed. However, most works have examined the typical setting in …

As an effective means to manipulate elastic wave energy, the defect mode of phononic
crystals (PCs) has recently been employed to implement vibration energy harvesting by …