Mechanical resonators based on low-dimensional materials are promising for force and mass sensing experiments. The force sensitivity in these ultra-light resonators is often limited by the imprecision in the measurement of the vibrations, the fluctuations of the mechanical resonant frequency and the heating induced by the measurement. Here, we strongly couple multilayer graphene resonators to s...

Soft tissues surrounding vascular injuries are known to vibrate at audible and palpable frequencies, producing bruits and thrills. We report the results of a feasibility study where Doppler ultrasound (US) was used to quantitatively estimate the tissue vibrations after induced trauma in an animal model. A software-programmable US system was used to acquire quadrature-demodulated ensembles of re...

We report guided-light opto-mechanical sensing of the mechanical vibrations of a toroidal-lipped SiO2 GOBLiT. An optical quality factor of 1.7x10 allowed us to measure mechanical vibrations of the GOBLiT with mechanical quality factor 206 in air for the n=2 degenerate wineglass mode. Light was coupled into the resonator via a tapered optical fiber and used to sense mechanical motion of the GOBL...

This paper presents the development of a printed circuit board (PCB) integrated vibration-induced power generator with total volume of ~1cm that uses lasermicromachined springs as resonating structures. The goal of our research is to create a minimally sized, economical, and circuit integrated electric power generator capable of producing enough voltage to drive low-power IC circuit or wireless...

This paper presents the design, analysis, and experimental results of a vibration-induced power generator with total volume of -1 cm3 that uses laser-micromachined springs as resonating structures. The goal of our research is to create a minimally sized electric power generator capable of producing enough voltage to drive low-power IC circuit systems or micro sensors for robotic and automation ...