2 papers
physics.app-ph2024
Air-coupled ultrasound using broadband shock waves from piezoelectric spark igniters
K. G. Scheuer, R. G. DeCorby
We used an optomechanical sensor to study the ultrasound generated by manually operated piezoelectric spark igniters. These low-energy sparks produce short-duration acoustic shock-…
physics.flu-dyn2023
Coupling the thermal acoustic modes of a bubble to an optomechanical sensor
K. G. Scheuer, F. B. Romero, R. G. DeCorby
We report experimental observations of the volume acoustic modes of air bubbles in water, including both the fundamental Minnaert breathing mode and a family of higher-order modes…