An Alternative Method to Deduce Bubble Dynamics in Single Bubble Sonoluminescence Experiments

TL;DR

This paper introduces an experimental method to determine key parameters of single sonoluminescing bubbles using accessible measurements, providing a cost-effective alternative to traditional optical techniques.

Contribution

The authors propose a new experimental approach that deduces bubble dynamics from simple measurements, avoiding expensive equipment and aligning with conventional methods within uncertainties.

Findings

The method accurately estimates bubble parameters.

Results are comparable to traditional Mie scattering.

The technique simplifies bubble dynamics measurements.

Abstract

In this paper we present an experimental approach that allows to deduce the important dynamical parameters of single sonoluminescing bubbles (pressure amplitude, ambient radius, radius-time curve) The technique is based on a few previously confirmed theoretical assumptions and requires the knowledge of quantities such as the amplitude of the electric excitation and the phase of the flashes in the acoustic period. These quantities are easily measurable by a digital oscilloscope, avoiding the cost of expensive lasers, or ultrafast cameras of previous methods. We show the technique on a particular example and compare the results with conventional Mie scattering. We find that within the experimental uncertainties these two techniques provide similar results.