Anomalous bubble response to low frequency modulation of driving pressure

The emphasis of this study is to propose a new technique for bubble sizing by using the ability of a bubble as a nonlinear oscillatory system to amplify weak signals near the threshold of dynamical stability. The magnitude and the form of the acoustic pressure reradiated by the nonlinear oscillating bubble in this domain are drastically different from the modulation of incident wave and enable to characterize the bubble population in liquid.