Bubble acoustical scattering cross section under multi-frequency acoustic excitation

Shi Jie^{1, 2}, Yang De-sen^{1, 2}, Zhang Hao-yang^{1, 2, †}, Shi Sheng-guo^{1, 2}, Li Song^{1, 2}, Hu Bo^{1, 2}

(color online) The acoustical scattering cross section under single-frequency (dashed line kHz and dotted line kHz), dual-frequency (dash-dotted line kHz, kHz), and tri-frequency (solid line kHz, kHz, kHz) acoustic excitations versus equilibrium bubble radius by numerical solution. . The logarithmic bubble radius scale stretches the acoustical scattering cross section cruves for better viewing.