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, dual-frequency, and tri-frequency acoustic excitations versus both excitation frequency f and by numerical solution. (a) , (b) , (c) , (d) . The logarithmic frequency f scale stretches the acoustical scattering cross section for better viewing.