Abstract
A new means of the supersonic generation and resonant amplification of shear elastic waves in dissipative media is developed. The procedure is based on the remote formation of a source of low-frequency shear waves inside a biological tissue under the radiation pressure of a focused ultrasonic beam. Finite-difference modeling of the propagation of low-frequency shear waves in biological tissues is performed. Measurements and visualization of focused acoustic fields along with a Mach spiral structures in acoustic phantoms are performed that confirm the efficiency and feasibility of the developed means of the supersonic generation and resonant amplification of shear waves in biological tissues for ultrasonic diagnostics and therapy.
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