Nonlinear acoustic modulation utilizing designed acoustic bubble array.

Abstract

Acoustic modulation has attracted significant investigative interest for their outstanding promising application scenes. Furthermore, acoustic bubble array has shown anticipated foreground in signal processing and acoustic manipulation. Here, we demonstrate a nonlinear acoustic modulation method via designed acoustic bubble array. Numerical calculations have been conducted to analyze several influential parameters and the corresponding effects on the vibrational behaviors of the acoustic bubbles. Appropriate corrections have been added on the numerical model to elucidate the physical scene. Experimental validation has confirmed the practicability and validity of the designation. Potential applications in biological tissue imaging and unidirectional sound transmission can be expected with further research.