Acoustic beam shaping with high degrees of freedom is critical for ultrasound imaging, acoustic regulation, and stimulation. The ability to fully regulate the acoustic pressure profile relative to its ...

Structured acoustic fields can pull macroscopic objects towards the source by means of nonconservative forces. Figure 1: (a) Nonconservative pushing force exerted on an object by a plane wave as a ...

Scientists created acoustic holograms with shapes such as tweezers, twisters and cages that exert forces on particles to levitate and manipulate them. (Credit: Asier Marzo, Bruce Drinkwater and Sriram ...