The Acoustic Hologram and Particle Manipulation with Structured Acoustic Fields

This book shows how arbitrary acoustic wavefronts can be encoded in the thickness profile of a phase plate – the acoustic hologram. The workflow for design and implementation of these elements has been developed and is presented in this work along with examples in microparticle assembly, object propulsion and levitation in air. To complement these results, a fast thermographic measurement technique has been developed to scan and validate 3D ultrasound fields in a matter of seconds.