This book shows how arbitrary acoustic wavefronts can be encoded in the thickness profile of a
phase plate - the acoustic hologram. The work ow 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.