title: Experimental study of focused ultrasonic beams reflected at a fluid-solid interface in the neighborhood of the Rayleigh angle.
abstract: A technique for measuring the lateral and axial displacements of the focal point of an acoustic focused beam reflected at a water-aluminum interface in the neighborhood of the Rayleigh angle incidence is presented together with a qualitative representation of other nonspecular phenomena, based on the cartography of the reflected beam. A study of the feasibility of the experiment and the choice of the transducer is carried out. The results obtained are in agreement with theoretical predictions.
authors.affiliation: US Air Force Lab., Wright-Patterson AFB, OH.
authors.forename: T E
authors.initials: TE
authors.lastname: Matikas
authors.forename: M
authors.initials: M
authors.lastname: Rousseau
authors.forename: P
authors.initials: P
authors.lastname: Gatignol