Ultrafast echotomographic system using optical processing of ultrasonic signals

Abstract

An ultrafast ultrasonic tomograph has been developed in our laboratory for direct observation of the living tissues inside the human body. Acousto-optic interaction is the basic principle of our system. The information carried by the acoustic wave is impressed on a light beam diffracted during the acousto-optic interaction and an optical system is used for displaying a real image of an isonified object. A first and simple realization has been used to check the principle of operation. Directions for future improvements are iscussed.