Self-scanned optical transducer using acoustic domains in CdS

This paper will present experimental results of a one-dimensional self-scanned optical transducer. Self-scanning is accomplished by the motion of an acoustic domain through a one-cm-long bar of single-crystal CdS. Attached to this bar is a nine-element photoconducting CdS light sensor. When illuminated, the sensors provide a current bypass around the traveling domain, resulting in an output current which is a function of illumination. Megabit-per-second transfer speeds are obtainable.