摘要

In this paper, the ultrasonic displacement field in an anisotropic crystal generated by a pulsed laser line-source was precisely solved by the Cagniard-de Hoop method. The experiment of measuring the ultrasound was carried out by the laser ultrasonic technique, which has unique features of non-contact, high spatial and temporal resolution. Our results obtained from a copper crystal (phi 35 X 15mm(3), the normal of the sample surface was along < 100 > direction) have shown the agreement between the theory and experiment.