Laser-ultrasonic Optical Characterization of Nonmetals

  title={Laser-ultrasonic Optical Characterization of Nonmetals},
  author={NONMETALS A. Hammoutene and Franck Enguehard and Lo{\"i}c Bertrand},
There is now a growing interest in the use of laser-generated ultrasound for nondestructive evaluation of materials [1,2]. In the case of nonmetals, the laser-ultrasonic displacement signals result from temporal convolution between the optical penetration, the laser pulse duration and the laser spot extension [3,4]. The temporal information present in the… CONTINUE READING