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Generation of Ultrasound by Laser

  • C. B. Scruby
Part of the CISM International Centre for Mechanical Sciences book series (CISM, volume 330)

Abstract

Various physical processes may take place when a solid surface is illuminated by a laser, some of which generate ultrasound. At lower incident powers these include heating, the generation of thermal waves, elastic waves (ultrasound), and in materials such as semiconductors, electric currents may be caused to flow. At higher powers, material may be ablated from the surface, and a plasma formed, while in the sample there may be melting, plastic deformation and even cracks formed.

Keywords

Rayleigh Wave Lamb Wave Laser Power Density Thermoelastic Stress Fibre Delay Line 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 1993

Authors and Affiliations

  • C. B. Scruby
    • 1
  1. 1.National NDT CentreOxfordshireUK

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