Near Field Analysis of Laser-generated Ultrasound: the Effects of Thermal Diffusion and Optical Penetration
نویسندگان
چکیده
A first step towards the development of a model for the Scanning Laser Source technique is presented, which entails an analytical formulation for the transient response of an isotropic, homogeneous, linearly elastic half-space submitted to a pulsed laser line source operating in the thermoelastic regime. The formulation takes into account optical penetration into the material and thermal diffusion from the source, and is therefore a suitable representation for the field near the source, where these effects become significant.
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