Study of the acoustic and thermal response of an elastically anisotropic solid to a sub-nanosecond laser pulse in transient grating spectroscopy
This paper presents a detailed two-dimensional finite element model that fully couples thermal, mechanical, and optical fields to simulate transient grating spectroscopy on elastically anisotropic solids, enabling the analysis of ultra-transient acoustic features and thermoelastic relaxation that are beyond the scope of analytical theory.