When a laser beam is absorbed in a semi-transparent material, a volume acoustic source is
created owing to penetration of the laser beam inside the material and to thermoelastic
transduction. Many experimental and theoretical studies have been conducted to better
understand this ultrasound generation process with normal laser light incidence on the
material surface. The purpose of this paper is to analyze the effects of the asymmetry caused
by oblique incidence of a laser line source on the generation of acoustic waves in semi …