in establishing the energetic
and geometrical
characteristics of the heat source at the interface, a quantification of the laser beam scattering is
necessary. Since the use of classical approximation based on the Beer-Lambert law can lead to
inaccurate results in the case of scattering media, a new approach is used. Its detail description is given
in previous works [8] [9]. Basically, it involves two steps: (a) based on measurements of the
transmitted intensity (in % from the incident one) for three thickness of the same semitransparent
material, the scattering characteristics of the media (particles diameter, the relative refractive index and
the particle concentration).