ABSTRACT

Scattering problems are at the very heart of physics, from celestial to quantum mechanics, with particles or waves; we are always looking for a target. In our experiment, we are observing the light scattering in foams, and the results can be applied in acoustics, optics, and in spectroscopy. Light through foams presents a complex behavior; for example, though the laws of ray reflection and refraction are simple, the boundary conditions for the scattering of light are very difficult to be determined precisely due to the many awkward technical aspects, such as nonlinearities, or if the thickness of the liquid films is sufficiently close to the wavelength of visible light, there is light interference and thus produces the iridescent colors of soap bubbles.