Light propagating in foams or emulsions is strongly scattered by the gas–liquid or liquid–
liquid interfaces. This feature makes it generally impossible to directly observe the structure …

We report here an overview of current trends and a selection of recent results regarding the
characterization of emulsions by Diffusing Wave Spectroscopy (DWS). We provide a …

We study experimentally the dynamical heterogeneities occurring at slow shear, in a model
amorphous glassy material, ie, a 3D granular packing. The deformation field is resolved …

We report on grain dynamics versus depth for steady-state gravity-driven flow of grains
along a heap formed between two parallel sidewalls. Near the surface the flow is steady and …

We present an experimental apparatus specifically designed to investigate the precursors of
failure in granular materials. A sample of granular material is placed between a latex …

We propose an experimental setup based on diffusive wave spectroscopy for studying
deformations of a solid material. The scattered waves are measured during the deformation …

This article is a tutorial on the practical implementation of a method of measurement of
minute deformations based on multiple scattering. This technique has been recently …

We present an experimental study of the deformation inside a granular material that is
progressively tilted. We investigate the deformation before the avalanche with a spatially …

We couple a laser-based, space-resolved dynamic light scattering apparatus to a universal
traction machine for mechanical extensional tests. We perform simultaneous optical and …

We report an experimental study of the surface flow and the creeping flow of glass spheres
on a heap. We characterize the dynamics of the flow with particle tracking velocimetry and …