Raw data and software for 'Beyonfd linear response in colloids'

Colloidal suspensions offer huge potential to provide new insights into the fundamental behavior
of liquids both because the particles’ positions can be directly measured, and because their soft
nature provides the unique possibility to go beyond linear response by exposing the system to
strong fields. Here, we capitalize on this opportunity by directly measuring the response of a liquid
to a strong spatially periodic external field in experiments, simulations and theoretical models.
Strikingly, we observe a structural change in the direction perpendicular to the field variation, which
evolves sensitively with the applied field period, as locally favored structures of the unperturbed
liquid are selectively enhanced. These results open new research directions: by imposing artificial
density modulations it is possible to extract structural information that are inaccessible to scattering
experiments.