Probing helium interfaces with light scattering : from fluid mechanics to statistical physics
Soft Condensed Matter
2009-11-13 v1 Statistical Mechanics
Classical Physics
Optics
Abstract
We have investigated the formation of helium droplets in two physical situations. In the first one, droplets are atomised from superfluid or normal liquid by a fast helium vapour flow. In the second, droplets of normal liquid are formed inside porous glasses during the process of helium condensation. The context, aims, and results of these experiments are reviewed, with focus on the specificity of light scattering by helium. In particular, we discuss how, for different reasons, the closeness to unity of the index of refraction of helium allows in both cases to minimise the problem of multiple scattering and obtain results which it would not be possible to get using other fluids.
Cite
@article{arxiv.0807.1630,
title = {Probing helium interfaces with light scattering : from fluid mechanics to statistical physics},
author = {Pierre-Etienne Wolf and Fabien Bonnet and Sylvain Perraud and Laurent Puech and Bernard Rousset and Pierre Thibault},
journal= {arXiv preprint arXiv:0807.1630},
year = {2009}
}
Comments
21 pages