title: Droplet relaxation in Hele-Shaw geometry: Application to the measurement of the nematic-isotropic surface tension.
abstract: Shape measurements after the coalescence of isotropic droplets embedded in a thin sample of a homeotropic nematic phase provides a tool to measure the nematic-isotropic surface tension. In addition, this experiment allows us to check the scaling laws recently given by Brun et al. [P.-T. Brun, M. Nagel, and F. Gallaire, Phys. Rev. E 88, 043009 (2013)] to explain the relaxation of ellipsoidal droplets in a Hele-Shaw cell.
authors.affiliation: Université de Lyon, Ecole Normale Supérieure de Lyon, Laboratoire de Physique, CNRS, 46 Allée d'Italie, 69364 Lyon, Cedex 07, France.
authors.forename: Patrick
authors.initials: P
authors.lastname: Oswald
authors.affiliation: Université de Lyon, Ecole Normale Supérieure de Lyon, Laboratoire de Physique, CNRS, 46 Allée d'Italie, 69364 Lyon, Cedex 07, France.
authors.forename: Guilhem
authors.initials: G
authors.lastname: Poy