title: Vortex coronagraphy from self-engineered liquid crystal spin-orbit masks.
abstract: We report on a soft route toward optical vortex coronagraphy based on self-engineered electrically tunable vortex masks made of liquid crystal topological defects. These results suggest that a nature-assisted technological approach to the fabrication of complex phase masks could be useful in optical imaging whenever optical phase singularities are at play.
authors.forename: Artur
authors.initials: A
authors.lastname: Aleksanyan
authors.forename: Etienne
authors.initials: E
authors.lastname: Brasselet