title: Low-order aberration sensitivity of an optical vortex coronagraph.
abstract: We describe a high-contrast imaging technique capable of directly measuring light from a terrestrial planet by using a vortex mask of topological charge m = 5. We demonstrate that this technique is relatively insensitive to low-order aberrations and compare its performance to that of a band-limited Lyot coronagraph.
authors.affiliation: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA. David.M.Palacios@jpl.nasa.gov
authors.forename: David M
authors.initials: DM
authors.lastname: Palacios
authors.forename: Sarah L
authors.initials: SL
authors.lastname: Hunyadi