Speckle-phase measurement in a tandem-vortex coronagraph.
A tandem-vortex coronagraph can in theory enable high-contrast imaging behind a classical on-axis telescope. Here we point out that a tandem-vortex coronagraph configuration can also directly enable the measurement of the phases of focal-plane speckles, thereby allowing for their suppression in the resultant high-contrast image.
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA. gene.serabyn@jpl.nasa.gov
Eugene
E
Serabyn
J Kent
JK
Wallace
Dimitri
D
Mawet