… phase mask coronagraph consisting in an optical vortex induced by a space-variant surface
relief subwavelength grating. Phase mask … to synthesize achromatic phase shifters. We show …

… The Annular Groove Phase Mask coronagraph (AGPM) is an intrinsically achromatic … to
synthesize one of the theoretically most efficient coronagraphs. This paper briefly recalls the …

… The annular groove phase mask (AGPM) is one possible implementation of the vector
vortex coronagraph, where the helical phase ramp is produced by a concentric subwavelength …

… In this paper, we present the results of our work on the Annular Groove Phase Mask (AGPM)
coronagraph, an achromatic VVC proposed in 2005 by our team (Mawet et al. 20051). We …

… , 8 we aim to simulate the coronagraphic procedure as it happens inside a … phase masks.
VODCA aims to produce measurements as close as possible to the intrinsic limit of each mask. …

… Annular Groove Phase Mask (AGPM) is a broadband metasurface implementation of a
vector vortex phase mask … results obtained on our infrared coronagraphic test bench, and we …

… We present two new phase mask coronagraphs … Quadrant Phase Mask coronagraph, which
resolves the π phase … grating: the Annular Groove Phase Mask (AGPM) coronagraph is fully …

… recent members of the phase-mask coronagraph family, and are the main subject of our
work, especially one sort of VVC technology called the annular groove phase mask (AGPM), …

… Spectrograph (METIS), utilize coronagraphs to study stellar environments by suppressing …
is the Annular Groove Phase Mask (AGPM1), a type of vector vortex coronagraph known for its …

… masks. First, we demonstrate the feasibility of topological charge 2 components (so-called
annular groove phase masks) … phase masks are optically evaluated using a coronagraph test …