Space-variant Pancharatnam-Berry Phase Metasurfaces for Segmented Aperture Coronagraphs
Status: Completed
Start Date: 2022-10-01
End Date: 2023-09-30
Description:
Develop geometric phase masks optimized for segmented aperture vortex coronagraphs, achieving extreme broadband starlight suppression and high exoplanet light throughput, enabling exoplanet spectral characterization. Demonstrate segmented aperture starlight suppression with a reflective pupil-plane GPMS on a coronagraph testbed with active wavefront control
Benefits:
Segmented aperture coronagraphs achieving broadband 10^(−10) contrast with a factor of 2 improvement in exoplanet throughput possible over existing state of the art achromatic apodized vortex coronagraph designs
Lead Organization: Jet Propulsion Laboratory