3 papers
astro-ph.IM2024
Black Silicon BRDF and Polarization for Coronagraphic Pupil Masks
Emory L. Jenkins, Ramya M. Anche, Kyle J. Van Gorkom +2
Future space observatories will likely have segmented primaries, causing diffraction effects that reduce coronagraph performance. Reflective binary pupil apodizer masks can mitigat…
astro-ph.IM2024
The Space Coronagraph Optical Bench (SCoOB): 5. End-to-end simulations of polarization aberrations
Ramya M Anche, Kyle J. Van Gorkom, Jaren N. Ashcraft +4
Polarization aberrations originating from the telescope and high-contrast imaging instrument optics introduce polarization-dependent speckles and associated errors in the image pla…
astro-ph.IM2023
Microfabricated pinholes for high contrast imaging testbeds
Emory L. Jenkins, Kyle Van Gorkom, Kevin Derby +2
In order to reach contrast ratios of and beyond, coronagraph testbeds need source optics that reliably emulate nearly-point-like starlight, with microfabricated pinholes…