@inproceedings{5ae0cf2ec1664e4fb2797cfac7f20505,
title = "Shaped pupil Lyot coronagraph designs for WFIRST/AFTA",
abstract = "The baseline design for the WFIRST-AFTA Coronagraphic Instrument includes several shaped pupil masks. Our newest designs incorporate the shaped pupil into a Lyot-style architecture to access smaller inner working angles at a given tradeoff in throughput and contrast. We describe two mask configurations: a characterization mode for spectroscopy of exoplanet atmospheres, and a wider-field mode for debris disk observations. We use polychromatic contrast constraints to anchor the spatial extent of the dark search region over the instrument filter bandpass. We examine several practical issues that arise during the optimization process, such as the use of symmetry, and the choice of spatial and wavelength resolutions in the propagation model. Finally, we evaluate the tolerances of the new designs to mask translation and clocking errors.",
keywords = "High-contrast imaging, coronagraph, exoplanet, optimization, space telescope",
author = "Zimmerman, {Neil T.} and Riggs, {A. J.Eldorado} and Kasdin, {N. Jeremy} and Alexis Carlotti and Vanderbei, {Robert J.}",
note = "Publisher Copyright: {\textcopyright} 2015 SPIE.; Techniques and Instrumentation for Detection of Exoplanets VII ; Conference date: 10-08-2015 Through 13-08-2015",
year = "2015",
doi = "10.1117/12.2187141",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Stuart Shaklan",
booktitle = "Techniques and Instrumentation for Detection of Exoplanets VII",
address = "United States",
}