@inproceedings{8804ec3995144e2f84334e1b4e98b54c,
title = "Model validation of phase-induced amplitude apodization complex mask coronagraph for LUVOIR-A in vacuum",
abstract = "The Phase-Induced Amplitude Apodization Complex Mask Coronagraph (PIAACMC) is a coronagraph architecture for the next generation of large space telescopes optimized for habitable exoplanet imaging that can achieve attractive theoretical performance with high throughput at small inner working angles (IWA). PIAACMC designs are compatible with large, on-Axis, segmented apertures such as the Large UV / Optical/ Infrared A (LUVOIRA) concept currently being considered by the decadal survey review which would greatly enhance the possibility to achieve statistically significant scientific yields and signal quality for direct imaging exoplanet surveys. A PIAACMC design has been recently created for LUVOIR-A and is currently being tested in vacuum at JPL's High-Contrast Imaging Testbed (HCIT). In this work, we review the theoretical performance of the PIAACMC instrument designed to meet a 1e-9 raw contrast goal in 10% broadband light in a region from 2-8 λ/D both before and after the wavefront control loop. We use empirical measurements from the vacuum testbed to verify the instrument model and its performance including line-of-sight errors, instrument alignment, and fabricated components. In particular, the model verification includes measured sags of the manufactured PIAA mirrors by NuTek. The CMC mask was manufactured at JPL's Microdevices Laboratory and we include surface profile characterization measurement. We assess the impact on performance of the different manufacturing and alignment errors.",
keywords = "Binary Stars, High-Contrast Imaging, Multi-StarWavefront Control, Super-Nyquist Wavefront Control, WFIRST, Wavefront Control",
author = "Dan Sirbu and David Marx and Ruslan Belikov and Eduardo Bendek and Fogarty, {Kevin W.} and Brian Kern and Olivier Guyon and Pluzhnyk, {Eugene E.} and Wilson, {Daniel W.}",
note = "Funding Information: This work was supported in part by the National Aeronautics and Space Administration{\textquoteright}s Ames Research Center, as well as the NASA Strategic Astrophysics Technology – Technology Development for Exoplanet Missions (SAT-TDEM) program through solicitation NNH16ZDA001N-SAT at NASA{\textquoteright}s Science Mission Directorate. It was carried out at the Caltech/Jet Propulsion Laboratory, NASA Ames Research Center, and the University of Arizona. Any opinions, findings, and conclusions or recommendations expressed in this article are those of the authors and do not necessarily reflect the views of the National Aeronautics and Space Administration. Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; Techniques and Instrumentation for Detection of Exoplanets X 2021 ; Conference date: 01-08-2021 Through 05-08-2021",
year = "2021",
doi = "10.1117/12.2594901",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Shaklan, {Stuart B.} and Ruane, {Garreth J.}",
booktitle = "Techniques and Instrumentation for Detection of Exoplanets X",
}