From Event: SPIE Optical Engineering + Applications, 2017
The Planetary Imaging Concept Testbed Using a Recoverable Experiment - Coronagraph (PICTURE-C) mission will directly image debris disks and exozodiacal dust around nearby stars from a high-altitude balloon using a vector vortex coronagraph. Four leakage sources owing to the optical fabrication tolerances and optical coatings are: electric field conjugation (EFC) residuals, beam walk on the secondary and tertiary mirrors, optical surface scattering, and polarization aberration. Simulations and analysis of these four leakage sources for the PICTUREC optical design are presented here.
Christopher B. Mendillo, Glenn A. Howe, Kuravi Hewawasam, Jason Martel, Susanna C. Finn, Timothy A. Cook, and Supriya Chakrabarti, "Optical tolerances for the PICTURE-C mission: error budget for electric field conjugation, beam walk, surface scatter, and polarization aberration," Proc. SPIE 10400, Techniques and Instrumentation for Detection of Exoplanets VIII, 1040010 (Presented at SPIE Optical Engineering + Applications: August 09, 2017; Published: 1 September 2017); https://doi.org/10.1117/12.2274105.
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