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Diffraction analysis of large segmented mirror concepts for exoplanet exploration

Harvey, James E. and Irvin, Ryan G. and Crabtree, Karlton and Pfisterer, Richard N. and Breckinridge, James B. (2018) Diffraction analysis of large segmented mirror concepts for exoplanet exploration. In: Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave. Proceedings of SPIE. No.10698. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 106981Q. ISBN 9781510619494. http://resolver.caltech.edu/CaltechAUTHORS:20180718-152857173

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Abstract

Diffraction effects of large segmented mirror gaps and secondary mirror support struts produce diffraction peaks or flares that are a detriment to exoplanet detection. In this paper we present detailed parametric diffraction analyses of an innovative “Pinwheel Pupil” segmented mirror concept utilizing curved segment gaps and secondary support struts that can potentially eliminate these diffraction flares that can obscure a faint exoplanet image. The resulting numerical diffraction performance predictions are quantitatively compared to that of both ideal monolithic circular pupils and classical annular pupils with straight secondary mirror struts. We utilize performance – based merit functions consisting of both radial and azimuthal profiles of the resulting telescope point spread function.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2313999DOIArticle
ORCID:
AuthorORCID
Breckinridge, James B.0000-0002-9488-098X
Additional Information:© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE).
Group:GALCIT
Subject Keywords:Exoplanet exploration, Large segmented mirrors, Pinwheel pupil, Diffraction effects
Record Number:CaltechAUTHORS:20180718-152857173
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180718-152857173
Official Citation:James E. Harvey, Ryan G. Irvin, Karlton Crabtree, Richard N. Pfisterer, James B. Breckinridge, "Diffraction analysis of large segmented mirror concepts for exoplanet exploration", Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106981Q (6 July 2018); doi: 10.1117/12.2313999; https://doi.org/10.1117/12.2313999
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87974
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:18 Jul 2018 22:59
Last Modified:18 Jul 2018 22:59

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