Pfisterer, Richard N. and Harvey, James E. and Breckinridge, James B. (2018) The role of narrow-angle forward surface scatter and particulate scatter in 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. 106985F. ISBN 9781510619494. https://resolver.caltech.edu/CaltechAUTHORS:20180718-152258159
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Abstract
It is often thought that because of the very small solid angle subtended by the field-of-view of the coronagraph, scattered light from optical surfaces will have no effect on images recorded for terrestrial exoplanet spectroscopy. In this paper, we examine mirror surface scatter and particulate contamination scatter as sources of background light or noise signal in large aperture terrestrial exoplanet telescope/coronagraph systems. Scattered light control to one part in 10^(+10) or better is required for exoplanet exploration. We will discuss the optical fabrication tolerances necessary to minimize narrowangle forward scatter and their relative effects upon direct imaging coronagraph instruments used to characterize terrestrial exoplanets.
| Item Type: | Book Section | ||||||
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| Additional Information: | © 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). | ||||||
| Group: | GALCIT | ||||||
| Subject Keywords: | stray light, BSDF, particulates, exoplanets | ||||||
| Series Name: | Proceedings of SPIE | ||||||
| Issue or Number: | 10698 | ||||||
| DOI: | 10.1117/12.2314229 | ||||||
| Record Number: | CaltechAUTHORS:20180718-152258159 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180718-152258159 | ||||||
| Official Citation: | Richard N. Pfisterer, James E. Harvey, James B. Breckinridge, "The role of narrow-angle forward surface scatter and particulate scatter in exoplanet exploration", Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106985F (6 July 2018); doi: 10.1117/12.2314229; https://doi.org/10.1117/12.2314229 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 87973 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | George Porter | ||||||
| Deposited On: | 18 Jul 2018 22:58 | ||||||
| Last Modified: | 16 Nov 2021 00:22 |
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