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Proceedings Paper

Novel designs for minimizing diffraction effects of large segmented mirror telescopes
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Paper 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 a detailed diffraction analysis of innovative segmented mirror concepts utilizing curved segment gaps and secondary support struts that eliminate these diffraction spikes that can obscure the faint exoplanet image. The resulting diffraction performance will be quantitatively compared to that of both monolithic circular pupils and classical hexagonally segmented mirrors. We will utilize performance-based merit functions consisting of both radial and azimuthal profiles of the resulting telescope point spread function.

Paper Details

Date Published: 17 September 2018
PDF: 14 pages
Proc. SPIE 10745, Current Developments in Lens Design and Optical Engineering XIX, 107450L (17 September 2018); doi: 10.1117/12.2326923
Show Author Affiliations
James E. Harvey, Photon Engineering LLC (United States)
James B. Breckinridge, Breckinridge Associates LLC (United States)
Caltech (United States)
Ryan G Irvin, Photon Engineering LLC (United States)
Richard N. Pfisterer, Photon Engineering LLC (United States)

Published in SPIE Proceedings Vol. 10745:
Current Developments in Lens Design and Optical Engineering XIX
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

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