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Proceedings Paper

Calculating diffraction-limited point spread functions for large segmented telescopes
Author(s): Stephen S. Eikenberry; Brienne D. Shkedi; Terry L. Herter
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Paper Abstract

We present techniques for Fourier analysis of the diffraction-limited optical performance of large-aperture astronomical telescopes. We use combinations of Fast Fourier Transform, Discrete Fourier Transform, and Fourier interpolation algorithms as well as the symmetry properties of the segmented mirrors to achieve full calculation of the diffraction pattern in a computationally-efficient manner. We discuss the implementation and results of these techniques in the context of a 15-meter segmented-mirror telescope design for the Large Atacama Telescope.

Paper Details

Date Published: 4 February 2003
PDF: 10 pages
Proc. SPIE 4837, Large Ground-based Telescopes, (4 February 2003); doi: 10.1117/12.457908
Show Author Affiliations
Stephen S. Eikenberry, Cornell Univ. (United States)
Brienne D. Shkedi, Cornell Univ. (United States)
Terry L. Herter, Cornell Univ. (United States)

Published in SPIE Proceedings Vol. 4837:
Large Ground-based Telescopes
Jacobus M. Oschmann; Larry M. Stepp, Editor(s)

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