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Title:
Diffraction-based Sensitivity Analysis of Apodized Pupil-mapping Systems
Authors:
Belikov, Ruslan; Kasdin, N. Jeremy; Vanderbei, Robert J.
Affiliation:
AA(Mechanical and Aerospace Engineering, Princeton University, Engineering Quad, Princeton, NJ 08544; , ), AB(Mechanical and Aerospace Engineering, Princeton University, Engineering Quad, Princeton, NJ 08544; , ), AC(Operations Research and Financial Engineering, Princeton University, Princeton, NJ 08544; )
Publication:
The Astrophysical Journal, Volume 652, Issue 1, pp. 833-844. (ApJ Homepage)
Publication Date:
11/2006
Origin:
UCP
ApJ Keywords:
Stars: Planetary Systems, Techniques: High Anular Resolution
DOI:
10.1086/507941
Bibliographic Code:
2006ApJ...652..833B

Abstract

Pupil mapping is a promising and unconventional new method for high-contrast imaging being considered for terrestrial exoplanet searches. It employs two (or more) specially designed aspheric mirrors to create a high-contrast amplitude profile across the telescope pupil that does not appreciably attenuate amplitude. As such, it reaps significant benefits in light-collecting efficiency and inner working angle, both critical parameters for terrestrial planet detection. While much has been published on various aspects of pupil-mapping systems, the problem of sensitivity to wave front aberrations remains an open question. In this paper we present an efficient method for computing the diffraction propagation in a pupil-mapped system. This method can be used for accurate studies of aberration sensitivity in pupil mapping and other coronagraphs. We demonstrate calculations of sensitivity to Zernike aberrations for a particular pupil-mapping system, as well as a concentric-ring-shaped-pupil coronagraph.
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