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Proceedings Paper

Homothetic apodization of circular aperture HACA: simulation results
Author(s): O. Azagrouze; A. Habib; Y. Elazhari; Z. Benkhaldoun; M. Lazrek
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Paper Abstract

In this paper we describe a new technique of circular aperture apodization. It is produced by interferometry. The light, which is diffracted by a circular aperture, is split into two beams of different amplitudes where one of them has undergone an homothety to change its radial dimensions, by using an afocal optical system. The two beams are then combined coherently to form an apodized point spread function (PSF). This procedure allows us to reduce the diffraction wings of the PSF with different reduction factors depending on the combination parameters.

Paper Details

Date Published: 21 July 2010
PDF: 6 pages
Proc. SPIE 7734, Optical and Infrared Interferometry II, 77343I (21 July 2010); doi: 10.1117/12.856383
Show Author Affiliations
O. Azagrouze, Cadi Ayyad Univ. (Morocco)
A. Habib, Cadi Ayyad Univ. (Morocco)
Y. Elazhari, Cadi Ayyad Univ. (Morocco)
Z. Benkhaldoun, Cadi Ayyad Univ. (Morocco)
M. Lazrek, Cadi Ayyad Univ. (Morocco)

Published in SPIE Proceedings Vol. 7734:
Optical and Infrared Interferometry II
William C. Danchi; Françoise Delplancke; Jayadev K. Rajagopal, Editor(s)

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