Circular aperture interferometric apodization using homothety - I. Simulation results

Details Circular aperture interferometric apodization using homothety - I. Simulation results Circular aperture interferometric apodization using homothety - I. Simulation results

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mnras.406.2743h&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 406, Issue 4, pp. 2743-2748.

Astronomy and Astrophysics

Astronomy

Instrumentation: High Angular Resolution, Methods: Numerical, Techniques: Interferometric, Telescopes

Scientific paper

In this paper we describe a two-dimensional apodization of a circular aperture produced by interferometry. The light that is diffracted by a circular aperture is split into two beams of different amplitudes, where one of them has undergone a homothety to change its radial dimensions 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 of parameters.

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