ScholarLens Back to search
2003•EAS Publications SeriesRequires access

Prolate apodized coronagraphy: numerical simulations for circular apertures

Rémi Soummer, Claude J. Aime, Peter E. Falloon

Open publisher page 7 citations

Abstract

The formalism for the prolate apodized coronagraphs is shortly outlined. A presentation of the numerical computation of the circular prolate apodization is given, and a comparison is made between the exact prolate and the solution obtained by Guyon & Roddier (2000), with an iterative algorithm. The agreement is excellent between the two solutions, provided a sufficient sampling of the mask. Numerical simulations are presented for circular apertures with prolate apodizations and compared to the classical unapodized technique: off-axis response, effect of mask size, central obscuration and chromatism.

About this research paper

What this paper is about

The formalism for the prolate apodized coronagraphs is shortly outlined. A presentation of the numerical computation of the circular prolate apodization is given, and a comparison is made between the exact prolate and the solution obtained by Guyon & Roddier (2000), with an iterative algorithm. The agreement is excellent between the two solutions, provided a sufficient sampling of the mask. Numerical simulations are presented for circular apertures with prolate apodizations and compared to the classical unapodized technique: off-axis response, effect of mask size, central obscuration and chromatism.

Why it matters

OpenAlex reports 7 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

The formalism for the prolate apodized coronagraphs is shortly outlined. A presentation of the numerical computation of the circular prolate apodization is given, and a comparison is made between the exact prolate and the solution obtained by Guyon & Roddier (2000), with an iterative algorithm. The agreement is excellent between the two solutions, provided a sufficient sampling of the mask. Numerical simulations are presented for circular apertures with prolate apodizations and compared to the classical unapodized technique: off-axis response, effect of mask size, central obscuration and chromatism.

Key concepts: Prolate spheroid, Apodization, Physics, Formalism (music), Computation, Optics, Iterative method, Algorithm

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Prolate apodized coronagraphy: numerical simulations for circular apertures — Research Paper | ScholarLens