The annular groove phase mask coronagraph

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The annular groove phase mask coronagraph

An achromatic optical vortex

Journal Article (2007)

Author(s)

Dimitri Mawet (Sart Tilman B52)

Pierre Riaud (Observatoire de Paris)

Charles Hanot (Sart Tilman B52)

Denis Vandormael (Sart Tilman B52)

Jerome Loicq (Sart Tilman B52)

Jacques Baudrand (Observatoire de Paris)

Jean Surdej (Sart Tilman B52)

Serge Habraken (Sart Tilman B52)

Affiliation

External organisation

Optical vortices Coronagraphy Subwavelength optical elements

DOI related publication

https://doi.org/10.1117/12.758406 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:cddab770-58fc-4114-a402-b9832b7a3508

More Info

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Publication Year

2007

Language

English

Affiliation

External organisation

Journal title

Proceedings of SPIE - The International Society for Optical Engineering

Volume number

6693

Article number

66931M

Event

Techniques and Instrumentation for Detection of Exoplanets III (2007-08-28 - 2007-08-30), San Diego, CA, United States

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Abstract

The Annular Groove Phase Mask coronagraph (AGPM) is an intrinsically achromatic vectorial vortex. It consists of integrated subwavelength optical elements whose space-variant polarization properties can be engineered and optimized to synthesize one of the theoretically most efficient coronagraphs. This paper briefly recalls the principles of the AGPM, presents the benefit of its implementation inside a Polarimetrie differential imager, realistic numerical simulations assessing its performances, as well as the current status of the near-infrared and visible prototype manufacturing operations.