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The annular groove phase mask coronagraph: an achromatic optical vortex
Mawet, D.; Riaud, Pierre; Hanot, Charles et al.
2007In Coulter, Daniel R (Ed.) "Techniques and Instrumentation for Detection of Exoplanets III" Proceedings of the SPIE, Volume 6693, Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
 

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Keywords :
coronagraphy; optical vortices; subwavelength optical elements
Abstract :
[en] 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 polarimetric differential imager, realistic numerical simulations assessing its performances, as well as the current status of the near-infrared and visible prototype manufacturing operations.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Mawet, D.;  University of Liege (Belgium)
Riaud, Pierre ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Hanot, Charles ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Vandormael, D.;  University of Liege (Belgium)
Loicq, Jerôme ;  Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Baudrand, D.
Surdej, Jean  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Habraken, Serge ;  Université de Liège - ULiège > Département de physique > Optique - Hololab - CSL (Centre Spatial de Liège)
Language :
English
Title :
The annular groove phase mask coronagraph: an achromatic optical vortex
Publication date :
01 September 2007
Event name :
Techniques and Instrumentation for Detection of Exoplanets III
Audience :
International
Main work title :
"Techniques and Instrumentation for Detection of Exoplanets III" Proceedings of the SPIE, Volume 6693, Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
Editor :
Coulter, Daniel R
Collection name :
Proceedings of the SPIE, Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
Available on ORBi :
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