Published September 19, 2007
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The annular groove phase mask coronagraph: an achromatic optical vortex
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 polarimetric differential imager, realistic numerical simulations assessing its performances, as well as the current status of the near-infrared and visible prototype manufacturing operations.
Additional Information
© 2007 SPIE. The authors acknowledge the financial support of the Belgian FNRS.Attached Files
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Additional details
- Eprint ID
- 57720
- Resolver ID
- CaltechAUTHORS:20150520-142027045
- Fonds de la Recherche Scientifique (FNRS)
- Created
-
2015-05-20Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 6693