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An N-band test benc...
An N-band test bench for the METIS coronagraphic masks
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- Ronayette, Samuel (author)
- CEA Saclay, France
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- Mouzali, Salima (author)
- CEA Saclay, France
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- Barrière, Jean-Christophe (author)
- CEA Saclay, France
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- Pantin, Éric (author)
- CEA Saclay, France
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- Orduna, Thierry (author)
- CEA Saclay, France
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- Gallais, Pascal (author)
- CEA Saclay, France
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- Lortholary, Michel (author)
- CEA Saclay, France
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- Dumaye, Luc (author)
- CEA Saclay, Franc
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- Absil, Olivier (author)
- University of Liège, Belgium
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- Delacroix, Christian (author)
- University of Liège, Belgium
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- Ives, Derek (author)
- European Southern Observatory, Germany
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- Karlsson, Mikael (author)
- Uppsala universitet,Tillämpad materialvetenskap
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(creator_code:org_t)
- SPIE-Intl Soc Optical Eng, 2020
- 2020
- English.
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In: Ground-based and Airborne Instrumentation for Astronomy VIII. - : SPIE-Intl Soc Optical Eng. ; , s. 1-15
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https://www.spiedigi...
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https://orbi.uliege....
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- METIS is one of the first three instruments for the ELT, Europe's next-generation ground-based telescope. It will offer imaging, coronagraphy and spectroscopy in the L, M and N bands for general-purpose science in astrophysics. Among its main science drivers are circumstellar disks and extrasolar planets observations, which requires demanding high contrast imaging techniques. In that framework, METIS will be equipped with state-of-the-art phase mask coronagraphs: Apodizing Phase Plate (APP) and Annular Grooves Phase Mask (AGPM). Manufacturing the AGPM coronagraphs is a complex process that requires performance assessment with specific testing before implementation into the instrument. At Department of Astrophysics (CEA Saclay, France), responsible for the testing of the N-band AGPMs, a previously available test bench with a telescope simulator and cryogenic facility has been upgraded to comply with the AGPM tests requirements. This paper presents these requirements and describes the test bench design adopted. Then, based on preliminary results, we discuss the original solutions that permitted to reach our goals.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publication and Content Type
- ref (subject category)
- kon (subject category)
To the university's database
- By the author/editor
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Ronayette, Samue ...
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Mouzali, Salima
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Barrière, Jean-C ...
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Pantin, Éric
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Orduna, Thierry
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Gallais, Pascal
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show more...
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Lortholary, Mich ...
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Dumaye, Luc
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Absil, Olivier
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Delacroix, Chris ...
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Ives, Derek
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Karlsson, Mikael
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
- Articles in the publication
- Ground-based and ...
- By the university
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Uppsala University