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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 693493.0, MPI für Astronomie / Publikationen_mpia
SPHERE-ZIMPOL system testing: status report on polarimetric high contrast results
Authors:Roelfsema, R.; Gisler, D.; Pragt, J.; Schmid, H. M.; Bazzon, A.; Dominik, C.; Baruffolo, A.; Boccaletti, A.; Beuzit, J.-L.; Costille, A.; Dohlen, K.; Downing, M.; Elswijk, E.; de Haan, M.; Hubin, N.; Kasper, M.; Keller, C.; Kenworthy, M.; Lizon, J.-L.; Martinez, P.; Mouillet, D.; Pavlov, A.; Puget, P.; Salasnich, B.; Sauvage, J.-F.; Thalmann, C.; Wildi, F.
Publisher:SPIE
Date of Publication (YYYY-MM-DD):2013
Title of Proceedings:Techniques and Instrumentation for Detection of Exoplanets VI
Start Page:id. 88640C (20 pp)
Volume (in Series):8864
Name of Conference/Meeting:Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
Audience:Not Specified
Abstract / Description:SPHERE (Spectro-Polarimetric High Contrast Exoplanet Research) is one of the first instruments which aim for the direct detection from extra-solar planets. SPHERE commissioning is foreseen in 2013 on the VLT. ZIMPOL (Zurich Imaging Polarimeter) is the high contrast imaging polarimeter subsystem of the ESO SPHERE instrument. ZIMPOL is dedicated to detect the very faint reflected and hence polarized visible light (600-900 nm) from extrasolar planets. It is located behind an extreme AO system (SAXO) and a stellar coronagraph. We present the first high contrast polarimetric results obtained for the fully integrated SPHERE-ZIMPOL system. We have measured the polarimetric high contrast performance of several coronagraphs: a Classical Lyot on substrate, a suspended Classical Lyot and two 4 Quadrant Phase Mask coronagraphs. We describe the impact of crucial system parameters - Adaptive Optics, Coronagraphy and Polarimetry - on the contrast performance.
Comment of the Author/Creator:Date: 2013, September 1, 2013
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://cdsads.u-strasbg.fr/abs/2013SPIE.8864E..0CR
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