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26 September 2013 SPHERE-ZIMPOL system testing: status report on polarimetric high contrast results
Ronald Roelfsema, Daniel Gisler, Johan Pragt, Hans Martin Schmid, Andreas Bazzon, Carsten Dominik, Andrea Baruffolo, Anthonoy Boccaletti, Jean-Luc Beuzit, Anne Costille, Kjetil Dohlen, Mark Downing, Eddy Elswijk, Menno de Haan, Norbert Hubin, Markus Kasper, Christoph Keller, Matthew Kenworthy, Jean-Louis Lizon, Patrice Martinez, David Mouillet, Alexey Pavlov, Pascal Puget, Bernardo Salasnich, Jean-Francois Sauvage, Christian Thalmann, Francois Wildi
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Proceedings Volume 8864, Techniques and Instrumentation for Detection of Exoplanets VI; 88640C (2013) https://doi.org/10.1117/12.2023600
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States
Abstract
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.
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Ronald Roelfsema, Ronald Roelfsema, Daniel Gisler, Daniel Gisler, Johan Pragt, Johan Pragt, Hans Martin Schmid, Hans Martin Schmid, Andreas Bazzon, Andreas Bazzon, Carsten Dominik, Carsten Dominik, Andrea Baruffolo, Andrea Baruffolo, Anthonoy Boccaletti, Anthonoy Boccaletti, Jean-Luc Beuzit, Jean-Luc Beuzit, Anne Costille, Anne Costille, Kjetil Dohlen, Kjetil Dohlen, Mark Downing, Mark Downing, Eddy Elswijk, Eddy Elswijk, Menno de Haan, Menno de Haan, Norbert Hubin, Norbert Hubin, Markus Kasper, Markus Kasper, Christoph Keller, Christoph Keller, Matthew Kenworthy, Matthew Kenworthy, Jean-Louis Lizon, Jean-Louis Lizon, Patrice Martinez, Patrice Martinez, David Mouillet, David Mouillet, Alexey Pavlov, Alexey Pavlov, Pascal Puget, Pascal Puget, Bernardo Salasnich, Bernardo Salasnich, Jean-Francois Sauvage, Jean-Francois Sauvage, Christian Thalmann, Christian Thalmann, Francois Wildi, Francois Wildi, "SPHERE-ZIMPOL system testing: status report on polarimetric high contrast results ", Proc. SPIE 8864, Techniques and Instrumentation for Detection of Exoplanets VI, 88640C (26 September 2013); doi: 10.1117/12.2023600; https://doi.org/10.1117/12.2023600
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