The S4I prototype, a beam-slicer dedicated to the new generation Multichannel Subtractive Double Pass for EST imaging
spectropolarimetry

Frédéric Sayède; Pierre Mein; Jean-Marie Malherbe; Jean-Philippe Amans; Daniel Crussaire; Regis Lecocguen

doi:10.1117/12.2054947

28 July 2014 The S4I prototype, a beam-slicer dedicated to the new generation Multichannel Subtractive Double Pass for EST imaging spectropolarimetry

Frédéric Sayède, Pierre Mein, Jean-Marie Malherbe, Jean-Philippe Amans, Daniel Crussaire, Regis Lecocguen

Author Affiliations +

Proceedings Volume 9147, Ground-based and Airborne Instrumentation for Astronomy V; 91476F (2014) https://doi.org/10.1117/12.2054947
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

For the future European Solar Telescope (EST) the Observatoire de Paris proposes a new generation of MSDP, an imaging spectro-polarimetry instrument. To validate this new generation, we develop a plane micro-mirrors beam slicer prototype that is tested and validated on an optical bench and on existing telescopes. The prototype called S4I (Spectral Sampling with Slicer for Solar Instrumentation) is built and tested at the Observatoire de Paris. It validates the opto-mechanical feasibility of the new beam slicer. After a complete description of the system, we present the first images. We evaluate the performances of the prototype and compare them to the requirements for the beam-slicer dedicated to the future EST.

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Frédéric Sayède, Pierre Mein, Jean-Marie Malherbe, Jean-Philippe Amans, Daniel Crussaire, and Regis Lecocguen "The S4I prototype, a beam-slicer dedicated to the new generation Multichannel Subtractive Double Pass for EST imaging spectropolarimetry", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91476F (28 July 2014); https://doi.org/10.1117/12.2054947

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