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Proceedings Paper

MUSE image slicer: test results on largest slicer ever manufactured
Author(s): Florence Laurent; Edgard Renault; Johan Kosmalski; Louisa Adjali; Didier Boudon; Roland Bacon; Patrick Caillier; Alban Remillieux; Yves Salaun; Bernard Delabre
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Paper Abstract

An image slicer breadboard has been designed, manufactured and tested for MUSE (Multi Unit Spectroscopic Explorer) instrument, a second generation integral field spectrograph developed for the European Southern Observatory (ESO) for the VLT. MUSE is operating in the visible and near IR wavelength range (0.465-0.93 μm) and is composed of 24 identical Integral Field Units; each one incorporates an advanced image slicer associated with a classical spectrograph. This paper describes the original optical design, the manufacturing, component test results (shape, roughness, reflectivity, microscopic visualization) and overall system performance (image quality, alignment) of the image slicer breadboard. This one is a combination of two mirror arrays of 48 elements each. It is made of Zerodur and uses a new polishing approach where all individual optical components are polished together by classical method. This image slicer constitutes the first one which has the largest number of active slices (48) associated with strict tolerances in term of positioning. The main results of the tests on this image slicer breadboard will then be presented. Most of them are compliant with requirements. This demonstrates that the manufacturing process is mature and gives good confidence for serial production applied to MUSE instrument.

Paper Details

Date Published: 18 July 2008
PDF: 12 pages
Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70180J (18 July 2008); doi: 10.1117/12.789285
Show Author Affiliations
Florence Laurent, Univ. de Lyon 1, Ctr. de Recherche Astronomique de Lyon (France)
CNRS, UMR 5574, Ecole Normale Supérieure de Lyon (France)
Edgard Renault, Univ. de Lyon 1, Ctr. de Recherche Astronomique de Lyon (France)
CNRS, UMR 5574, Ecole Normale Supérieure de Lyon (France)
Johan Kosmalski, Univ. de Lyon 1, Ctr. de Recherche Astronomique de Lyon (France)
CNRS, UMR 5574, Ecole Normale Supérieure de Lyon (France)
Louisa Adjali, Univ. de Lyon 1, Ctr. de Recherche Astronomique de Lyon (France)
CNRS, UMR 5574, Ecole Normale Supérieure de Lyon (France)
Didier Boudon, Univ. de Lyon 1, Ctr. de Recherche Astronomique de Lyon (France)
CNRS, UMR 5574, Ecole Normale Supérieure de Lyon (France)
Roland Bacon, Univ. de Lyon 1, Ctr. de Recherche Astronomique de Lyon (France)
CNRS, UMR 5574, Ecole Normale Supérieure de Lyon (France)
Patrick Caillier, Univ. de Lyon 1, Ctr. de Recherche Astronomique de Lyon (France)
CNRS, UMR 5574, Ecole Normale Supérieure de Lyon (France)
Alban Remillieux, Univ. de Lyon 1, Ctr. de Recherche Astronomique de Lyon (France)
CNRS, UMR 5574, Ecole Normale Supérieure de Lyon (France)
Yves Salaun, WINLIGHT-OPTICS (France)
Bernard Delabre, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 7018:
Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

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