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30 September 2013 ESPRESSO APSU: simplify the life of pupil slicing
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Abstract
This paper presents the Espresso Anamorphic pupil Slicer (APSU) implementation. ESPRESSO, the Echelle SPectrograph for Rocky Exoplanets and Stable Spectroscopic Observations, will be installed on ESOs Very Large Telescope (VLT). In this work we will present the design and trade-off for the pupil slicing system introduced in order to increase the resolving power, effectively decreasing slit width. Its based onto simplified optical component that introduce large anamorphism while keeping low aberrations by means of cylindrical optics. We describe here the trade-off between slicing through two adjacent squared doublets and two achromatic prisms.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
P. Conconi, M. Riva, F. Pepe, F. M. Zerbi, A. Cabral, S. Cristiani, D. Megevand, M. Landoni, and P. Spanó "ESPRESSO APSU: simplify the life of pupil slicing", Proc. SPIE 8842, Novel Optical Systems Design and Optimization XVI, 88420P (30 September 2013); https://doi.org/10.1117/12.2024843
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