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Proceedings Paper

ESPRESSO APSU: simplify the life of pupil slicing
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Paper 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.

Paper Details

Date Published: 30 September 2013
PDF: 9 pages
Proc. SPIE 8842, Novel Optical Systems Design and Optimization XVI, 88420P (30 September 2013); doi: 10.1117/12.2024843
Show Author Affiliations
P. Conconi, INAF - Osservatorio Astronomico di Brera (Italy)
M. Riva, INAF - Osservatorio Astronomico di Brera (Italy)
F. Pepe, Observatory of Geneva (Switzerland)
F. M. Zerbi, INAF - Osservatorio Astronomico di Brera (Italy)
A. Cabral, Univ. of Lisbon (Portugal)
S. Cristiani, INAF - Osservatorio Astronomico di Trieste (Italy)
D. Megevand, Observatory of Geneva (Switzerland)
M. Landoni, INAF - Osservatorio Astronomico di Brera (Italy)
Univ. degli Studi dell'Insubria (Italy)
P. Spanó, National Research Council Canada (Canada)

Published in SPIE Proceedings Vol. 8842:
Novel Optical Systems Design and Optimization XVI
G. Groot Gregory; Arthur J. Davis, Editor(s)

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