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Proceedings Paper

Optical design of a multi-resolution, single-shot spectrograph
Author(s): François Hénault; Florence Laurent
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Paper Abstract

Multi-object or integral field spectrographs today are recognized techniques for achieving simultaneous spectroscopic observations of different or extended sky objects with a high multiplex factor. In this communication is described a complementary approach for realizing similar measurements under different spectral resolutions at the same time. Herein is explained the basic principle of this new type of spectrometer, that is based on the utilization of an optical pupil slicer. An optical design inspired from an already studied instrument is then presented and commented for the sake of illustration. Technical issues about the pupil slicer and diffractive components are also discussed. We finally conclude on the potential advantages and drawbacks of the proposed system.

Paper Details

Date Published: 9 August 2016
PDF: 13 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99083S (9 August 2016); doi: 10.1117/12.2231280
Show Author Affiliations
François Hénault, Institut de Planétologie et d’Astrophysique de Grenoble (France)
Florence Laurent, Ctr. de Recherche Astrophysique de Lyon, Univ. Lyon, Univ. Lyon 1, CNRS (France)

Published in SPIE Proceedings Vol. 9908:
Ground-based and Airborne Instrumentation for Astronomy VI
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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