10 August 2010 Opto-mechanical design of a DMD multislit spectrograph for the ESA Euclid Mission
Author Affiliations +
Abstract
The Euclid mission proposed in the context of the ESA Cosmic Vision program is aimed to study the challenging problem of the Dark Energy, responsible of the acceleration of the Universe. One of the three probes of Euclid is dedicated to study the Baryonic Acoustic Oscillations by means of spectroscopic observations of millions of galaxies in the Near Infrared. One option for the Euclid Near Infrared Spectrograph (ENIS) is a multi-slit approach based on Digital Micromirror Device (DMD) used as reconfigurable slit mask. The Texas Instrument 2048*1080 DMD with 13.68 micrometers pitch has been chosen. ENIS optical design is composed of four arms each using one DMD to cover a total FOV of 0.48 square degree. The fore-optic design has to cope with the difficult task of having simultaneously a fast beam (F/2.7) and a quasi-diffraction limited image on a 24 deg tilted plane. The compact three mirrors spectrograph is using a grism in convergent beam for simplicity and compactness purposes. From the optical design, the mechanical structure is based on a common carbon honeycomb bench to reach the challenging requirements of volume and mass.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Grange, R. Grange, F. Zamkotsian, F. Zamkotsian, L. Martin, L. Martin, T. Pamplona, T. Pamplona, O. Le Fevre, O. Le Fevre, L. Valenziano, L. Valenziano, F. M. Zerbi, F. M. Zerbi, A. Cimatti, A. Cimatti, } "Opto-mechanical design of a DMD multislit spectrograph for the ESA Euclid Mission", Proc. SPIE 7731, Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave, 77312Z (10 August 2010); doi: 10.1117/12.857148; https://doi.org/10.1117/12.857148
PROCEEDINGS
10 PAGES


SHARE
RELATED CONTENT

The opto mechanical design for GMOX a next generation...
Proceedings of SPIE (August 08 2016)
The optical design of GMOX a next generation instrument...
Proceedings of SPIE (August 18 2016)
Programmable wide field spectrograph for earth observation
Proceedings of SPIE (November 16 2017)
The E NIS instrument on board the ESA Euclid Dark...
Proceedings of SPIE (August 05 2010)
EUCLID: design of the prism DMD NIR spectrograph
Proceedings of SPIE (August 10 2010)
CARMENES. II: optical and opto-mechanical design
Proceedings of SPIE (September 23 2012)

Back to Top