Curved detector-based optical design for the VLT/BlueMUSE instrument

Alexandre Jeanneau; Johan Kosmalski; Eduard Muslimov; Emmanuel Hugot; Roland Bacon; Johan Richard

doi:10.1117/12.2561684

13 December 2020 Curved detector-based optical design for the VLT/BlueMUSE instrument

Alexandre Jeanneau, Johan Kosmalski, Eduard Muslimov, Emmanuel Hugot, Roland Bacon, Johan Richard

Proceedings Volume 11447, Ground-based and Airborne Instrumentation for Astronomy VIII; 114475M (2020) https://doi.org/10.1117/12.2561684
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

BlueMUSE (Blue Multi Unit Spectroscopic Explorer) is a blue-optimised, medium spectral resolution, panoramic integral field spectrograph proposed for the Very Large Telescope (VLT) and based on the MUSE concept. BlueMUSE will open up a new range of galactic and extragalactic science cases allowed by its specific capabilities in the 350 - 580 nm range: an optimised end-to-end transmission down to 350 nm, a larger FoV (up to 1.4 x 1.4 arcmin²) sampled at 0.3 arcsec, and a higher spectral resolution (λ/Δλ ~ 3500) compared to MUSE. To our knowledge, achieving such capabilities with a comparable mechanical footprint and an identical detector format (4k x 4k, 15 µm CCD) would not be possible with a conventional spectrograph design. In this paper, we present the optomechanical architecture and design of BlueMUSE at pre-phase A level, with a particular attention to some original aspects such as the use of curved detectors.

Conference Presentation

Citation Download Citation

Alexandre Jeanneau, Johan Kosmalski, Eduard Muslimov, Emmanuel Hugot, Roland Bacon, and Johan Richard "Curved detector-based optical design for the VLT/BlueMUSE instrument", Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII, 114475M (13 December 2020); https://doi.org/10.1117/12.2561684

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