Conceptual opto-mechanical design of SHARP: a near-infrared multi-mode spectrograph conceived for the next-generation telescopes
The next generation of Extremely Large Telescopes (ELTs), with their wide apertures and advanced multi-conjugate adaptive optics (MCAO) systems, will provide unprecedented sharp and deep observations, even surpassing the capabilities of the James Webb Space Telescope. SHARP, a near-infrared (0.95 to 2.45 μm) spectrograph, is designed to optimally exploit the collecting area and angular resolution of these forthcoming ELTs and specifically optimized for the MCAO unit MORFEO at the ELT. SHARP includes two main units: NEXUS, a multi-object spectrograph, and VESPER, a multi-integral field unit. We outline the opto-mechanical design of SHARP based on the scientific requirements of the project. The optical design is engineered to meet project specifications, featuring a compact mechanical structure that minimizes the required cryogenic power while ensuring ease of access for maintenance and straightforward assembly procedures.
Authors
- Vincenzo Cianniello (ORCID: https://orcid.org/0000-0003-1111-3628)
- Ivan Di Antonio (ORCID: https://orcid.org/0000-0003-3260-4389)
- Vincenzo De Caprio (ORCID: https://orcid.org/0000-0002-4587-8963)
- P. Franzetti (ORCID: https://orcid.org/0000-0002-6986-0127)
- P. Saracco (ORCID: https://orcid.org/0000-0003-3959-2595)
- Marcello Agostino Scalera
- Bortolino Saggin (ORCID: https://orcid.org/0000-0002-4033-3585)
- Davide Greggio (ORCID: https://orcid.org/0000-0002-6727-2049)
- Elisa Portaluri (ORCID: https://orcid.org/0000-0002-1242-7242)
- Carmelo Arcidiacono (ORCID: https://orcid.org/0000-0003-0142-8108)
- E. Cascone (ORCID: https://orcid.org/0000-0002-7425-7517)
- Christian Eredia (ORCID: https://orcid.org/0000-0003-3925-2427)
- Ilaria Arosio
- E. Molinari (ORCID: https://orcid.org/0000-0002-1742-7735)
- P. Conconi
- M. Fumana
- Benedetta Di Francesco
- Hossein Mahmoodzadeh
- Diego Scaccabarozzi
- Marco Riva
- Gianluca Di Rico (ORCID: https://orcid.org/0000-0002-5213-8269)
Institutions
- Astronomical Observatory of Capodimonte (IT)
- Brera Astronomical Observatory (IT)
- Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano (IT)
- Collurania Teramo Observatory (IT)
- Osservatorio Astronomico di Padova (IT)
- National Institute for Astrophysics (IT)
- Politecnico di Milano (IT)
Publication Details
- Journal
- Journal of Astronomical Telescopes Instruments and Systems
- Published
- 2025-07-24
- DOI
- https://doi.org/10.1117/1.jatis.11.3.035002
- Primary Topic
- Astronomy and Astrophysical Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00