The MICADO first light imager for the ELT: off-axis performance of PSF reconstruction
: Simioni, Matteo; Jodlbauer, Daniel; Arcidiacono, Carmelo; Grazian, Andrea; Gullieuszik, Marco; Portaluri, Elisa; Vulcani, Benedetta; Wagner, Roland; Zanella, Anita; Hartke, Johanna; Helin, Tapio; Kuncarayakti, Hanindyo; Masciadri, Elena; Pedichini, Fernando; Piazzesi, Roberto; Turchi, Alessio; Vaccari, Piero
: Jackson, Kathryn J.; Schmidt, Dirk; Vernet, Elise
: SPIE Astronomical Telescopes + Instrumentation
Publisher: SPIE
: 2024
: Proceedings of SPIE : the International Society for Optical Engineering
: Adaptive Optics Systems IX
: Proceedings of SPIE - The International Society for Optical Engineering
: 130977C
: 13097
: 978-1-5106-7517-9
: 978-1-5106-7518-6
: 0277-786X
: 1996-756X
DOI: https://doi.org/10.1117/12.3017375
: https://doi.org/10.1117/12.3017375
: http://arxiv.org/pdf/2407.09201
The highest scientific return, for adaptive optics (AO) observations, is achieved with a reliable reconstruction of the PSF. This is especially true for MICADO@ELT. In this presentation, we will focus on extending the MICADO PSF reconstruction (PSF-R) method to the off-axis case. Specifically, a novel approach based on temporal-based tomography of AO telemetry data has been recently implemented. Results from the PSF-R of both simulated and real data show that, at half isoplanatic angle distances, a precision of about 10 − 15% is achievable in both Strehl ratio and full-width at half maximum, paving the way to extend the MICADO PSF-R tool also to the multi-conjugated AO case.
