SHARK-VIS ready for the stars: instrument description and final laboratory performance test

Fernando Pedichini; Roberto Piazzesi; Giorgio Viavattene; Simone Antoniucci; Manuele Gangi; Gianluca Li Causi; Massimiliano Mattioli; Marco Stangalini; Alessandro Terreri; Vincenzo Testa; Enrico Pinna; Runa Briguglio; Guido Agapito; Alfio Puglisi; Jacopo Farinato; Maria Bergomi

doi:10.1117/12.2629244

29 August 2022 SHARK-VIS ready for the stars: instrument description and final laboratory performance test

Fernando Pedichini, Roberto Piazzesi, Giorgio Viavattene, Simone Antoniucci, Manuele Gangi, Gianluca Li Causi, Massimiliano Mattioli, Marco Stangalini, Alessandro Terreri, Vincenzo Testa, Enrico Pinna, Runa Briguglio, Guido Agapito, Alfio Puglisi, Jacopo Farinato, Maria Bergomi

Author Affiliations +

Proceedings Volume 12185, Adaptive Optics Systems VIII; 121856Q (2022) https://doi.org/10.1117/12.2629244
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

SHARK-VIS the Large Binocular Telescope (LBT) forthcoming optical high-contrast imager is completed and will soon see its first light. Thanks to the high performances of SOUL, the new LBT adaptive optics (AO) system, SHARK-VIS will extend the capabilities of one arm of the binocular telescope down to 400 nm, delivering spatial resolutions (≈ 15 mas) that in the infrared bands will be achieved only by future extremely large telescopes (ELTs). This document describes the instrument and its final laboratory test that assessed the expected performances. End to End test, done on a dedicated test-bench resembling on sky conditions, showed the capability to detect faint target with contrast lower than 10⁻⁴ at only 50mas away from a magR 12 point like source.

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Fernando Pedichini, Roberto Piazzesi, Giorgio Viavattene, Simone Antoniucci, Manuele Gangi, Gianluca Li Causi, Massimiliano Mattioli, Marco Stangalini, Alessandro Terreri, Vincenzo Testa, Enrico Pinna, Runa Briguglio, Guido Agapito, Alfio Puglisi, Jacopo Farinato, and Maria Bergomi "SHARK-VIS ready for the stars: instrument description and final laboratory performance test", Proc. SPIE 12185, Adaptive Optics Systems VIII, 121856Q (29 August 2022); https://doi.org/10.1117/12.2629244

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