Asgard/NOTT: first lab assembly and experimental results

G. Garreau; A. Bigioli; R. Laugier; B. La Torre; M.-A. Martinod; K. Missiaen; J. Morren; G. Raskin; M. Salman; S. Gross; M. Ireland; A. P. Joó; L. Labadie; S. Madden; A. Mazzoli; G. Medgyesi; A. Sanny; A. Taras; B. Vandenbussche; D. Defrère

doi:10.1117/12.3017111

28 August 2024 Asgard/NOTT: first lab assembly and experimental results

G. Garreau, A. Bigioli, R. Laugier, B. La Torre, M.-A. Martinod, K. Missiaen, J. Morren, G. Raskin, M. Salman, S. Gross, M. Ireland, A. P. Joó, L. Labadie, S. Madden, A. Mazzoli, G. Medgyesi, A. Sanny, A. Taras, B. Vandenbussche, D. Defrère

Author Affiliations +

Proceedings Volume 13095, Optical and Infrared Interferometry and Imaging IX; 130950P (2024) https://doi.org/10.1117/12.3017111
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

Asgard/NOTT is an ERC-funded project hosted at KU Leuven and is part of a new visitor instrumental suite, called Asgard, under preparation for the Very Large Telescope Interferometer (VLTI). Leveraging nulling capabilities and the long VLTI baselines, it is optimized for high-contrast imaging of the snow line region around young nearby main-sequence stars. This will enable the characterization of the atmosphere of young giant exoplanets and warm/hot exozodiacal dust with spectroscopy in the L’-band (3.5-4.0μm). In this work, we present the first lab assembly of the instrument done at KU Leuven and the technical solutions to tackle the challenge of performing nulling in the mid-infrared despite the thermal background. The opto-mechanical design of the warm optics and the injection system for the photonic chip are described. The alignment procedure used to assemble the system is also presented. Finally, the first experimental results, including fringes and null measurements, are given and confirm the adequacy of the bench to test and optimize the Asgard/NOTT instrument.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

G. Garreau, A. Bigioli, R. Laugier, B. La Torre, M.-A. Martinod, K. Missiaen, J. Morren, G. Raskin, M. Salman, S. Gross, M. Ireland, A. P. Joó, L. Labadie, S. Madden, A. Mazzoli, G. Medgyesi, A. Sanny, A. Taras, B. Vandenbussche, and D. Defrère "Asgard/NOTT: first lab assembly and experimental results", Proc. SPIE 13095, Optical and Infrared Interferometry and Imaging IX, 130950P (28 August 2024); https://doi.org/10.1117/12.3017111

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