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Scalable photonic-based nulling interferometry with the dispersed multi-baseline GLINT instrument

Martinod, Marc-Antoine and Norris, Barnaby and Tuthill, Peter and Lagadec, Tiphaine and Jovanovic, Nemanja and Cvetojevic, Nick and Gross, Simon and Arriola, Alexander and Gretzinger, Thomas and Withford, Michael J. and Guyon, Olivier and Lozi, Julien and Vievard, Sébastien and Deo, Vincent and Lawrence, Jon S. and Leon-Saval, Sergio (2021) Scalable photonic-based nulling interferometry with the dispersed multi-baseline GLINT instrument. Nature Communications, 12 . Art. No. 2465. ISSN 2041-1723. doi:10.1038/s41467-021-22769-x. https://resolver.caltech.edu/CaltechAUTHORS:20210507-121301435

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Abstract

Characterisation of exoplanets is key to understanding their formation, composition and potential for life. Nulling interferometry, combined with extreme adaptive optics, is among the most promising techniques to advance this goal. We present an integrated-optic nuller whose design is directly scalable to future science-ready interferometric nullers: the Guided-Light Interferometric Nulling Technology, deployed at the Subaru Telescope. It combines four beams and delivers spatial and spectral information. We demonstrate the capability of the instrument, achieving a null depth better than 10⁻³ with a precision of 10⁻⁴ for all baselines, in laboratory conditions with simulated seeing applied. On sky, the instrument delivered angular diameter measurements of stars that were 2.5 times smaller than the diffraction limit of the telescope. These successes pave the way for future design enhancements: scaling to more baselines, improved photonic component and handling low-order atmospheric aberration within the instrument, all of which will contribute to enhance sensitivity and precision.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1038/s41467-021-22769-xDOIArticle
https://github.com/SydneyAstrophotonicInstrumentationLab/GLINTPipelineRelated ItemCode
https://glintpipeline.readthedocs.io/en/latest/Related ItemDocumentation
ORCID:
AuthorORCID
Martinod, Marc-Antoine0000-0002-0989-9302
Norris, Barnaby0000-0002-8352-7515
Lagadec, Tiphaine0000-0001-8676-7007
Jovanovic, Nemanja0000-0001-5213-6207
Cvetojevic, Nick0000-0002-7465-4176
Gross, Simon0000-0001-5130-183X
Gretzinger, Thomas0000-0001-5712-5101
Guyon, Olivier0000-0002-1097-9908
Lozi, Julien0000-0002-3047-1845
Vievard, Sébastien0000-0003-4018-2569
Leon-Saval, Sergio0000-0002-5606-3874
Additional Information:© The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. Received 16 August 2020; Accepted 29 March 2021; Published 29 April 2021. This work was supported by the Australian Research Council Discovery Project DP180103413. Critical fabrication was performed in part at the OptoFab node of the Australian National Fabrication Facility utilising Commonwealth as well as NSW state government funding. S.G. acknowledges funding through a Macquarie University Research Fellowship (9201300682) and the Australian Research Council Discovery Program (DE160100714). N.C. acknowledges funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement CoG - 683029). The authors acknowledge support from the JSPS (Grant-in-Aid for Research # 23340051, # 26220704 # 23103002). This work was supported by the Astrobiology Center (ABC) of the National Institutes of Natural Sciences, Japan and the director’s contingency fund at Subaru Telescope. This research is based on data collected at Subaru Telescope, which is operated by the National Astronomical Observatory of Japan. The development of SCExAO was supported by the Japan Society for the Promotion of Science (Grant-in-Aid for Research # 23340051, # 26220704, # 23103002, # 19H00703, # 19H00695), the Astrobiology Center of the National Institutes of Natural Sciences, Japan, the Mt Cuba Foundation and the director’s contingency fund at Subaru Telescope. The authors wish to recognise and acknowledge the very significant cultural role and reverence that the summit of Maunakea has always had within the indigenous Hawaiian community, and are most fortunate to have the opportunity to conduct observations from this mountain. Data availability: The data produced in this study are available from the corresponding author on reasonable request. Code availability: The code of the data reduction of GLINT is available on Github36: https://github.com/SydneyAstrophotonicInstrumentationLab/GLINTPipeline. The documentation is hosted on the platform Readthedoc.org: https://glintpipeline.readthedocs.io/en/latest/. Author Contributions: M.-A.M. characterised the instrument, developed the data-analysis pipeline, and led most aspects of this observational campaign. The initial GLINT instrument design was developed by B.N. and P.T. N.C., S.G., A.A., N.J., T.L., B.N., S.L.S. and P.T. contributed to the design, construction, testing, and initial on-sky deployment of the GLINT module on SCExAO, in collaboration with O.G., J.L., S.V. and V.D. The photonic chip was designed and manufactured by S.G. and T.L., building upon work by A.A., and with resources, support and expertise contributed by T.G., M.J.W., and J.S.L. All authors contributed to the text and interpretation. The authors declare no competing interests. Peer review information: Nature Communications thanks the anonymous reviewer(s) for their contribution to the peer review of this work.
Funders:
Funding AgencyGrant Number
Australian Research CouncilDP180103413
Commonwealth of AustraliaUNSPECIFIED
Macquarie University9201300682
Australian Research CouncilDE160100714
European Research Council (ERC)683029
Japan Society for the Promotion of Science (JSPS)23340051
Japan Society for the Promotion of Science (JSPS)26220704
Japan Society for the Promotion of Science (JSPS)23103002
National Institutes of Natural Sciences of JapanUNSPECIFIED
Subaru TelescopeUNSPECIFIED
Japan Society for the Promotion of Science (JSPS)23340051
Japan Society for the Promotion of Science (JSPS)26220704
Japan Society for the Promotion of Science (JSPS)23103002
Japan Society for the Promotion of Science (JSPS)19H00703
Japan Society for the Promotion of Science (JSPS)19H00695
Mt. Cuba Astronomical FoundationUNSPECIFIED
Subject Keywords:Astronomical instrumentation; Integrated optics
DOI:10.1038/s41467-021-22769-x
Record Number:CaltechAUTHORS:20210507-121301435
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20210507-121301435
Official Citation:Martinod, MA., Norris, B., Tuthill, P. et al. Scalable photonic-based nulling interferometry with the dispersed multi-baseline GLINT instrument. Nat Commun 12, 2465 (2021). https://doi.org/10.1038/s41467-021-22769-x
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:109009
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:07 May 2021 19:47
Last Modified:07 May 2021 19:47

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