Scalable photonic-based nulling interferometry with the dispersed multi-baseline GLINT instrument
| العنوان: | Scalable photonic-based nulling interferometry with the dispersed multi-baseline GLINT instrument |
|---|---|
| المؤلفون: | Simon Gross, Vincent Deo, Peter G. Tuthill, Sébastien Vievard, Sergio G. Leon-Saval, Marc-Antoine Martinod, Jon Lawrence, Thomas Gretzinger, Tiphaine Lagadec, Olivier Guyon, Nick Cvetojevic, Michael J. Withford, Barnaby Norris, Alexander Arriola, Julien Lozi, Nemanja Jovanovic |
| المصدر: | Nature Communications Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021) |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Computer science, Science, General Physics and Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, General Biochemistry, Genetics and Molecular Biology, Article, Astronomical instrumentation, law.invention, 010309 optics, Telescope, General Relativity and Quantum Cosmology, Optics, Angular diameter, law, 0103 physical sciences, Adaptive optics, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Nuller, Multidisciplinary, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Integrated optics, General Chemistry, Exoplanet, Interferometry, Photonics, business, Subaru Telescope |
| الوصف: | 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. Nulling interferometry is a technique combining lights from different telescopes or apertures to observe weak sources nearby bright ones. The authors report the first nulling interferometer implemented in a photonic chip doing spectrally dispersed nulling on several baselines, simultaneously. |
| وصف الملف: | application/pdf |
| تدمد: | 2041-1723 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82c4dcfff76280230fca74ca412a5314 https://pubmed.ncbi.nlm.nih.gov/33927206 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....82c4dcfff76280230fca74ca412a5314 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20411723 |
|---|