GLINT South: a photonic nulling interferometer pathfinder at the Anglo-Australian Telescope for high contrast imaging of substellar companions

Tiphaine Lagadec; Barnaby Norris; Simon Gross; Alexander Arriola; Thomas Gretzinger; Nick Cvetojevic; Jon Lawrence; Michael Withford; Peter Tuthill

doi:10.1117/12.2313171

9 July 2018 GLINT South: a photonic nulling interferometer pathfinder at the Anglo-Australian Telescope for high contrast imaging of substellar companions

Tiphaine Lagadec, Barnaby Norris, Simon Gross, Alexander Arriola, Thomas Gretzinger, Nick Cvetojevic, Jon Lawrence, Michael Withford, Peter Tuthill

Author Affiliations +

Proceedings Volume 10701, Optical and Infrared Interferometry and Imaging VI; 107010V (2018) https://doi.org/10.1117/12.2313171
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

With many thousands of exoplanets discovered one of the important next steps in astronomy is to be able to characterise them. This presents a great challenge and calls for new observational capabilities with both high angular resolution and extreme high contrast in order to efficiently separate the bright light of a host star to that of a faint companion. Glint South is an instrument that uses photonic technology to perform nulling interferometry. The light of a star is cancelled out by means of destructive interference in a photonic chip. One of the challenges is the star light injection into the chip. This is done by a unique active system that optimises the injection and provide low order correction for the atmospheric turbulence. We are reporting on the latest progress following several tests on the Anglo Australian Telescope.

Conference Presentation

Citation Download Citation

Tiphaine Lagadec, Barnaby Norris, Simon Gross, Alexander Arriola, Thomas Gretzinger, Nick Cvetojevic, Jon Lawrence, Michael Withford, and Peter Tuthill "GLINT South: a photonic nulling interferometer pathfinder at the Anglo-Australian Telescope for high contrast imaging of substellar companions", Proc. SPIE 10701, Optical and Infrared Interferometry and Imaging VI, 107010V (9 July 2018); https://doi.org/10.1117/12.2313171

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