activity
20182026
most citedHeimdallr, Baldr and Solarstein: designing the next generation of VLTI instruments in the Asgard suite

15 citations · 28 across the 11 of their papers we have counts for

collaborators

11 papers

astro-ph.IM2026

Pushing high angular resolution and high contrast observations on the VLTI from Y to L band with the Asgard instrumental suite: integration status and plans

Marc-Antoine Martinod, Michael J. Ireland, Denis Defrère +39

ESO's VLTI has a history of record-breaking discoveries in astrophysics using high-angular resolution instrumentation. Its latest visitor instrument, the Asgard instrumental suite,…

physics.optics2026

Overcoming the low signal-to-noise problem for hybrid mode-selective photonic lantern-based wavefront correction using machine learning

Nathan K Long, Barnaby Norris, Daniel S Dahl +10

Hybrid mode-selective photonic lanterns transform an input complex point-spread function into several single-mode outputs, where a selected core feeds the fundamental mode to a pho…

physics.optics2026

Seidr update: photonic 'black magic' for high-contrast interferometry using kernel-nulling and photonic lanterns

Nathan K Long, Daniel S Dahl, Christopher H Betters +13

Seidr is a new interferometric beam combiner within the Asgard Suite, utilizing infrastructure common to the BIFROST instrument at the Very Large Telescope Interferometer. Seidr co…

physics.optics2026

Empirical verification of principal mode orthogonality and relative phase calibration in photonic lanterns

Adam K. Taras, Barnaby R. M. Norris, Christopher Betters +6

Photonic lanterns efficiently map input spatial modes to single-mode outputs for applications like high angular resolution imaging and nulling interferometry. However, manufacturin…

astro-ph.IM2026

The TOLIMAN mission: A low-cost space telescope for high precision narrow-angle astrometry

Peter Tuthill, Christopher Betters, Max Charles +29

The TOLIMAN project is engaged with the construction, launch and operation of a low-cost space telescope of unorthodox optical design. Its primary science goal targets an exhaustiv…

physics.optics2025★ 1 cited

Illuminating the lantern: coherent, spectro-polarimetric characterisation of a multimode converter

Adam K. Taras, Barnaby R. M. Norris, Christopher Betters +4

While photonic lanterns efficiently and uniquely map a set of input modes to single-mode outputs (or vice versa), the optical mode transfer matrix of any particular fabricated devi…

astro-ph.IM2025

Jewel Optics I: non-redundant Fizeau beam combination without the guilt

Adam K. Taras, Grace Piroscia, Peter Tuthill

The enduring technique of aperture masking interferometry, now more than 150 years old, is still widely practised today for it opens a window of high angular resolution astronomy t…

astro-ph.IM2024★ 2 cited

Pushing high angular resolution and high contrast observations on the VLTI from Y to L band with the Asgard instrumental suite: integration status and plans

Marc-Antoine Martinod, Denis Defrère, Michael J. Ireland +35

ESO's Very Large Telescope Interferometer has a history of record-breaking discoveries in astrophysics and significant advances in instrumentation. The next leap forward is its new…

astro-ph.IM2024

Heimdallr and Solarstein: alignment, calibration, and correction in the Asgard suite at the VLTI

Adam K. Taras, J. Gordon Robertson, Josh Carter +5

The Asgard instrument suite proposed for the ESO's Very Large Telescope Interferometer (VLTI) brings with it a new generation of instruments for spectroscopy and nulling. Asgard wi…

astro-ph.IM2024★ 15 cited

Heimdallr, Baldr and Solarstein: designing the next generation of VLTI instruments in the Asgard suite

Adam K. Taras, J. Gordon Robertson, Fatme Allouche +11

High angular resolution imaging is an increasingly important capability in contemporary astrophysics. Of particular relevance to emerging fields such as the characterisation of exo…

astro-ph.IM2018★ 10 cited

Multiplexed Holographic Aperture Masking with liquid-crystal geometric phase masks

David S. Doelman, Peter Tuthill, Barnaby Norris +5

Sparse Aperture Masking (SAM) allows for high-contrast imaging at small inner working angles, however the performance is limited by the small throughput and the number of baselines…