Dr. Marc-Antoine Martinod Profile

Dr. Marc-Antoine Martinod

Research Associate at KU Leuven

SPIE Involvement:

Author

Publications (40)

Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

The GLINT nulling interferometer: improving nulls for high-contrast imaging

Eckhart Spalding, Elizabeth Arcadi, Glen Douglass, Simon Gross, Olivier Guyon, Marc-Antoine Martinod, Barnaby Norris, Stephanie Rossini-Bryson, Adam Taras, Peter Tuthill, Kyohoon Ahn, Vincent Deo, Mona El Morsy, Julien Lozi, Sebastien Vievard, Michael Withford

Proceedings Volume 13095, 1309507 (2024) https://doi.org/10.1117/12.3016348

KEYWORDS: Waveguides, Telescopes, Nulling interferometry, Equipment, Stars, Phase shifts, Imaging systems, Design, Photonics, Glasses

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Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

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 Ireland, Stefan Kraus, Frantz Martinache, Peter Tuthill, Fatmé Allouche, Emilie Bouzerand, Julia Bryant, Josh Carter, Sorabh Chhabra, Benjamin Courtney-Barrer, Fred Crous, Nick Cvetojevic, Colin Dandumont, Steve Ertel, Tyler Gardner, Germain Garreau, Adrian Glauser, Xavier Haubois, Lucas Labadie, Stéphane Lagarde, Daniel Lancaster, Romain Laugier, Alexandra Mazzoli, Anthony Meilland, Kwinten Missiaen, Sebastien Morel, Daniel Mortimer, Barnaby Norris, Jyotirmay Paul, Gert Raskin, Sylvie Robbe-Dubois, J. Gordon Robertson, Ahmed Sanny, Nicolas Schuhler, Owain Snaith, Adam Taras

Proceedings Volume 13095, 130950D (2024) https://doi.org/10.1117/12.3016296

KEYWORDS: Equipment, Spectrographs, Sensors, Lawrencium, L band, Calibration, Nulling interferometry, Astronomical interferometers, Spatial resolution, Control software

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Proceedings Article | 28 August 2024 Poster + Paper

Poster + Paper

Asgard/NOTT: water vapor and CO2 atmospheric dispersion compensation system

Romain Laugier, Denis Defrère, Michael Ireland, Germain Garreau, Olivier Absil, Alexis Matter, Romain Petrov, Philippe Berio, Peter Tuthill, Lucas Labadie, Marc-Antoine Martinod

Proceedings Volume 13095, 130952C (2024) https://doi.org/10.1117/12.3018150

KEYWORDS: Glasses, Nulling interferometry, Zinc selenide, Prisms, L band, Design, Interferometers, Infrared radiation, Dispersion

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The direct detection of exoplanets and circumstellar disks is currently limited by a combination of high contrast and small angular separation. At the scale of single telescopes, these limitations are fought with coronagraphs, which remove the diffracted light from the central source. To obtain similar benefits with interferometry, one must employ specialized beam-combiners called interferometric nullers. Nullers discard the on-axis light and part of the astrophysical information to optimize the recording of light present in the dark fringe of the central source, which may contain light from circumstellar sources of interest. Asgard/NOTT will deploy an advanced beam-combination scheme offering favorable instrumental noise characteristics when the inputs are phased appropriately, although this tuning will require a specific strategy to overcome the resulting degeneracy. Furthermore, this must bring the phase of the incoming light to a good accuracy across the usable spectrum. Since the fringe-tracker operates at different wavelengths, it can only sense part of the offending errors, and we discuss the measurement of these errors with the science detector. NOTT operates in the L band and suffers from various effects such as water vapor, which has already been experienced with N-band nullers (Keck Interferometer Nuller, Large Binocular Telescope Interferometer). This effect can be corrected with prisms forming a variable thickness of glass and an adjustment of air optical path. Moreover, observations in the L band suffer from an additional and important chromatic effect due to longitudinal atmospheric dispersion coming from a resonance of carbon dioxide at 4.3μm that is impractical to correct with glass plates because of its non-linear wavelength dependency. To compensate for this effect efficiently, a novel type of compensation device will be deployed leveraging a gas cell of variable length at ambient pressure. After reviewing the impact of water vapor and CO₂, we present the design of this atmospheric dispersion compensation device for Asgard/NOTT and describe a strategy to maintain this tuning on-sky.

Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

L-band nulling interferometry at the VLTI with Asgard/NOTT: status and plans

Denis Defrère, Romain Laugier, Marc-Antoine Martinod, Germain Garreau, Kwinten Missiaen, Muhammad Salman, Gert Raskin, Colin Dandumont, Steve Ertel, Michael Ireland, Stefan Kraus, Lucas Labadie, Alexandra Mazzolli, Gyorgy Medgyesi, Ahmed Sanny, Olivier Absil, Peter Ábráham, Jean-Philippe Berger, Myriam Bonduelle, Azzurra Bigioli, Emilie Bouzerand, Josh Carter, Nick Cvetojevic, Benjamin Courtney-Barrer, Adrian Glauser, Simon Gross, Xavier Haubois, Noel James, Andras Peter Joo, Stephane Lagarde, Alain Léger, Jarron Leisenring, Jérôme Loicq, Guillermo Martin, Frantz Martinache, Gyorgy Mezo, Sébastien Morel, Johan Morren, Marc Ollivier, Gordon Robertson, Hélène Rousseau, Warrick Schofield, Nicolas Schuhler, Adam Taras, Bart Vandenbussche, Julien Woillez

Proceedings Volume 13095, 130950F (2024) https://doi.org/10.1117/12.3019922

KEYWORDS: Equipment, Planets, Nulling interferometry, Interferometers, Stars, Exoplanets, Sensors, Photonics, Observational astronomy, Design

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Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

CHARA/Silmaril instrument software and data reduction pipeline: characterization of the instrument in the lab and on-sky

Narsireddy Anugu, Theo ten brummelaar, Cyprien Lanthermann, Peter Tuthill, Edgar Ligon, Gail Schaefer, Douglas Gies, Grace Piroscia, Adam Taras, Gerard van Belle, Makoto Kishimoto, Marc-Antoine Martinod

Proceedings Volume 13095, 130951B (2024) https://doi.org/10.1117/12.3019305

KEYWORDS: Cameras, Telescopes, Sensors, Stars, Data acquisition, Signal to noise ratio, K band, Mirrors, Design, Infrared cameras, Data acquisition boards, Astronomical telescopes

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Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

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. Joó, L. Labadie, S. Madden, A. Mazzoli, G. Medgyesi, A. Sanny, A. Taras, B. Vandenbussche, D. Defrère

Proceedings Volume 13095, 130950P (2024) https://doi.org/10.1117/12.3017111

KEYWORDS: Mirrors, Cameras, Optical fabrication, Black bodies, Nulling interferometry, Reflection, Visible radiation, Photonics, Optomechanical design

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Proceedings Article | 28 August 2024 Poster + Paper

Poster + Paper

Real-time control for the GLINT photonic nulling interferometer

Stephanie Rossini-Bryson, Barnaby Norris, Julien Lozi, Vincent Deo, Marc-Antoine Martinod, Eckhart Spalding, Elizabeth Arcadi, Glen Douglass, Sebastien Vievard, Kyohoon Ahn, Michael Withford, Mona El Morsy, Simon Gross, Olivier Guyon, Peter Tuthill

Proceedings Volume 13095, 130951Y (2024) https://doi.org/10.1117/12.3019348

KEYWORDS: Equipment, Photonics, Nulling interferometry

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Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

Generic data reduction for nulling interferometry package: the grip of a single data reduction package on all the nulling interferometers

Marc-Antoine Martinod, Denis Defrère, Romain Laugier, Steve Ertel, Olivier Absil, Barnaby Norris, Germain Garreau, Bertrand Mennesson

Proceedings Volume 13095, 130951A (2024) https://doi.org/10.1117/12.3017506

KEYWORDS: Nulling interferometry, Equipment, Calibration, Histograms, Monte Carlo methods, Device simulation, Stars, Instrument modeling, Data modeling, Telescopes

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Proceedings Article | 28 August 2024 Presentation

Presentation

Status of Asgard/BIFROST: short-wavelength, high-spectral dispersion interferometry at VLTI

Stefan Kraus, Sorabh Chhabra, Jyotirmay Paul, Owain Snaith, Daniel Lancaster, Daniel Mortimer, Narsireddy Anugu, Michael Ireland, Frantz Martinache, Denis Defrère, Xavier Haubois, Nicolas Schuhler, Antoine Merand, Andrea Bianco, Michele Frangiamore, John Monnier, Marc-Antoine Martinod, Joshua Carter, Isabelle Codron, Yi Lu, Tyler Gardner

Proceedings Volume 13095, 130950E (2024) https://doi.org/10.1117/12.3019876

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Proceedings Article | 28 August 2024 Presentation

Presentation

Development status of the L’-band 4-telescope integrated optics nulling beam combiner for NOTT

Ahmed Sanny, Lucas Labadie, Simon Gross, Michael Withford, Romain Laugier, Marc-Antoine Martinod, Germain Garreau, Denis Defrère

Proceedings Volume 13095, 130950Q (2024) https://doi.org/10.1117/12.3018873

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Proceedings Article | 27 August 2024 Presentation + Paper

Presentation + Paper

Baldr: a Zernike wavefront sensor for VLTI/Asgard

Benjamin Courtney-Barrer, Gordon Robertson, Adam Taras, Julien Tom Bernard, Grace McGuinness, Fred Crous, Peter Tuthill, Mamadou N'Diaye, Connor Langford, Nick Cvetojevic, Denis Defrère, Stefan Kraus, Frantz Martinache, Marc-Antoine Martinod, Michael Ireland

Proceedings Volume 13097, 130971O (2024) https://doi.org/10.1117/12.3016212

KEYWORDS: Adaptive optics, Wavefront sensors, Design, Sensors, Matrices, Telescopes, Equipment, Turbulence, Pupil aberrations, Control systems

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Proceedings Article | 26 August 2024 Presentation + Paper

Presentation + Paper

Design, fabrication, and characterisation of a 3-baseline integrated optics beam combiner for nulling interferometry with simultaneous fringe tracking using tricouplers

Elizabeth Arcadi, Glen Douglass, Jacinda Webb, Guillaume Tremblier, Barnaby Norris, Peter Tuthill, Stephanie Rossini-Bryson, Eckhart Spalding, Marc-Antonie Martinod, Mona El Morsy, Julien Lozi, Vincent Deo, Kyohoon Ahn, Sebastien Vievard, Olivier Guyon, Michael Withford, Simon Gross

Proceedings Volume 13100, 131002L (2024) https://doi.org/10.1117/12.3018600

KEYWORDS: Waveguides, Beam combiners, Integrated optics, Nulling interferometry, Design, Fabrication, Photometry, Interferometry

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Proceedings Article | 26 August 2024 Presentation + Paper

Presentation + Paper

Ultrafast laser inscription of achromatic phase shifters for the GLINT integrated nulling interferometer

G. Douglass, T. Klinner-Teo, E. Arcadi, E. Spalding, M. Withford, M. Martinod, P. Tuthill, B. Norris, O. Guyon, S. Gross

Proceedings Volume 13100, 131002M (2024) https://doi.org/10.1117/12.3019796

KEYWORDS: Phase shifts, Waveguides, Refractive index, Nulling interferometry, Fabrication, Planets, Telescopes, Astrophotonics, Exoplanets, Integrated photonics

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Proceedings Article | 26 August 2024 Paper

Paper

Optimisation of laser-written tricouplers for nulling interferometry in the J- and H-band

Elizabeth Arcadi, Glen Douglass, Jacinda Webb, Guillaume Tremblier, Barnaby Norris, Peter Tuthill, Stephanie Rossini-Bryson, Eckhart Spalding, Marc-Antonie Martinod, Mona El Morsy, Julien Lozi, Vincent Deo, Kyohoon Ahn, Sebastien Vievard, Olivier Guyon, Michael Withford, Simon Gross

Proceedings Volume 13100, 131006J (2024) https://doi.org/10.1117/12.3018755

KEYWORDS: Waveguides, Nulling interferometry, Polarization, Fabrication, Telescopes, Laser interferometry, Light wave propagation, Adaptive optics

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Proceedings Article | 24 August 2024 Presentation

Presentation

Self-calibrating photonic nulling systems for exoplanet imaging and spectroscopy

Olivier Guyon, Barnaby Norris, Peter Tuthill, Elizabeth Arcadi, Glen Douglas, Marc-Antoine Martinod, Simon Gross, Stephanie Rossini-Bryson, Eckhart Spalding

Proceedings Volume 13092, 130921V (2024) https://doi.org/10.1117/12.3020870

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SPIE Journal Paper | 15 February 2024

Asgard/NOTT: L-band nulling interferometry at the VLTI. II. Warm optical design and injection system

Germain Garreau, Azzurra Bigioli, Romain Laugier, Gert Raskin, Johan Morren, Jean-Philippe Berger, Colin Dandumont, Harry-Dean Kenchington Goldsmith, Simon Gross, Michael Ireland, Lucas Labadie, Jérôme Loicq, Stephen Madden, Guillermo Martin, Marc-Antoine Martinod, Alexandra Mazzoli, Ahmed Sanny, Hancheng Shao, Kunlun Yan, Denis Defrère

JATIS, Vol. 10, Issue 01, 015002, (February 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.1.015002

KEYWORDS: Nulling interferometry, Wavefront errors, Optical design, Equipment, Polarization, Optical path differences, L band, Design, Birefringence, Error analysis

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SPIE Journal Paper | 30 November 2023 Open Access

Open Access

Machine-learning approach for optimal self-calibration and fringe tracking in photonic nulling interferometry

Barnaby Norris, Marc-Antoine Martinod, Peter Tuthill, Simon Gross, Nick Cvetojevic, Nemanja Jovanovic, Tiphaine Lagadec, Teresa Klinner-Teo, Olivier Guyon, Julien Lozi, Vincent Deo, Sébastien Vievard, Alex Arriola, Thomas Gretzinger, Jonathan Lawrence, Michael Withford

JATIS, Vol. 9, Issue 04, 048005, (November 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.4.048005

KEYWORDS: Calibration, Data modeling, Signal to noise ratio, Education and training, Nulling interferometry, Equipment, Point spread functions, Wavefronts, Sensors, Optical path differences

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SPIE Journal Paper | 27 June 2023

High-angular resolution and high contrast observations from Y to L band at the Very Large Telescope Interferometer with the Asgard Instrumental suite

Marc-Antoine Martinod, Denis Defrère, Michael Ireland, Stefan Kraus, Frantz Martinache, Peter Tuthill, Azzurra Bigioli, Emilie Bouzerand, Julia Bryant, Sorabh Chhabra, Benjamin Courtney-Barrer, Fred Crous, Nick Cvetojevic, Colin Dandumont, Steve Ertel, Tyler Gardner, Germain Garreau, Adrian Glauser, Lucas Labadie, Tiphaine Lagadec, Romain Laugier, Alexandra Mazzoli, Daniel Mortimer, Barnaby R. Norris, Gert Raskin, Gordon Robertson, Ahmed Sanny, Adam Taras

JATIS, Vol. 9, Issue 02, 025007, (June 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.2.025007

KEYWORDS: Equipment, Stars, L band, Exoplanets, Astronomical interferometers, Nulling interferometry, Imaging systems, Spatial resolution, Planets, Planetary systems

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SPIE Journal Paper | 22 October 2022

Achromatic design of a photonic tricoupler and phase shifter for broadband nulling interferometry

Teresa Klinner-Teo, Marc-Antoine Martinod, Peter Tuthill, Simon Gross, Barnaby Norris, Sergio Leon-Saval

JATIS, Vol. 8, Issue 04, 045001, (October 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.4.045001

KEYWORDS: Waveguides, Phase shifts, Nulling interferometry, Planets, Stars, Colorimetry, Exoplanets, Interferometry, Wavefronts, Directional couplers

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Proceedings Article | 30 August 2022 Presentation + Paper

Presentation + Paper

High contrast imaging at the photon noise limit with WFS-based PSF calibration

Olivier Guyon, Barnaby Norris, Marc-Antoine Martinod, Kyohoon Ahn, Vincent Deo, Nour Skaf, Julien Lozi, Sébastien Vievard, Sebastiaan Haffert, Thayne Currie, Jared Males, Alison Wong, Peter Tuthill

Proceedings Volume 12185, 121850E (2022) https://doi.org/10.1117/12.2630503

KEYWORDS: Point spread functions, Calibration, Speckle, Wavefronts, Telescopes, Imaging systems, Planets, Photonics, Coronagraphy, Stars

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans

Denis Defrère, Azzurra Bigioli, Colin Dandumont, Germain Garreau, Romain Laugier, Marc-Antoine Martinod, Olivier Absil, Jean-Philippe Berger, Emilie Bouzerand, Benjamin Courtney-Barrer, Alexandre Emsenhuber, Steve Ertel, Jonathan Gagne, Adrian Glauser, Simon Gross, Michael Ireland, Harry-Dean Kenchington, Jacques Kluska, Stefan Kraus, Lucas Labadie, Viktor Laborde, Alain Léger, Jarron Leisenring, Jérôme Loicq, Guillermo Martin, Johan Morren, Alexis Matter, Alexandra Mazzoli, Kwinten Missiaen, Salman Muhammad, Marc Ollivier, Gert Raskin, Hélène Rousseau, Ahmed Sanny, Simon Verlinden, Bart Vandenbussche, Julien Woillez

Proceedings Volume 12183, 121830H (2022) https://doi.org/10.1117/12.2627953

KEYWORDS: Stars, Planets, Exoplanets, Nulling interferometry, L band, Telescopes, Interferometers, Astronomy, Spectral resolution, Interferometry

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Achromatic nulling interferometry and fringe tracking with 3D-photonic tricouplers with GLINT

Marc-Antoine Martinod, Teresa Klinner-Teo, Peter Tuthill, Simon Gross, Elizabeth Arcadi, Glen Douglass, Jacinda Webb, Barnaby Norris, Olivier Guyon, Julien Lozi, Tiphaine Lagadec, Nemanja Jovanovic, Nick Cvetojevic, Alexander Arriola, Thomas Gretzinger, Michael Withford, Jon Lawrence, Sergio Leon-Saval

Proceedings Volume 12183, 121830K (2022) https://doi.org/10.1117/12.2627978

KEYWORDS: Nulling interferometry, Waveguides, Stars, Exoplanets, Phase shifts, Telescopes, Integrated optics, Interferometry, Adaptive optics, Wavefronts

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Design of the new CHARA instrument SILMARIL: pushing for the sensitivity of a 3-beam combiner in the H- and K-bands

Cyprien Lanthermann, Theo ten Brummelaar, Peter Tuthill, Marc-Antoine Martinod, Edgar Ligon, Douglas Gies, Gail Schaefer, Matthew Anderson

Proceedings Volume 12183, 121830N (2022) https://doi.org/10.1117/12.2628268

KEYWORDS: Signal to noise ratio, K band, Stars, Sensors, Cameras, Optical filters, Spectral resolution, Interferometry, Device simulation

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Proceedings Article | 26 August 2022 Poster + Paper

Poster + Paper

Technical requirements and optical design of the Hi-5 spectrometer

C. Dandumont, A. Mazzoli, V. Laborde, R. Laugier, A. Bigioli, G. Garreau, S. Gross, M. Ireland, H.-D. Kenchington Goldsmith, L. Labadie, M.-A. Martinod, G. Raskin, A. Sanny, J. Loicq, D. Defrère

Proceedings Volume 12183, 121831Y (2022) https://doi.org/10.1117/12.2627939

KEYWORDS: Spectroscopy, Polarization, Spectral resolution, Optical design, Diffraction, Sensors, Diffraction gratings, Point spread functions, Germanium, Telescopes

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Proceedings Article | 26 August 2022 Poster + Paper

Poster + Paper

VLTI/Hi-5: detection yield predictions for young giant exoplanets

C. Dandumont, R. Laugier, A. Emsenhuber, J. Gagne, O. Absil, A. Bigioli, M. Bonavita, G. Garreau, M. Ireland, M.-A. Martinod, J. Loicq, D. Defrère

Proceedings Volume 12183, 1218327 (2022) https://doi.org/10.1117/12.2627942

KEYWORDS: Stars, Planets, Exoplanets, Systems modeling, Atmospheric modeling, Statistical modeling, Astatine, Planetary systems, Spatial resolution, Error analysis

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

High-angular and high-contrast VLTI observations from Y to M band with the Asgard instrumental suite

Marc-Antoine Martinod, Denis Defrère, Michael Ireland, Stefan Kraus, Frantz Martinache, Peter Tuthill, Azzurra Bigioli, Julia Bryant, Sorabh Chhabra, Benjamin Courtney-Barrer, Fred Crous, Nick Cvetojevic, Colin Dandumont, Germain Garreau, Tiphaine Lagadec, Romain Laugier, Daniel Mortimer, Barnaby Norris, Gordon Robertson, Adam Taras

Proceedings Volume 12183, 1218310 (2022) https://doi.org/10.1117/12.2628151

KEYWORDS: Sensors, Mirrors, Cameras, Lawrencium, Camera shutters, L band, Interferometers, Calibration, Spectral resolution, Spatial resolution

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

High spectral-resolution interferometry down to one micron with Asgard/BIFROST at VLTI: science drivers and project overview

Stefan Kraus, Daniel Mortimer, Sorabh Chhabra, Yi Lu, Isabelle Codron, Tyler Gardner, Narsireddy Anugu, John Monnier, Jean-Baptiste Le Bouquin, Michael Ireland, Frantz Martinache, Denis Defrère, Marc-Antoine Martinod

Proceedings Volume 12183, 121831S (2022) https://doi.org/10.1117/12.2627973

KEYWORDS: Stars, Spectral resolution, Interferometry, Exoplanets, Astronomical interferometry, Infrared detectors, Astronomical spectroscopy

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Optimal self-calibration and fringe tracking in photonic nulling interferometers using machine learning

Barnaby R. Norris, Marc-Antoine Martinod, Peter Tuthill, Simon Gross, Nick Cvetojevic, Nemanja Jovanovic, Tiphaine Lagadec, Teresa Klinner-teo, Olivier Guyon, Julien Lozi, Vincent Deo, Sébastien Vievard, Alex Arriola, Thomas Gretzinger, Jon Lawrence, Michael Withford

Proceedings Volume 12183, 121831J (2022) https://doi.org/10.1117/12.2629873

KEYWORDS: Data modeling, Calibration, Wavefronts, Signal to noise ratio, Point spread functions, Nulling interferometry, Adaptive optics, Telescopes, Sensors, Machine learning

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Proceedings Article | 1 September 2021 Presentation + Paper

Presentation + Paper

Very high resolution spectro-interferometry with wavefront sensing capabilities on Subaru/SCExAO using photonics

S. Vievard, K. Ahn, A. Arriola, K. Barjot, N. Cvetojevic, V. Deo, T. Gretzinger, S. Gross, O. Guyon, E. Huby, N. Jovanovic, T. Kotani, S. Lacour, T. Lagadec, M. Lallement, V. Lapeyrere, J. Lozi, F. Marchis, G. Martin, M.-A. Martinod, B. Norris, G. Perrin, D. Rouan, N. Skaf, P. Tuthill, M. Withford, G. Duchêne

Proceedings Volume 11823, 118230C (2021) https://doi.org/10.1117/12.2594840

KEYWORDS: Telescopes, Wavefront sensors, Single mode fibers, Stars, Optical fibers, Interferometry, Diffraction, Wavefronts, Spatial resolution, Photonics

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Proceedings Article | 1 September 2021 Presentation + Paper

Presentation + Paper

High contrast imaging at the photon noise limit with self-calibrating WFS/C systems

Olivier Guyon, Barnaby Norris, Marc-Antoine Martinod, Kyohoon Ahn, Peter Tuthill, Jared Males, Alison Wong, Nour Skaf, Thayne Currie, Kelsey Miller, Steven Bos, Julien Lozi, Vincent Deo, Sebastien Vievard, Ruslan Belikov, Kyle van Gorkom, Sebastiaan Haffert, Benjamin Mazin, Michael Bottom, Richard Frazin, Alexander Rodack, Tyler Groff, Nemanja Jovanovic, Frantz Martinache

Proceedings Volume 11823, 1182318 (2021) https://doi.org/10.1117/12.2594885

KEYWORDS: Calibration, Wavefronts, Imaging systems, Wavefront sensors, Speckle, Planets, Sensors, Photonics, Waveguides, Telescopes

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Proceedings Article | 9 August 2021 Presentation + Paper

Presentation + Paper

Full characterization of the instrumental polarization effects of the spectropolarimetric mode of SCExAO/CHARIS

Joost G. J. 't Hart, Rob G. van Holstein, Steven Bos, Jasper Ruigrok, Frans Snik, Julien Lozi, Olivier Guyon, Tomoyuki Kudo, Jin Zhang, Nemanja Jovanovic, Barnaby Norris, Marc-Antoine Martinod, Tyler D. Groff, Jeffrey Chilcote, Thayne Currie, Motohide Tamura, Sébastien Vievard, Ananya Sahoo, Vincent Deo, Kyohoon Ahn, Frantz Martinache, Jeremy Kasdin

Proceedings Volume 11833, 118330O (2021) https://doi.org/10.1117/12.2602859

KEYWORDS: Polarization, Mirrors, Telescopes, Calibration, Polarimetry, Data modeling, Refractive index, Polarizers, Instrument modeling

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Validating advanced wavefront control techniques on the SCExAO testbed/instrument

Olivier Guyon, Julien Lozi, Sebastien Vievard, Ruslan Belikov, Eduardo Bendek, Steven Bos, Thayne Currie, Vincent Deo, Michael Fitzgerald, Damien Gratadour, Tyler Groff, Nemanja Jovanovic, Hajime Kawahara, Takayuki Kotani, Tomoyuki Kudo, Coline Lopez, Hatem Ltaief, Jared Males, Frantz Martinache, Marc-Antoine Martinod, Benjamin Mazin, Kelsey Miller, Barnaby Norris, Mamadou Ndiaye, Eugene Pluzhnyk, Ananya Sahoo, Arnaud Sevin, Nour Skaf, Frans Snik, Motohide Tamura, Alison Wong

Proceedings Volume 11448, 114481Z (2020) https://doi.org/10.1117/12.2562723

KEYWORDS: Wavefronts, Adaptive optics, Coronagraphy, Prototyping, Sensor fusion, Cameras, Hardware testing, Multiplexing, Wavefront sensors, Reliability

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Status of the SCExAO instrument: recent technology upgrades and path to a system-level demonstrator for PSI

Julien Lozi, Olivier Guyon, Sébastien Vievard, Ananya Sahoo, Vincent Deo, Nemanja Jovanovic, Barnaby Norris, Marc-Antoine Martinod, Ben Mazin, Alex Walter, Neelay Fruitwala, Sarah Steiger, Kristina Davis, Peter Tuthill, Tomoyuki Kudo, Hajime Kawahara, Takayuki Kotani, Michael Ireland, Theodoros Anagnos, Chrstian Schwab, Nick Cvetojevic, Elsa Huby, Sylvestre Lacour, Kevin Barjot, Tyler Groff, Jeffrey Chilcote, Jeremy Kasdin, Frantz Martinache, Romain Laugier, Mamadou N'Diaye, Justin Knight, Jared Males, Steven Bos, Frans Snik, David Doelman, Kelsey Miller, Eduardo Bendek, Ruslan Belikov, Eugene Pluzhnik, Thayne Currie, Masayuki Kuzuhara, Taichi Uyama, Jun Nishikawa, Naoshi Murakami, Jun Hashimoto, Yosuke Minowa, Christophe Clergeon, Yoshito Ono, Naruhisa Takato, Motohide Tamura, Hideki Takami, Masa Hayashi

Proceedings Volume 11448, 114480N (2020) https://doi.org/10.1117/12.2562832

KEYWORDS: Imaging systems, Telescopes, Infrared sensors, Infrared imaging, Coronagraphy, Wavefront sensors, Sensors, Detection and tracking algorithms, Cameras, Wavefronts

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Proceedings Article | 13 December 2020 Paper

Paper

Review and scientific prospects of high-contrast optical stellar interferometry

D. Defrère, O. Absil, J.-P. Berger, W. C. Danchi, C. Dandumont, F. Eisenhauer, S. Ertel, T. Gardner, A. Glauser, P. Hinz, M. Ireland, J. Kammerer, S. Kraus, L. Labadie, S. Lacour, R. Laugier, J. Loicq, G. Martin, F. Martinache, M. A. Martinod, B. Mennesson, J. Monnier, B. Norris, M. Nowak, J. U. Pott, S. Quanz, E. Serabyn, J. Stone, P. Tuthill, J. Woillez

Proceedings Volume 11446, 114461J (2020) https://doi.org/10.1117/12.2561505

KEYWORDS: Stellar interferometry, Interferometry, Nulling interferometry, Data acquisition, Stars, Adaptive optics, Integrated optics, Calibration, Large telescopes

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Proceedings Article | 13 December 2020 Presentation

Presentation

The first multi-baseline and multi-band, photonic nuller at the Subaru telescope: the GLINT nulling interferometer

Marc-Antoine Martinod, Barnaby Norris, Tiphaine Lagadec, Nemanja Jovanovic, Nick Cvetojevic, Simon Gross, Alexander Arriola, Thomas Gretzinger, Michael Withford, Olivier Guyon, Julien Lozi, Jon Lawrence, Peter Tuthill, Sergio Leon-Saval

Proceedings Volume 11446, 114460G (2020) https://doi.org/10.1117/12.2560857

KEYWORDS: Nulling interferometry, Telescopes, Interferometers, Exoplanets, Atmospheric optics, Adaptive optics, Optical instrument design, Spatial resolution, Destructive interference, Prototyping

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

New NIR spectro-polarimetric modes for the SCExAO instrument

Julien Lozi, Olivier Guyon, Tomoyuki Kudo, Jin Zhang, Nemanja Jovanovic, Barnaby Norris, Marc-Antoine Martinod, Tyler Groff, Jeffrey Chilcote, Motohide Tamura, Steven Bos, Frans Snik, Sébastien Vievard, Ananya Sahoo, Vincent Deo, Frantz Martinache, Jeremy Kasdin

Proceedings Volume 11448, 114487C (2020) https://doi.org/10.1117/12.2562792

KEYWORDS: Near infrared, Polarimetry, Polarization, Planets, Coronagraphy, Iterated function systems, Imaging systems, Image processing, Adaptive optics, Visible radiation

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Proceedings Article | 13 December 2020 Poster

Poster

Visible interferometry at the VLTI

Florentin Millour, Fabien Patru, Andrea Chiavassa, Anthony Meilland, Marc-Antoine Martinod, Denis Mourard, Philippe Stee

Proceedings Volume 11446, 114462C (2020) https://doi.org/10.1117/12.2562269

KEYWORDS: Spatial resolution, Sensors, Adaptive optics, Optical tracking, Optical fibers, Interferometry, Stars, Visible radiation, Planets, Galactic astronomy

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Proceedings Article | 3 January 2020 Paper

Paper

Imaging exoplanets with nulling interferometry using integrated-photonics: the GLINT project

M. Martinod, B. Norris, S. Gross, A. Arriola, T. Gretzinger, M. Withford, T. Lagadec, P. Tuthill

Proceedings Volume 11203, 112030R (2020) https://doi.org/10.1117/12.2539790

KEYWORDS: Exoplanets, Nulling interferometry, Photonics, Interferometry, Telescopes, Diffraction, Imaging spectroscopy, Waveguides, Stars, Astronomy

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

SPICA, a new 6T visible beam combiner for CHARA: science, design and interfaces

Denis Mourard, Nicolas Nardetto, Theo ten Brummelaar, Christophe Bailet, Philippe Berio, Yves Bresson, Frédéric Cassaing, Jean-Michel Clausse, Julien Dejonghe, Stéphane Lagarde, Marc-Antoine Martinod, Vincent Michau, Karine Perraut, Cyril Petit, Michel Tallon, Isabelle Tallon-Bosc

Proceedings Volume 10701, 1070120 (2018) https://doi.org/10.1117/12.2311869

KEYWORDS: Stars, Adaptive optics, Sensors, Interferometry, Optical fibers, Telescopes, Single mode fibers, Integrated optics, Visible radiation, Planets

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Proceedings Article | 4 August 2016 Paper

Paper

Long baseline interferometry in the visible: first results of the FRIEND project

M. Martinod, P. Berio, D. Mourard, K. Perraut, A. Meilland, F. Millour, J. Clausse, A. Spang, Y. Bresson, J. Dejonghe, C. Bailet, I. Tallon-Bosc, M. Tallon

Proceedings Volume 9907, 99071H (2016) https://doi.org/10.1117/12.2231704

KEYWORDS: Interferometry, Polarization, Telescopes, Sensors, Visibility, Picosecond phenomena, Calibration, Signal processing, Signal to noise ratio, Calcium

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Showing 5 of 40 publications

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