Prof. John D. Monnier Profile

Prof. John D. Monnier

Professor at Univ of Michigan

SPIE Involvement:

Author

Publications (113)

Proceedings Article | 4 October 2023 Presentation + Paper

Space interferometer imaging limitations due to GPS uncertainties and parasitic forces in LEO

Leonid Pogorelyuk, Mason Black, Nicholas Belsten, Eleonora Polini, Jonah Hansen, Michael Ireland, John Monnier, Kerri Cahoy

Proceedings Volume 12676, 1267606 (2023) https://doi.org/10.1117/12.2677541

KEYWORDS: Visibility, Astronomical interferometers, Interferometers, Space operations, Stars, Reconstruction algorithms, Error analysis, Phase retrieval

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Proceedings Article | 3 October 2023 Presentation + Paper

Table-top demonstration of interferometric imaging using path-entangled single photons

Matthew Brown, Markus Allgaier, Valerian Thiel, John Monnier, Michael Raymer, Brian Smith

Proceedings Volume 12692, 1269209 (2023) https://doi.org/10.1117/12.2677724

KEYWORDS: Photons, Beam splitters, Visibility, Stars, Telescopes, Single mode fibers, Diffusers, Autocorrelation

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SPIE Journal Paper | 6 June 2023 Open Access

MYSTIC: a high angular resolution K-band imager at CHARA

Benjamin Setterholm, John Monnier, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Jacob Ennis, Laurent Jocou, Nour Ibrahim, Stefan Kraus, Matthew Anderson, Sorabh Chhabra, Isabelle Codron, Christopher Farrington, Becky Flores, Tyler Gardner, Mayra Gutierrez, Cyprien Lanthermann, Olli W. Majoinen, Daniel Mortimer, Gail Schaefer, Nicholas Scott, Theo ten Brummelaar, Norman Vargas

JATIS, Vol. 9, Issue 02, 025006, (June 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.2.025006

KEYWORDS: Equipment, K band, Spatial resolution, Beam combiners, Cameras, Imaging systems, Prisms, Mirrors, Vacuum, Design and modelling

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Proceedings Article | 29 August 2022 Presentation + Paper

MIRAC-5: a ground-based mid-IR instrument with the potential to detect ammonia in gas giants

R. Bowens, J. Leisenring, M. Meyer, M. Montoya, W. Hoffman, K. Morzinski, P. Hinz, J. D. Monnier, E. Bergin, E. Viges, P. Calissendorff, W. Forrest, C. McMurtry, J. Pipher, M. Cabrera

Proceedings Volume 12184, 121841U (2022) https://doi.org/10.1117/12.2628953

KEYWORDS: Mid-IR, Sensors, Adaptive optics, Telescopes, Quantum efficiency, Atmospheric modeling, Coronagraphy, Astronomy

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Proceedings Article | 29 August 2022 Presentation

CHARA MIRC-X and MYSTIC cophasing observations to enable efficient spectro-interferometry and over-resolved object imaging

Narsireddy Anugu, John Monnier, Jean-Baptiste Le Bouquin, Stefan Kraus, Benjamin Setterholm, Theo ten Brummelaar, Gail Schaefer, Cyprien Lanthermann, Jacob Ennis

Proceedings Volume 12183, 121830J (2022) https://doi.org/10.1117/12.2629661

KEYWORDS: Telescopes, Spectral resolution, Spatial resolution, Ranging, Observatories, K band, Vibration control, Interferometry

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Proceedings Article | 26 August 2022 Presentation + Paper

Beam combiner for the Asgard/BIFROST instrument

Daniel Mortimer, Sorabh Chhabra, Stefan Kraus, Narsireddy Anugu, Romain Laugier, Jean-Baptiste Le Bouquin, John Monnier

Proceedings Volume 12183, 121831U (2022) https://doi.org/10.1117/12.2629268

KEYWORDS: Signal to noise ratio, Single mode fibers, Visibility, Photons, Spatial frequencies, Spectral resolution

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Proceedings Article | 26 August 2022 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

MYSTIC: a high angular resolution K-band imager at CHARA

Benjamin Setterholm, John Monnier, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Jacob Ennis, Becky Flores, Tyler Gardner, Nour Ibrahim, Laurent Jocou, Stefan Kraus, Cyprien Lanthermann, Gail Schaefer, Theo ten Brummelaar

Proceedings Volume 12183, 121830B (2022) https://doi.org/10.1117/12.2629437

KEYWORDS: Astronomical interferometry, Long baseline optical interferometry, Optical fibers, K band, Cameras, Prisms, Spatial resolution, Visibility, Optical systems, Optical filters

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Proceedings Article | 26 August 2022 Presentation + Paper

SPICA-FT: the new fringe tracker of the CHARA array

Cyril Pannetier, Philippe Bério, Denis Mourard, Sylvain Rousseau, Fatmé Allouche, Julien Dejonghe, Christophe Bailet, Daniel Lecron, Frédéric Cassaing, Jean-Baptiste Le Bouquin, Karine Perraut, John Monnier, Narsireddy Anugu, Theo ten Brummelaar

Proceedings Volume 12183, 1218309 (2022) https://doi.org/10.1117/12.2628897

KEYWORDS: Telescopes, Signal to noise ratio, Optical fibers, Spectrographs, Integrated optics, Stars, Phase shifts, Manufacturing, Visibility

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Proceedings Article | 26 August 2022 Presentation + Paper

Spectrograph design for the Asgard/BIFROST spectro-interferometric instrument for the VLTI

Sorabh Chhabra, Michele Frangiamore, Stefan Kraus, Andrea Bianco, Francisco Garzon, John Monnier, Daniel Mortimer

Proceedings Volume 12183, 121830M (2022) https://doi.org/10.1117/12.2628805

KEYWORDS: Spectrographs, Binary data, Diffraction gratings, Calibration, Sensors, Prisms, Spectral resolution, Diffraction, Reflectivity

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Proceedings Article | 26 August 2022 Presentation + Paper

A thesis to probe unique exoplanet regimes with micro-arcsecond astrometry and precision closure phases at CHARA and VLTI

Tyler Gardner, John Monnier, Francis Fekel, Jean-Baptiste Le Bouquin, Adam Scovera, Gail Schaefer, Stefan Kraus, Fred Adams, Narsireddy Anugu, Hayley Beltz, Jean-Philippe Berger, Theo ten Brummelaar, Claire Davies, Jacob Ennis, Douglas Gies, Keith J. C. Johnson, Pierre Kervella, Kaitlin Kratter, Aaron Labdon, Cyprien Lanthermann, Isaac Malsky, Emily Rauscher, Johannes Sahlmann, Benjamin Setterholm

Proceedings Volume 12183, 121830Z (2022) https://doi.org/10.1117/12.2630035

KEYWORDS: Planets, Stars, Calibration, Exoplanets, Data modeling, Interferometry, Binary data

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Proceedings Article | 26 August 2022 Presentation + Paper

Laser-guided space interferometer

Leonid Pogorelyuk, Paul Serra, Shreeyam Kacker, Sophia Vlahakis, Nicholas Belsten, Gioia Rau, Kenneth Carpenter, Laurent Pueyo, John Monnier, Ewan Douglas, Kerri Cahoy

Proceedings Volume 12183, 121831E (2022) https://doi.org/10.1117/12.2630605

KEYWORDS: Stars, Mirrors, Interferometers, Signal to noise ratio, Diffraction, Laser guide stars, Space mirrors, Sensors

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Proceedings Article | 2 March 2022 Presentation + Paper

Long-baseline interferometry using single photon states as a non-local oscillator

Matthew Brown, Valerian Thiel, Markus Allgaier, Michael Raymer, Brian Smith, Paul Kwiat, John Monnier

Proceedings Volume 12015, 120150E (2022) https://doi.org/10.1117/12.2610314

KEYWORDS: Long baseline optical interferometry, Telescopes, Beam splitters, Oscillators, Visibility, Interferometry, Nonlinear optics, Single photon, Signal to noise ratio, Visible radiation

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Proceedings Article | 16 December 2020 Presentation + Paper

The ExoGRAVITY project: using single mode interferometry to characterize exoplanets

S. Lacour, J. Wang, M. Nowak, L. Pueyo, F. Eisenhauer, A.-M. Lagrange, P. Mollière, R. Abuter, A. Amorin, R. Asensio-Torres, M. Bauböck, M. Benisty, J. P. Berger, H. Beust, S. Blunt, A. Boccaletti, A. Bohn, M. Bonnefoy, H. Bonnet, W. Brandner, F. Cantalloube, P. Caselli, B. Charnay, G. Chauvin, E. Choquet, V. Christiaens, Y. Clénet, A. Cridland, P. T. de Zeeuw, R. Dembet, J. Dexter, A. Drescher, G. Duvert, F. Gao, P. Garcia, R. Garcia Lopez, T. Gardner, E. Gendron, R. Genzel, S. Gillessen, J. H. Girard, X. Haubois, G. Heißel, T. Henning, S. Hinkley, S. Hippler, M. Horrobin, M. Houllé, Z. Hubert, A. Jiménez-Rosales, L. Jocou, J. Kammerer, M. Keppler, P. Kervella, L. Kreidberg, V. Lapeyrère, J.-B. Le Bouquin, P. Léna, D. Lutz, A.-L. Maire, A. Mérand, J. D. Monnier, D. Mouillet, A. Muller, E. Nasedkin, T. Ott, G. P. P. L. Otten, C. Paladini, T. Paumard, K. Perraut, G. Perrin, O. Pfuhl, J. Rameau, L. Rodet, G. Rodriguez-Coira, G. Rousset, J. Shangguan, T. Shimizu, J. Stadler, O. Straub, C. Straubmeier, E. Sturm, T. Stolker, E. van Dishoeck, A. Vigan, F. Vincent, S. D. von Fellenberg, K. Ward-Duong, F. Widmann, E. Wieprecht, E. Wiezorrek, J. Woillez

Proceedings Volume 11446, 114460O (2020) https://doi.org/10.1117/12.2561667

KEYWORDS: Interferometry, Exoplanets

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Proceedings Article | 13 December 2020 Presentation + Paper

MIRC-X polarinterferometry at CHARA

Benjamin Setterholm, John Monnier, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Aaron Labdon, Jacob Ennis, Keith J. Johnson, Stefan Kraus, Theo ten Brummelaar

Proceedings Volume 11446, 114460R (2020) https://doi.org/10.1117/12.2562407

KEYWORDS: Prisms, Stars, Spectral resolution, Polarimetry, Sensors, Light scattering, Beryllium

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Proceedings Article | 13 December 2020 Presentation + Paper

VLTI images of circumbinary disks around evolved stars

Jacques Kluska, Rik Claes, Akke Corporaal, Hans Van Winckel, Javier Alcolea, Narsireddy Anugu, Jean-Philippe Berger, Dylan Bollen, Valentin Bujarrabal, Robert Izzard, Devika Kamath, Stefan Kraus, Jean-Baptiste Le Bouquin, Michiel Min, John Monnier, Hans Olofsson

Proceedings Volume 11446, 114460D (2020) https://doi.org/10.1117/12.2561480

KEYWORDS: Stars, Image processing, Interferometry, Image restoration, Infrared imaging, Infrared radiation, Imaging systems, Spatial resolution, Thermal modeling, Binary data

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Proceedings Article | 13 December 2020 Paper

CHARA array adaptive optics: complex operational software and performance

Narsireddy Anugu, Theo ten Brummelaar, Nils Turner, Matthew Anderson, Jean-Baptiste Le Bouquin, Judit Sturmann, Laszlo Sturmann, Chris Farrington, Norm Vargas, Olli Majoinen, Michael Ireland, John Monnier, Denis Mourard, Gail Schaefer, Douglas Gies, Stephen Ridgway, Stefan Kraus, Cyril Petit, Michel Tallon, Caroline Lim, Philippe Berio

Proceedings Volume 11446, 1144622 (2020) https://doi.org/10.1117/12.2561560

KEYWORDS: Adaptive optics, Telescopes, Wavefront sensors, Optical arrays, Cameras, Deformable mirrors, Actuators, Space telescopes, Interferometers, Binary data

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Proceedings Article | 13 December 2020 Presentation + Paper

CHARA/MIRC-X: a high-sensitive six telescope interferometric imager concept, commissioning and early science

Narsireddy Anugu, Jean-Baptiste Le Bouquin, John Monnier, Stefan Kraus, Gail Schaefer, Benjamin Setterholm, Claire Davies, Tyler Gardner, Aaron Labdon, Cyprien Lanthermann, Jacob Ennis, Theo ten Brummelaar, Judit Sturmann, Matt Anderson, Chris Farrington, Norm Vargas, Olli Majoinen

Proceedings Volume 11446, 114460N (2020) https://doi.org/10.1117/12.2561579

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Proceedings Article | 13 December 2020 Presentation + Paper

Progress of the CHARA/SPICA project

C. Pannetier, D. Mourard, P. Berio, F. Cassaing, F. Allouche, N. Anugu, C. Bailet, T. ten Brummelaar, J. Dejonghe, D. Gies, L. Jocou, S. Kraus, S. Lacour, S. Lagarde, J. B. Le Bouquin, D. Lecron, J. Monnier, N. Nardetto, F. Patru, K. Perraut, R. Petrov, S. Rousseau, P. Stee, J. Sturmann, L. Sturmann

Proceedings Volume 11446, 114460T (2020) https://doi.org/10.1117/12.2560625

KEYWORDS: Glasses, Stars, Fourier transforms, Optical tracking, Photons, Integrated optics, Coherence (optics), Atmospheric optics, Planets, Interferometry

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Proceedings Article | 13 December 2020 Poster

High-spectral resolution interferometry at 1 micrometer with VLTI/BIFROST: science drivers and instrument design

Stefan Kraus, Michael Ireland, Jean-Baptiste Le Bouquin, John Monnier, Barnaby Norris, Frantz Martinache, Denis Defrère, Narsireddy Anugu

Proceedings Volume 11446, 114462H (2020) https://doi.org/10.1117/12.2562181

KEYWORDS: Spectral resolution, Interferometry, Stars, Exoplanets, Planetary systems, Diagnostics, Telescopes, Spectroscopes, James Webb Space Telescope, Adaptive optics

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

The Michigan infrared test thermal ELT N-band (MITTEN) cryostat

R. Bowens, E. Viges, M. Meyer, D. Atkinson, J. Monnier, M. Morgenstern, J. Leisenring, W. Hoffmann

Proceedings Volume 11447, 1144737 (2020) https://doi.org/10.1117/12.2562995

KEYWORDS: Sensors, Thermography, Infrared radiation, Quantum efficiency, Infrared imaging, Infrared detectors, Mid-IR, Astronomy, Optical sensors, Image sensors

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Proceedings Article | 13 December 2020 Presentation + Paper

ELT-HIRES, the high resolution spectrograph for the ELT: the Phase A study and the path to construction

A. Marconi , M. Abreu, V. Adibekyan, M. Aliverti, C. Allende Prieto, P. Amado, M. Amate, E. Artigau, S. Augusto, S. Barros, S. Becerril, B. Benneke, E. Bergin, P. Berio, N. Bezawada, I. Boisse, X. Bonfils, F. Bouchy, C. Broeg, A. Cabral, R. Calvo-Ortega, B. Canto Martins, B. Chazelas, A. Chiavassa, L. Christensen, R. Cirami, I. Coretti, S. Covino, G. Cresci, S. Cristiani, V. Cunha Parro, G. Cupani, V. D'Odorico, I. de Castro Leão, J. de Medeiros, M. de Souza, P. Di Marcantonio, I. Di Varano, R. Doyon, H. Drass, P. Figueira, A. Fragoso, J. Fynbo, E. Gallo, M. Genoni, J. González Hernández, R. Gratton, M. Haehnelt, C. Hansen, J. Hlavacek-Larrondo, I. Hughes, P. Huke, A. Humphrey, H. Kjeldsen, A. Korn, D. Kouach, M. Landoni, J. Liske, C. Lovis, D. Lunney, R. Maiolino, L. Malo, T. Marquart, C. J. A. P. Martins, P. Maslowski, E. Mason, G. Micela, P. Molaro, J. Monnier, M. Monteiro, C. Mordasini, T. Morris, A. Mucciarelli, G. Murray, A. Niedzielski, E. Niemczura, B. Nisini, N. Nunes, E. Oliva, L. Origlia, E. Pallé, G. Pariani, P. Parr-Burman, L. Pasquini, J. Peñate, F. Pepe, G. Pietrzynski, E. Pinna, N. Piskunov, A. Pollo, J. Rasilla, R. Rebolo, P. Rees, A. Reiners, M. Riva, D. Romano, S. Rousseau, N. Sanna, M. Sarajlic, T.-C. Shen, F. Sortino, D. Sosnowska, S. Sousa, E. Stempels, K. Strassmeier, F. Tenegi, A. Tozzi, S. Udry, L. Valenziano, L. Vanzi, M. Weber, M. Woche, M. Xompero, E. Zackrisson, M. R. Zapatero Osorio

Proceedings Volume 11447, 1144726 (2020) https://doi.org/10.1117/12.2560489

KEYWORDS: Spectrographs, Large telescopes, Telescopes, Exoplanets, Atmospheric sciences, Atmospheric sensing, Spectral resolution

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Proceedings Article | 13 December 2020 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 + Paper

A new frontier for J-band interferometry: dual-band NIR interferometry with MIRC-X

Aaron Labdon, John Monnier, Stefan Kraus, Jean-Baptiste Le Bouquin, Benjamin Setterholm, Narsireddy Anugu, Theo ten Brummelaar, Cyprien Lanthermann, Claire Davies, Jacob Ennis, Tyler Gardner, Gail Schaefer, Laszlo Sturmann, Judit Sturmann

Proceedings Volume 11446, 114460H (2020) https://doi.org/10.1117/12.2561371

KEYWORDS: Interferometry, Near infrared, Birefringence, Atmospheric corrections, Atmospheric modeling, Telescopes, Instrument modeling

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Proceedings Article | 21 August 2020 Paper

Betelgeuse scope: single-mode-fibers-assisted optical interferometer design for dedicated stellar activity monitoring

Narsireddy Anugu, Katie Morzinski, Josh Eisner, Ewan Douglas, Dan Marrone, Steve Ertel, Sebastiaan Haffert, Oscar Montoya, Jordan Stone, Stefan Kraus, John Monnier, Jean-Baptiste Lebouquin, Jean-Philippe Berger, Julien Woillez, Miguel Montargès

Proceedings Volume 11490, 114900X (2020) https://doi.org/10.1117/12.2568900

KEYWORDS: Telescopes, Convection, Stars, Interferometers, Visibility, Interferometry, Optical telescopes, Single mode fibers, Spatial resolution

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Proceedings Article | 16 July 2018 Presentation + Paper

Astronomical interferometry with near-IR e-APD at CHARA: characterization, optimization and on-sky operation

Cyprien Lanthermann, Jean-Baptiste Le Bouquin, Narsireddy Anugu, John Monnier, Stefan Kraus

Proceedings Volume 10709, 1070914 (2018) https://doi.org/10.1117/12.2312944

KEYWORDS: Stellar interferometry, Near infrared, Cameras, Data modeling, Signal to noise ratio, Sensors, Calibration, Nondestructive evaluation, Astronomy

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Proceedings Article | 10 July 2018 Presentation + Paper

The CHARA array adaptive optics program

Theo ten Brummelaar, Judit Sturmann, Laszlo Sturmann, Matthew Anderson, Nils Turner, Michael Ireland, John Monnier, Denis Mourard, Stephen Ridgway, Douglas Gies, Jean-Baptiste Le Bouquin

Proceedings Volume 10703, 1070304 (2018) https://doi.org/10.1117/12.2312311

KEYWORDS: Adaptive optics, Telescopes, Interferometers, Interferometry, Mirrors, Actuators, Visible radiation, Imaging systems, Astronomy, Spatial resolution

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Proceedings Article | 10 July 2018 Paper

The hunt for Sirius Ab: comparison of algorithmic sky and PSF estimation performance in deep coronagraphic thermal-IR high contrast imaging

Joseph Long, Jared Males, Katie Morzinski, Laird Close, Frans Snik, Matthew Kenworthy, Gilles P. Otten, John Monnier, Volker Tolls, Alycia Weinberger

Proceedings Volume 10703, 107032T (2018) https://doi.org/10.1117/12.2312874

KEYWORDS: Point spread functions, Coronagraphy, Stray light, Sensors, Telescopes, Stars, Principal component analysis, Exoplanets, Imaging systems, Observatories

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Proceedings Article | 9 July 2018 Presentation + Paper

MIRC-X/CHARA: sensitivity improvements with an ultra-low noise SAPHIRA detector

Narsireddy Anugu, Jean-Baptiste Le Bouquin, John Monnier, Stefan Kraus, Jacob Ennis, Cyprien Lanthermann, Benjamin Setterholm, Claire Davies, Theo ten Brummelaar, Mariam Haidar, Veronika Dubravec, Scott Peters

Proceedings Volume 10701, 1070124 (2018) https://doi.org/10.1117/12.2313036

KEYWORDS: Cameras, Signal to noise ratio, Sensors, Data acquisition, Polarization, Optical fibers, Visibility, Imaging systems, Photons, Telescopes

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Proceedings Article | 9 July 2018 Presentation + Paper

The MIRC-X 6-telescope imager: key science drivers, instrument design and operation

Stefan Kraus, John Monnier, Narsireddy Anugu, Jean-Baptiste Le Bouquin, Claire Davies, Jacob Ennis, Aaron Labdon, Cyprien Lanthermann, Benjamin Setterholm, Theo ten Brummelaar

Proceedings Volume 10701, 1070123 (2018) https://doi.org/10.1117/12.2311706

KEYWORDS: Sensors, Cameras, Visibility, Stars, Imaging systems, Polarization, Interferometry, Optical fibers, Signal to noise ratio, Calibration

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Proceedings Article | 9 July 2018 Paper

Planet formation imager: project update

John Monnier, Michael Ireland, Stefan Kraus, Almudena Alonso-Herrero, Amy Bonsor, Fabien Baron, Amelia Bayo, Jean-Philippe Berger, Tabetha Boyajian, Andrea Chiavassa, David Ciardi, Michelle Creech-Eakman, Willem-Jan de Wit, Denis Defrère, Ruobing Dong, Gaspard Duchêne, Catherine Espaillat, Alexandre Gallenne, Poshak Gandhi, Jean-Francois Gonzalez, Chris Haniff, Sebastian Hoenig, John Ilee, Andrea Isella, Eric Jensen, Attila Juhasz, Stephen Kane, Makoto Kishimoto, Wilhelm Kley, Quentin Kral, Kaitlin Kratter, Lucas Labadie, Sylvestre Lacour, Greg Laughlin, Jean-Baptiste Le Bouquin, Ernest Michael, Farzana Meru, Rafael Millan-Gabet, Florentin Millour, Stefano Minardi, Alessandro Morbidelli, Chris Mordasini, Andreas Morlok, Dave Mozurkewich, Richard Nelson, Johan Olofsson, Rene Oudmaijer, Chris Packham, Claudia Paladini, Olja Panic, Romain Petrov, Benjamin Pope, Joerg-Uwe Pott, Luis Henry Quiroga-Nunez, Cristina Ramos Almeida, Sean Raymond, Zsolt Regaly, Mark Reynolds, Stephen Ridgway, Stephen Rinehart, Matthias Schreiber, Michael Smith, Keivan Stassun, Jean Surdej, Theo ten Brummelaar, Konrad Tristram, Neal Turner, Peter Tuthill, Gerard van Belle, Gautum Vasisht, Alexander Wallace, Gerd Weigelt, Edward Wishnow, Markus Wittkowski, Sebastian Wolf, John Young, Ming Zhao, Zhaohuan Zhu, Sebastian Zúñiga-Fernández

Proceedings Volume 10701, 1070118 (2018) https://doi.org/10.1117/12.2312683

KEYWORDS: Planets, Telescopes, Space telescopes, Exoplanets, Stars, Mid-IR, Interferometry, Signal to noise ratio, Interferometers, Heterodyning

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Proceedings Article | 9 July 2018 Paper

Hi-5: a potential high-contrast thermal near-infrared imager for the VLTI

D. Defrère, M. Ireland, O. Absil, J.-P. Berger, W. Danchi, S. Ertel, A. Gallenne, F. Hénault, P. Hinz, E. Huby, S. Kraus, L. Labadie, J.-B. Le Bouquin, G. Martin, A. Matter, B. Mennesson, A. Mérand, S. Minardi, J. Monnier, B. Norris, G. Orban de Xivry, E. Pedretti, J.-U. Pott, M. Reggiani, E. Serabyn, J. Surdej, K. R. W. Tristram, J. Woillez

Proceedings Volume 10701, 107010U (2018) https://doi.org/10.1117/12.2313700

KEYWORDS: Planets, Interferometry, Stars, Exoplanets, Imaging systems, Interferometers, L band, Mid-IR, Integrated optics, Astrophysics

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Proceedings Article | 9 July 2018 Presentation + Paper

Image-plane fringe tracker for adaptive-optics assisted long baseline interferometry

Michael Ireland, Denis Defrère, Frantz Martinache, John Monnier, Barnaby Norris, Peter Tuthill, Julien Woillez

Proceedings Volume 10701, 1070111 (2018) https://doi.org/10.1117/12.2314393

KEYWORDS: Adaptive optics, Telescopes, Wavefront sensors, Sensors, Visibility, Interferometry

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Proceedings Article | 9 July 2018 Paper

MYSTIC: Michigan Young STar Imager at CHARA

John Monnier, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Stefan Kraus, Benjamin Setterholm, Jacob Ennis, Cyprien Lanthermann, Laurent Jocou, Theo ten Brummelaar

Proceedings Volume 10701, 1070122 (2018) https://doi.org/10.1117/12.2312762

KEYWORDS: Optical fibers, Cameras, Spectrographs, K band, Integrated optics, Stars, Imaging systems, Spectral resolution, Optical interferometry, Coherent beam combination

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Proceedings Article | 6 July 2018 Paper

NPF: mirror development in Chile

Sebastián Zúñiga-Fernández, Amelia Bayo, Johan Olofsson, Leslie Pedrero, Claudio Lobos, Elias Rozas, Nicolás Soto, Matthias Schreiber, Pedro Escárate, Christian Romero, Hayk Hakobyan, Jorge Cuadra, Cristopher Rozas, John Monnier, Stefan Kraus, Mike Ireland, Pedro Mardones

Proceedings Volume 10700, 107003X (2018) https://doi.org/10.1117/12.2313983

KEYWORDS: Mirrors, Surface finishing, Carbon, Polishing, Abrasives, Manufacturing, Telescopes, Astronomy, Planets, Prototyping

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Proceedings Article | 4 August 2016 Paper

An update on the CHARA array

T. ten Brummelaar, D. Gies, H. McAlister, S. Ridgway, J. Sturmann, L. Sturmann, G. Schaefer, N. Turner, C. Farrington, N. Scott, J. Monnier, M. Ireland

Proceedings Volume 9907, 990703 (2016) https://doi.org/10.1117/12.2232125

KEYWORDS: Adaptive optics, Telescopes, Interferometry, Observatories, Interferometers, Astronomy, Data archive systems, Visible radiation, Mirrors, Spectral resolution

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Proceedings Article | 4 August 2016 Paper

Co-phasing the planet formation imager

Romain Petrov, Abdelkarim Boskri, Thami Elhalkouj, John Monnier, Michael Ireland, Stefan Kraus

Proceedings Volume 9907, 99073W (2016) https://doi.org/10.1117/12.2231081

KEYWORDS: Planets, Imaging systems, Interferometers, Fourier transforms, Telescopes, Sensors, Phase measurement, Near infrared, Visibility, K band

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Proceedings Article | 4 August 2016 Paper

Status of the Planet Formation Imager (PFI) concept

Michael Ireland, John Monnier, Stefan Kraus, Andrea Isella, Stefano Minardi, Romain Petrov, Theo ten Brummelaar, John Young, Gautam Vasisht, David Mozurkewich, Stephen Rinehart, Ernest Michael, Gerard van Belle, Julien Woillez

Proceedings Volume 9907, 99071L (2016) https://doi.org/10.1117/12.2233926

KEYWORDS: Planets, Imaging systems, Telescopes, Signal to noise ratio, Heterodyning, Optical instrument design, Space telescopes, Stars, Optical spheres, Adaptive optics

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Proceedings Article | 4 August 2016 Paper

Planet Formation Imager (PFI): science vision and key requirements

Stefan Kraus, John Monnier, Michael Ireland, Gaspard Duchêne, Catherine Espaillat, Sebastian Hönig, Attila Juhasz, Chris Mordasini, Johan Olofsson, Claudia Paladini, Keivan Stassun, Neal Turner, Gautam Vasisht, Tim Harries, Matthew Bate, Jean-François Gonzalez, Alexis Matter, Zhaohuan Zhu, Olja Panic, Zsolt Regaly, Alessandro Morbidelli, Farzana Meru, Sebastian Wolf, John Ilee, Jean-Philippe Berger, Ming Zhao, Quentin Kral, Andreas Morlok, Amy Bonsor, David Ciardi, Stephen Kane, Kaitlin Kratter, Greg Laughlin, Joshua Pepper, Sean Raymond, Lucas Labadie, Richard Nelson, Gerd Weigelt, Theo ten Brummelaar, Arnaud Pierens, Rene Oudmaijer, Wilhelm Kley, Benjamin Pope, Eric L. Jensen, Amelia Bayo, Michael Smith, Tabetha Boyajian, Luis Henry Quiroga-Nuñez, Rafael Millan-Gabet, Andrea Chiavassa, Alexandre Gallenne, Mark Reynolds, Willem-Jan de Wit, Markus Wittkowski, Florentin Millour, Poshak Gandhi, Cristina Ramos Almeida, Almudena Alonso Herrero, Chris Packham, Makoto Kishimoto, Konrad R. Tristram, Jörg-Uwe Pott, Jean Surdej, David Buscher, Chris Haniff, Sylvestre Lacour, Romain Petrov, Steve Ridgway, Peter Tuthill, Gerard van Belle, Phil Armitage, Clement Baruteau, Myriam Benisty, Bertram Bitsch, Sijme-Jan Paardekooper, Christophe Pinte, Frederic Masset, Giovanni Rosotti

Proceedings Volume 9907, 99071K (2016) https://doi.org/10.1117/12.2231067

KEYWORDS: Planets, Imaging systems, Exoplanets, Planetary systems, Astrophysics, Stars, Astronomy, Theoretical astronomy, Observatories, Physics

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Proceedings Article | 4 August 2016 Paper

Architecture design study and technology road map for the Planet Formation Imager (PFI)

John Monnier, Michael Ireland, Stefan Kraus, Fabien Baron, Michelle Creech-Eakman, Ruobing Dong, Andrea Isella, Antoine Merand, Ernest Michael, Stefano Minardi, David Mozurkewich, Romain Petrov, Stephen Rinehart, Theo ten Brummelaar, Gautam Vasisht, Ed Wishnow, John Young, Zhaohuan Zhu

Proceedings Volume 9907, 99071O (2016) https://doi.org/10.1117/12.2233311

KEYWORDS: Telescopes, Planets, Imaging systems, Mid-IR, Heterodyning, Stars, Signal to noise ratio, Image restoration, L band, Visibility

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The Planet Formation Imager (PFI) Project has formed a Technical Working Group (TWG) to explore possible facility architectures to meet the primary PFI science goal of imaging planet formation in situ in nearby starforming regions. The goals of being sensitive to dust emission on solar system scales and resolving the Hill-sphere around forming giant planets can best be accomplished through sub-milliarcsecond imaging in the thermal infrared. Exploiting the 8-13 micron atmospheric window, a ground-based long-baseline interferometer with approximately 20 apertures including 10km baselines will have the necessary resolution to image structure down 0.1 milliarcseconds (0.014 AU) for T Tauri disks in Taurus. Even with large telescopes, this array will not have the sensitivity to directly track fringes in the mid-infrared for our prime targets and a fringe tracking system will be necessary in the near-infrared. While a heterodyne architecture using modern mid-IR laser comb technology remains a competitive option (especially for the intriguing 24 and 40μm atmospheric windows), the prioritization of 3-5μm observations of CO/H2O vibrotational levels by the PFI-Science Working Group (SWG) pushes the TWG to require vacuum pipe beam transport with potentially cooled optics. We present here a preliminary study of simulated L- and N-band PFI observations of a realistic 4-planet disk simulation, finding 21x2.5m PFI can easily detect the accreting protoplanets in both L and N-band but can see non-accreting planets only in L band. We also find that even an ambitious PFI will lack sufficient surface brightness sensitivity to image details of the fainter emission from dust structures beyond 5 AU, unless directly illuminated or heated by local energy sources. That said, the utility of PFI at N-band is highly dependent on the stage of planet formation in the disk and we require additional systematic studies in conjunction with the PFI-SWG to better understand the science capabilities of PFI, including the potential to resolve protoplanetary disks in emission lines to measure planet masses using position-velocity diagrams. We advocate for a specific technology road map in order to reduce the current cost driver (telescopes) and to validate high accuracy fringe tracking and high dynamic range imaging at L, M band. In conclusion, no technology show-stoppers have been identified for PFI to date, however there is high potential for breakthroughs in medium-aperture (4-m class) telescopes architecture that could reduce the cost of PFI by a factor of 2 or more.

Proceedings Article | 7 August 2014 Paper

CHARA array adaptive optics II: non-common-path correction and downstream optics

Theo ten Brummelaar, Xiao Che, Harold McAlister, Michael Ireland, John Monnier, Denis Mourard, Stephen Ridgway, Judit Sturmann, Laszlo Sturmann, Nils Turner, Peter Tuthill

Proceedings Volume 9148, 91484Q (2014) https://doi.org/10.1117/12.2056662

KEYWORDS: Adaptive optics, Telescopes, Stars, Optical arrays, Optical calibration, Wavefronts, Deformable mirrors, Interferometers, Infrared telescopes, Wavefront sensors

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Proceedings Article | 24 July 2014 Paper

Planet formation imager (PFI): introduction and technical considerations

John Monnier, Stefan Kraus, David Buscher, J.-P. Berger, Christopher Haniff, Michael Ireland, Lucas Labadie, Sylvestre Lacour, Herve Le Coroller, Romain Petrov, Jörg-Uwe Pott, Stephen Ridgway, Jean Surdej, Theo ten Brummelaar, Peter Tuthill, Gerard van Belle

Proceedings Volume 9146, 914610 (2014) https://doi.org/10.1117/12.2057262

KEYWORDS: Planets, Telescopes, Space telescopes, Stars, Imaging systems, Spatial resolution, Interferometry, Mid-IR, Interferometers, Exoplanets

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Proceedings Article | 24 July 2014 Paper

New method for path-length equalization of long single-mode fibers for interferometry

M. Anderson, J. Monnier, K. Ozdowy, J. Woillez, G. Perrin

Proceedings Volume 9146, 91461L (2014) https://doi.org/10.1117/12.2057289

KEYWORDS: Optical fibers, Fiber optics, Composites, Resistance, Interferometry, Temperature metrology, Copper, Interferometers, Fiber optics tests, Control systems

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Proceedings Article | 24 July 2014 Paper

The 2014 interferometric imaging beauty contest

John Monnier, Jean-Philippe Berger, Jean-Baptiste Le Bouquin, Peter Tuthill, Markus Wittkowski, Rebekka Grellmann, André Müller, Sridhar Renganswany, Christian Hummel, Karl-Heinz Hofmann, Dieter Schertl, Gerd Weigelt, John Young, David Buscher, Joel Sanchez-Bermudez, Antxon Alberdi, Rainer Schoedel, Rainer Köhler, Ferréol Soulez, Éric Thiébaut, Jacques Kluska, Fabien Malbet, Gilles Duvert, Stefan Kraus, Brian Kloppenborg, Fabien Baron, Willem-Jan de Wit, Thomas Rivinius, Antoine Merand

Proceedings Volume 9146, 91461Q (2014) https://doi.org/10.1117/12.2057312

KEYWORDS: Stars, Image restoration, Interferometry, Image processing, Visibility, Reconstruction algorithms, Telescopes, Data modeling, Spatial resolution, Optical interferometry

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Proceedings Article | 24 July 2014 Paper

A dispersed heterodyne design for the planet formation imager

Michael Ireland, John Monnier

Proceedings Volume 9146, 914612 (2014) https://doi.org/10.1117/12.2057355

KEYWORDS: Telescopes, Heterodyning, Planets, Interferometry, Stars, Spectrographs, Signal detection, Space telescopes, Polarization, Imaging systems

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Proceedings Article | 24 July 2014 Paper

The CHARA array adaptive optics I: common-path optical and mechanical design, and preliminary on-sky results

Xiao Che, Laszlo Sturmann, John Monnier, Theo ten Brummelaar, Judit Sturmann, Stephen Ridgway, Michael Ireland, Nils Turner, Harold McAlister

Proceedings Volume 9148, 914830 (2014) https://doi.org/10.1117/12.2055693

KEYWORDS: Adaptive optics, Telescopes, Mirrors, Cameras, Wavefront sensors, Beam splitters, Collimation, Electron multiplying charge coupled devices, Optical arrays, Near infrared

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Proceedings Article | 24 July 2014 Paper

The science case for the Planet Formation Imager (PFI)

Stefan Kraus, John Monnier, Tim Harries, Ruobing Dong, Matthew Bate, Barbara Whitney, Zhaohuan Zhu, David Buscher, Jean-Philippe Berger, Chris Haniff, Mike Ireland, Lucas Labadie, Sylvestre Lacour, Romain Petrov, Steve Ridgway, Jean Surdej, Theo ten Brummelaar, Peter Tuthill, Gerard van Belle

Proceedings Volume 9146, 914611 (2014) https://doi.org/10.1117/12.2055544

KEYWORDS: Planets, Stars, Planetary systems, Mid-IR, Interferometry, Exoplanets, Computer simulations, Imaging systems, Radiative transfer, Physics

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Proceedings Article | 21 July 2014 Paper

Direct imaging of exoplanets in the habitable zone with adaptive optics

Jared Males, Laird Close, Olivier Guyon, Katie Morzinski, Alfio Puglisi, Philip Hinz, Katherine Follette, John Monnier, Volker Tolls, Timothy Rodigas, Alycia Weinberger, Alan Boss, Derek Kopon, Ya-lin Wu, Simone Esposito, Armando Riccardi, Marco Xompero, Runa Briguglio, Enrico Pinna

Proceedings Volume 9148, 914820 (2014) https://doi.org/10.1117/12.2057135

KEYWORDS: Planets, Stars, Adaptive optics, Imaging systems, Exoplanets, Cameras, Point spread functions, Liquids, Telescopes, Space telescopes

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Proceedings Article | 13 September 2012 Paper

Adaptive optics for the CHARA array

Theo ten Brummelaar, Laszlo Sturmann, Judit Sturmann, Stephen Ridgway, John Monnier, Michael Ireland, Xiao Che, Harold McAlister, Nils Turner, P. Tuthill

Proceedings Volume 8447, 84473I (2012) https://doi.org/10.1117/12.927031

KEYWORDS: Adaptive optics, Telescopes, Stars, Cameras, Mirrors, Sensors, Interferometers, Wavefront sensors, Deformable mirrors, Astronomy

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Proceedings Article | 12 September 2012 Paper

Five years of imaging at CHARA with MIRC

John Monnier, E. Pedretti, N. Thureau, X. Che, M. Zhao, F. Baron, T. ten Brummelaar

Proceedings Volume 8445, 84450Y (2012) https://doi.org/10.1117/12.926433

KEYWORDS: Stars, Infrared imaging, Infrared radiation, Telescopes, Interferometry, Calibration, Optical spheres, Infrared astronomy, Visible radiation, Synthetic apertures

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Proceedings Article | 12 September 2012 Paper

Imaging from the first 6-beam infrared combiner

Xiao Che, John Monnier, Stefan Kraus, Fabien Baron, Ettore Pedretti, Nathalie Thureau, Scott Webster

Proceedings Volume 8445, 84450Z (2012) https://doi.org/10.1117/12.926909

KEYWORDS: Visibility, Calibration, Binary data, Data modeling, Infrared radiation, Telescopes, Infrared imaging, Interferometry, Stars, Sensors

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Proceedings Article | 12 September 2012 Paper

Tracking faint fringes with the CHARA-Michigan Phasetracker (CHAMP)

John Monnier, F. Baron, M. Anderson, S. Kraus, R. Millan-Gabet, E. Pedretti, X. Che, T. ten Brummelaar, N. Calvet

Proceedings Volume 8445, 84451I (2012) https://doi.org/10.1117/12.926399

KEYWORDS: Ferroelectric materials, Coating, Visibility, Metrology, Signal to noise ratio, K band, Calibration, Astronomy, Interferometry, Infrared radiation

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Proceedings Article | 12 September 2012 Paper

Building the next-generation science camera for the Navy Optical Interferometer

A. Ghasempour, M. Muterspaugh, D. Hutter, J. Monnier, J. Benson, J. Armstrong, M. Williamson, S. Fall, C. Harrison, C. Sergeyous

Proceedings Volume 8445, 84450M (2012) https://doi.org/10.1117/12.924995

KEYWORDS: Cameras, Polarization, Telescopes, Stars, Interferometers, Visibility, Optical fibers, Sensors, Imaging systems, Spectrographs

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Proceedings Article | 12 September 2012 Paper

First faint dual-field phase-referenced observations on the Keck interferometer

J. Woillez, P. Wizinowich, R Akeson, M . Colavita, J. Eisner, R. Millan-Gabet, J. Monnier, J.-U. Pott, S. Ragland, E. Appleby, A. Cooper, C. Felizardo, J. Herstein, O. Martin, D. Medeiros, D. Morrison, T. Panteleeva, B. Smith, K. Summers, K. Tsubota, C. Tyau, E. Wetherell

Proceedings Volume 8445, 84450E (2012) https://doi.org/10.1117/12.926404

KEYWORDS: Adaptive optics, Metrology, Stars, Mirrors, Interferometers, Infrared radiation, Beam splitters, Telescopes, Cameras, Optical tracking

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Proceedings Article | 12 September 2012 Paper

Control interface concepts for CHARA 6-telescope fringe tracking with CHAMP+MIRC

Stefan Kraus, John Monnier, Fabien Baron, Xiao Che, Rafael Millan-Gabet, Nathalie Thureau, Ettore Pedretti

Proceedings Volume 8445, 84453A (2012) https://doi.org/10.1117/12.926559

KEYWORDS: Human-machine interfaces, Telescopes, Infrared telescopes, Infrared radiation, Amplifiers, Sensors, Electroluminescence, Interferometry, Fourier transforms, Infrared imaging

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Proceedings Article | 12 September 2012 Paper

Toward 5D image reconstruction for optical interferometry

Fabien Baron, Brian Kloppenborg, John Monnier

Proceedings Volume 8445, 84451D (2012) https://doi.org/10.1117/12.926274

KEYWORDS: Stars, Image restoration, 3D modeling, OpenGL, Reconstruction algorithms, Optical spheres, Compressed sensing, Interferometry, Optical interferometry, 3D image reconstruction

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Proceedings Article | 12 September 2012 Paper

The 2012 interferometric imaging beauty contest

Fabien Baron, William Cotton, Peter Lawson, Steve Ridgway, Alicia Aarnio, John Monnier, Karl-Heinz Hofmann, Dieter Schertl, Gerd Weigelt, Eric Thiébaut, Férréol Soulez, David Mary, Florentin Millour, Martin Vannier, John Young, Nicholas Elias, Henrique Schmitt, Sridharan Rengaswamy

Proceedings Volume 8445, 84451E (2012) https://doi.org/10.1117/12.924907

KEYWORDS: Visibility, Aluminium phosphide, Data modeling, Interferometry, Stars, Image restoration, Reconstruction algorithms, Infrared imaging, Signal to noise ratio, Spatial frequencies

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Proceedings Article | 1 November 2010 Paper

Adaptive optics for the CHARA array II

Stephen Ridgway, Theo ten Brummelaar, Judit Sturmann, Laszlo Sturmann, Nils Turner, Harold McAlister, John Monnier, Michael Ireland, Peter Tuthill, Derek Coburn, Chris Dainty, Nicholas Devaney, Alexander Goncharov, David Mozurkewich

Proceedings Volume 7734, 77340B (2010) https://doi.org/10.1117/12.857685

KEYWORDS: Adaptive optics, Telescopes, Atmospheric optics, Wavefronts, Visibility, Interferometry, Space telescopes, Atmospheric propagation, Monte Carlo methods, Astronomy

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Proceedings Article | 2 August 2010 Paper

Phase closure nulling: results from the 2009 campaign

Gilles Duvert, Fabien Malbet, Alain Chelli, Rafael Millan-Gabet, John Monnier, Gail Schaefer

Proceedings Volume 7734, 77340U (2010) https://doi.org/10.1117/12.857970

KEYWORDS: Stars, Visibility, Calibration, Spectroscopy, Polarizers, Spatial frequencies, Bessel functions, Interferometers, Interferometry, Binary data

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Proceedings Article | 22 July 2010 Open Access

First Keck Interferometer measurements in self-phase referencing mode: spatially resolving circum-stellar line emission of 48 Lib

J-U. Pott, J. Woillez, S. Ragland, P. Wizinowich, J. Eisner, J. Monnier, R. Akeson, A. Ghez, J. Graham, L. Hillenbrand, R. Millan-Gabet, E. Appleby, B. Berkey, M. Colavita, A. Cooper, C. Felizardo, J. Herstein, M. Hrynevych, D. Medeiros, D. Morrison, T. Panteleeva, B. Smith, K. Summers, K. Tsubota, C. Tyau, E. Wetherell

Proceedings Volume 7734, 77340P (2010) https://doi.org/10.1117/12.856922

KEYWORDS: Laser induced breakdown spectroscopy, Bromine, Stars, Interferometers, Calibration, Spectral resolution, Interferometry, Beryllium, Hydrogen, K band

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Proceedings Article | 22 July 2010 Paper

A novel image reconstruction software for optical/infrared interferometry

Fabien Baron, John Monnier, Brian Kloppenborg

Proceedings Volume 7734, 77342I (2010) https://doi.org/10.1117/12.857364

KEYWORDS: Image restoration, Interferometry, Image compression, Compressed sensing, Data modeling, Wavelets, Algorithms, Reconstruction algorithms, Astronomy, Visibility

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Proceedings Article | 22 July 2010 Open Access

ASTRA: astrometry and phase-referencing astronomy on the Keck interferometer

J. Woillez, R. Akeson, M. Colavita, J. Eisner, A. Ghez, J. Graham, L. Hillenbrand, R. Millan-Gabet, J. Monnier, J-U. Pott, S. Ragland, P. Wizinowich, E. Appleby, B. Berkey, A. Cooper, C. Felizardo, J. Herstein, M. Hrynevych, O. Martin, D. Medeiros, D. Morrison, T. Panteleeva, B. Smith, K. Summers, K. Tsubota, C. Tyau, E. Wetherell

Proceedings Volume 7734, 773412 (2010) https://doi.org/10.1117/12.857740

KEYWORDS: Metrology, Adaptive optics, Mirrors, Space telescopes, Interferometers, Telescopes, Cameras, Astronomy, Electron beam melting, Infrared radiation

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Proceedings Article | 22 July 2010 Paper

MI-6: Michigan interferometry with six telescopes

John Monnier, M. Anderson, F. Baron, D. Berger, X. Che, T. Eckhause, S. Kraus, E. Pedretti, N. Thureau, R. Millan-Gabet, T. ten Brummelaar, P. Irwin, M. Zhao

Proceedings Volume 7734, 77340G (2010) https://doi.org/10.1117/12.858286

KEYWORDS: Telescopes, Calibration, Stars, Amplifiers, Interferometry, Visibility, Imaging systems, Infrared telescopes, Infrared imaging, Infrared radiation

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Proceedings Article | 22 July 2010 Paper

High precision interferometer: MIRC with photometric channels

Xiao Che, John Monnier, Scott Webster

Proceedings Volume 7734, 77342V (2010) https://doi.org/10.1117/12.857848

KEYWORDS: Microlens array, Visibility, Beam splitters, Multimode fibers, Calibration, Mirrors, Sensors, Telescopes, Prototyping, Collimation

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Proceedings Article | 22 July 2010 Paper

MIRC closure phase studies for high precision measurements

Ming Zhao, John Monnier, Xiao Che, Theo ten Brummelaar, Ettore Pedretti, Nathalie Thureau

Proceedings Volume 7734, 77341A (2010) https://doi.org/10.1117/12.857538

KEYWORDS: Calibration, Jupiter, Planets, Binary data, Stars, Data modeling, Phase measurement, Signal to noise ratio, Polarizers, Interferometers

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Proceedings Article | 22 July 2010 Paper

Integrated optic beam combiners for stellar interferometry and nulling at near- and mid-infrared wavelengths

Hsien-kai Hsiao, Kim Winick, John Monnier, Jean-Philippe Berger

Proceedings Volume 7734, 77342T (2010) https://doi.org/10.1117/12.858295

KEYWORDS: Waveguides, Nulling interferometry, Integrated optics, Refractive index, Directional couplers, Interferometry, Astronomy, Stellar interferometry, Wave propagation, Channel waveguides

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Proceedings Article | 22 July 2010 Open Access

Science with the Keck Interferometer ASTRA program

J. Eisner, R. Akeson, M. Colavita, A. Ghez, J. Graham, L. Hillenbrand, R. Millan-Gabet, J. Monnier, J. Pott, S. Ragland, P. Wizinowich, J. Woillez

Proceedings Volume 7734, 773411 (2010) https://doi.org/10.1117/12.856418

KEYWORDS: Stars, Planets, Data modeling, Bromine, Interferometers, Phase measurement, Exoplanets, Interferometry, Hydrogen, Spatial resolution

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Proceedings Article | 28 July 2008 Paper

Polar-interferometry: what can be learnt from the IOTA/IONIC experiment

Jean-Baptiste Le Bouquin, Karine Rousselet-Perraut, Jean-Philippe Berger, Emilie Herwats, Myriam Benisty, Olivier Absil, Denis Defrere, John Monnier, Wesley Traub

Proceedings Volume 7013, 70130F (2008) https://doi.org/10.1117/12.786377

KEYWORDS: Polarization, Mirrors, Calibration, Polarimetry, Telescopes, Visibility, Interferometry, Sensors, Integrated optics, Polarizers

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Proceedings Article | 28 July 2008 Paper

CHARA Michigan phase-tracker (CHAMP): a preliminary performance report

David Berger, John Monnier, Rafael Millan-Gabet, Theo ten Brummelaar, Matthew Anderson, Jennifer Blum, Timothy Blasius, Ettore Pedretti, Nathalie Thureau

Proceedings Volume 7013, 701319 (2008) https://doi.org/10.1117/12.790168

KEYWORDS: Staring arrays, Beam splitters, K band, Lens design, Mirrors, Lenses, Servomechanisms, Optical fibers, Phase shift keying, Optical tracking

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Proceedings Article | 28 July 2008 Paper

Exoplanet studies with CHARA-MIRC

Ming Zhao, John Monnier, Theo ten Brummelaar, Ettore Pedretti, Nathalie Thureau

Proceedings Volume 7013, 70131K (2008) https://doi.org/10.1117/12.789698

KEYWORDS: Jupiter, Telescopes, Signal detection, Stars, Planets, Calibration, Atmospheric modeling, Exoplanets, Interferometers, Phase shifts

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Proceedings Article | 28 July 2008 Paper

The gas-dust transition region in young stellar objects: a sub-milli-arcsecond view through the eyes of CHARA

A. Tannirkulam, J. Monnier, R. Millan-Gabet, T. Harries, E. Pedretti, Z. Zhu, T. ten Brummelaar

Proceedings Volume 7013, 70130U (2008) https://doi.org/10.1117/12.788512

KEYWORDS: Near infrared, Stars, Visibility, Data modeling, K band, Interferometry, Calibration, Interferometers, Infrared telescopes, Infrared radiation

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Proceedings Article | 28 July 2008 Paper

Last technology and results from the IOTA interferometer

Ettore Pedretti, Wesley Traub, John Monnier, Peter Schuller, Sam Ragland, Jean–Philippe Berger, Rafael Millan-Gabet, Gary Wallace, Michael Burke, Marc Lacasse, Nathalie Thureau, Nathaniel Carleton

Proceedings Volume 7013, 70132V (2008) https://doi.org/10.1117/12.789751

KEYWORDS: Stars, Spectrographs, Interferometers, Infrared radiation, Prisms, Visibility, Telescopes, Data modeling, Infrared telescopes, Interferometry

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Proceedings Article | 28 July 2008 Paper

Recent developments in optical interferometry data standards

John Young, William Cotton, Wolfgang Gässler, Rafael Millan-Gabet, John Monnier, Thomas Pauls, Isabelle Percheron

Proceedings Volume 7013, 70134H (2008) https://doi.org/10.1117/12.788955

KEYWORDS: Standards development, Calibration, Optical interferometry, Interferometry, Interferometers, Binary data, Visibility, Optical filters, Interfaces, Data modeling

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Proceedings Article | 28 July 2008 Paper

2008 imaging beauty contest

William Cotton, John Monnier, Fabien Baron, Karl-Heinz Hofmann, Stefan Kraus, Gerd Weigelt, Sridharan Rengaswamy, Eric Thiébaut, Peter Lawson, Walter Jaffe, Christian Hummel, Tom Pauls, Henrique Schmitt, Peter Tuthill, John Young

Proceedings Volume 7013, 70131N (2008) https://doi.org/10.1117/12.788903

KEYWORDS: Data modeling, K band, Interferometry, Image restoration, Reconstruction algorithms, Visibility, Stars, Phase measurement, Image quality, Astronomical imaging

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Proceedings Article | 15 July 2008 Paper

Imaging the surface of Altair and a MIRC update

John Monnier, M. Zhao, E. Pedretti, N. Thureau, M. Ireland, P. Muirhead, J.-P. Berger, R. Millan-Gabet, G. Van Belle, T. ten Brummelaar, H. McAlister, S. Ridgway, N. Turner, L. Sturmann, J. Sturmann, D. Berger, A. Tannirkulam, J. Blum

Proceedings Volume 7013, 701302 (2008) https://doi.org/10.1117/12.789754

KEYWORDS: Calibration, Telescopes, Stars, Visibility, Binary data, Infrared radiation, Infrared imaging, Single mode fibers, Interferometers, Spectrographs

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Proceedings Article | 6 July 2006 Paper

The Fourier-Kelvin Stellar Interferometer: a low-complexity low-cost space mission for high-resolution astronomy and direct exoplanet detection

R. Barry, W. Danchi, L. Deming, L. Richardson, M. Kuchner, S. Seager, B. Frey, A. Martino, K. Lee, M. Zuray, J. Rajagopal, T. Hyde, R. Millan-Gabete, J. Monnier, R. Allen, W. Traub

Proceedings Volume 6265, 62651L (2006) https://doi.org/10.1117/12.672437

KEYWORDS: Sensors, Planets, Wavefronts, Interferometers, Control systems, Beam splitters, Space operations, Actuators, Astronomy, Signal detection

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Proceedings Article | 28 June 2006 Paper

CHARA Michigan phase-tracker (CHAMP): design and fabrication

David Berger, John Monnier, Rafael Millan-Gabet, Theo ten Brummelaar, Philip Muirhead, Ettore Pedretti, Nathalie Thureau

Proceedings Volume 6268, 62683K (2006) https://doi.org/10.1117/12.672168

KEYWORDS: Modulation, Beam splitters, Sensors, Mirrors, Interferometers, Optical amplifiers, Optical fabrication, Fourier transforms, Staring arrays, Computing systems

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Proceedings Article | 28 June 2006 Paper

Scientific rationale for exoplanet characterization from 3-8 microns: the FKSI mission

W. Danchi, R. Barry, D. Deming, M. Kuchner, J. Monnier, L. Mundy, J. Rajagopal, J. Richardson, S. Seager, W. Traub

Proceedings Volume 6268, 626820 (2006) https://doi.org/10.1117/12.672817

KEYWORDS: Planets, Exoplanets, Interferometers, Stars, Solar system, Jupiter, Clouds, Infrared radiation, Space telescopes, Signal to noise ratio

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Proceedings Article | 28 June 2006 Paper

Michigan Infrared Combiner (MIRC): commissioning results at the CHARA Array

John Monnier, Ettore Pedretti, Nathalie Thureau, Jean-Philippe Berger, Rafael Millan-Gabet, Theo ten Brummelaar, Harold McAlister, Judit Sturmann, Lazlo Sturmann, Phil Muirhead, Ajay Tannirkulam, Scott Webster, Ming Zhao

Proceedings Volume 6268, 62681P (2006) https://doi.org/10.1117/12.671982

KEYWORDS: Optical fibers, Infrared radiation, Telescopes, Infrared telescopes, Infrared imaging, Cameras, Sensors, Interferometers, K band, Spectrographs

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Proceedings Article | 28 June 2006 Paper

Software tools for optical interferometry

Nathalie Thureau, Michael Ireland, John Monnier, Ettore Pedretti

Proceedings Volume 6268, 62683C (2006) https://doi.org/10.1117/12.670560

KEYWORDS: Human-machine interfaces, Visibility, Software development, Image restoration, Interferometry, Optical interferometry, Data modeling, Astronomy, Infrared imaging, Infrared radiation

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Proceedings Article | 28 June 2006 Paper

A freely available real-time operating system well suited for astronomy and the physical sciences

Ettore Pedretti, John Monnier, Nathalie Thureau, David Berger

Proceedings Volume 6268, 626835 (2006) https://doi.org/10.1117/12.670548

KEYWORDS: Operating systems, Control systems, Interferometers, Cameras, Infrared cameras, Electroluminescence, Astronomy, Digital signal processing, Physical sciences, Human-machine interfaces

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Proceedings Article | 28 June 2006 Paper

Monte-Carlo imaging for optical interferometry

Michael Ireland, John Monnier, Nathalie Thureau

Proceedings Volume 6268, 62681T (2006) https://doi.org/10.1117/12.670940

KEYWORDS: Data modeling, Optical interferometry, Algorithms, Optical imaging, Interferometry, Microelectromechanical systems, Visibility, Detection and tracking algorithms, Astronomy, Monte Carlo methods

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Proceedings Article | 28 June 2006 Paper

2006 interferometry imaging beauty contest

Peter Lawson, William Cotton, Christian Hummel, Fabien Baron, John Young, Stefan Kraus, Karl-Heinz Hofmann, Gerd Weigelt, Michael Ireland, John Monnier, Eric Thiébaut, Sridharan Rengaswamy, Olivier Chesneau

Proceedings Volume 6268, 62681U (2006) https://doi.org/10.1117/12.670409

KEYWORDS: Interferometry, Data modeling, Interferometers, Visibility, Image restoration, Image resolution, Reconstruction algorithms, Observatories, Algorithm development, Telescopes

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Proceedings Article | 28 June 2006 Paper

Integrated optic beam combiners in lithium niobate for stellar interferometer

Guangyu Li, Tobias Eckhause, Kim Winick, John Monnier, Jean-Philippe Berger

Proceedings Volume 6268, 626834 (2006) https://doi.org/10.1117/12.671628

KEYWORDS: Integrated optics, Waveguides, L band, Modulators, Electro optics, Interferometry, Lithium niobate, Spatial filters, Phase modulation, Planets

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Proceedings Article | 28 June 2006 Paper

Sparse-aperture adaptive optics

Peter Tuthill, James Lloyd, Michael Ireland, Frantz Martinache, John Monnier, Henry Woodruff, Theo ten Brummelaar, Nils Turner, Charles Townes

Proceedings Volume 6272, 62723A (2006) https://doi.org/10.1117/12.672342

KEYWORDS: Adaptive optics, Calibration, Point spread functions, Modulation transfer functions, Visibility, Telescopes, Interferometry, Signal to noise ratio, Deconvolution, Binary data

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Proceedings Article | 27 June 2006 Paper

IOTA: recent science and technology

F. Peter Schloerb, J.-P. Berger, N. Carleton, P. Hagenauer, P. Kern, P. Labeye, M. Lacasse, F. Malbet, R. Millan-Gabet, J. Monnier, M. Pearlman, E. Pedretti, K. Rousselet-Perraut, S. Ragland, P. Schuller, W. Traub, G. Wallace

Proceedings Volume 6268, 62680I (2006) https://doi.org/10.1117/12.672597

KEYWORDS: Stars, Interferometers, Phase measurement, Telescopes, Infrared telescopes, Visibility, Infrared radiation, Remote sensing, Spectroscopy, Observatories

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Proceedings Article | 15 September 2005 Paper

The Fourier-Kelvin Stellar Interferometer (FKSI): a progress report and preliminary results from our nulling testbed

R. Barry, W. Danchi, V. Chambers, J. Rajagopal, L. Richardson, A. Martino, D. Deming, M. Kuchner, R. Linfield, R. Millan-Gabet, L. Lee, J. Monnier, L. Mundy, C. Noecker, S. Seager, D. Wallace, R. Allen, W. Traub, H. Ford

Proceedings Volume 5905, 59050Z (2005) https://doi.org/10.1117/12.627827

KEYWORDS: Beam splitters, Planets, Interferometers, Sensors, Stars, Wavefronts, Visibility, Nulling interferometry, Mirrors, Polarization

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Proceedings Article | 20 October 2004 Paper

Characterizing closure-phase measurements at IOTA

Sam Ragland, Wesley Traub, Jean-Philippe Berger, Rafael Millan-Gabet, John Monnier, Ettore Pedretti, F. Schloerb, Nathaniel Carleton, Pierre Haguenauer, Pierre Kern, Pierre Labeye, Marc Lacasse, Fabien Malbet, Karine Rousselet-Perraut

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.552447

KEYWORDS: Stars, Interferometers, Telescopes, Integrated optics, Polarization, Visibility, Phase measurement, Infrared telescopes, Calibration, Absorption filters

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Proceedings Article | 20 October 2004 Paper

The Fourier-Kelvin Stellar Interferometer: a practical interferometer for the detection and characterization of extrasolar giant planets

William Danchi, Ronald Allen, Dominic Benford, Drake Deming, Daniel Gezari, Marc Kuchner, David Leisawitz, Roger Linfield, Rafael Millan-Gabet, John Monnier, Lee Mundy, Charley Noecker, Jayadev Rajagopal, L. Richardson, Stephen Rinehart, Sara Seager, Wesley Traub, Debra Wallace

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.552077

KEYWORDS: Planets, Telescopes, Optical instrument design, Interferometers, Space telescopes, Stars, Nulling interferometry, Sensors, Cameras, Space operations

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Proceedings Article | 20 October 2004 Paper

Adaptive optics and aperture masking: a comparison

Jayadev Rajagopal, Richard Barry, Bruno Lopez, William Danchi, John Monnier, Peter Tuthill, Charles Townes

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.552170

KEYWORDS: Adaptive optics, Stars, Point spread functions, Calibration, Telescopes, Deconvolution, Space telescopes, Infrared imaging, Mirrors, Keck Observatory

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Proceedings Article | 20 October 2004 Paper

A data exchange standard for optical (visible/IR) interferometry

Thomas Pauls, John Young, William Cotton, John Monnier

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551689

KEYWORDS: Visibility, Interferometry, Interferometers, Binary data, Calibration, Astronomy, Astronomical imaging, Optical interferometry, Software development, Data storage

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Proceedings Article | 20 October 2004 Paper

IOTA: recent technology and science

Wesley Traub, Jean-Philippe Berger, Michael Brewer, Nathaniel Carleton, Pierre Kern, Stefan Kraus, Marc Lacasse, William McGonagle, Rafael Millan-Gabet, John Monnier, Ettore Pedretti, Sam Ragland, Robert Reich, F. Peter Schloerb, Peter Schuller, Kamal Souccar, Gary Wallace

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550916

KEYWORDS: Stars, Cameras, Telescopes, Control systems, Integrated optics, Infrared radiation, Phase measurement, Sensors, Prisms, Interferometers

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Proceedings Article | 20 October 2004 Paper

The Michigan Infrared Combiner (MIRC): IR imaging with the CHARA Array

John Monnier, Jean-Philippe Berger, Rafael Millan-Gabet, Theo ten Brummelaar

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550804

KEYWORDS: Infrared imaging, Infrared radiation, Telescopes, Spectroscopy, Integrated optics, Stellar interferometry, Single mode fibers, Singular optics, Calibration, Synthetic apertures

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Proceedings Article | 20 October 2004 Paper

Fringe tracking at the IOTA interferometer

Ettore Pedretti, Nathalie Thureau, Edward Wilson, Wesley Traub, John Monnier, Sam Ragland, Nathaniel Carleton, Rafael Millan-Gabet, F. Peter Schloerb, Michael Brewer, Jean-Philippe Berger, Marc Lacasse

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551625

KEYWORDS: Detection and tracking algorithms, Interferometers, Algorithm development, Telescopes, Signal to noise ratio, Phase measurement, Infrared radiation, Stars, Optical tracking, Infrared telescopes

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Proceedings Article | 20 October 2004 Paper

An interferometry imaging beauty contest

Peter Lawson, William Cotton, Christian Hummel, John Monnier, Ming Zhao, John Young, Hrobjartur Thorsteinsson, Serge Meimon, Laurent Mugnier, Guy Le Besnerais, Eric Thiebaut, Peter Tuthill

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550710

KEYWORDS: Data modeling, Interferometry, Interferometers, Visibility, Image restoration, Reconstruction algorithms, Telescopes, Synthetic apertures, Calibration, Radio optics

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