Dr. Stéphane Lagarde Profile

Dr. Stéphane Lagarde

Engineer at Observatoire de la Côte d'Azur

SPIE Involvement:

Author

Publications (46)

Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

Upgrading the high contrast imaging facility SPHERE: science drivers and instrument choices

S. Rousseau, C. Goulas, P. Baudoz, C. Bechet, A. Bianco, E. Cascone, B. Charnay, F. Cortecchia, V. Di Capprio, A. De Rosa, V. D'Orazi, M. Frangiamore, C. Kulcsár, S. Lagarde, E. Lagadec, A. Boccaletti, G. Chauvin, F. Wildi, J. Milli, D. Mouillet, J.-L. Beuzit, M. Loupias, R. Gratton, M. Langlois, M. Bonnefoy, A. Vigan, C. Keller, M. N’Diaye, M. Feldt, D. Segransan, F. Vidal, F. Cantalloube, E. Gendron, A. Baruffolo, M. Tallon, E. Stadler, E. Diolaiti, D. Gratadour, J. Mazoyer, E. Pantin, C. Ginski, A.-M. Lagrange, M. Benisty, R. Galicher, M. Kasper, E. Choquet, R. Landman, S. Desidera, F. Ménard, S. Douté, B. Carry, D. Rouan, V. Christiaens, C. Desgrange, F. Ferreira, I. Snellen, E. Huby, M. Lombini, Y. Magnard, G. Malaguti, D. Maurel, D. Mesa, G. Morgante, T. Pichon, A. Potier, P. Rabou, S. Rochat, l. Terenzi, E. Thiébaut, I. Tallon-Bosc, H.-F Raynaud, A. Sevin, F. Schiavone, L. Schrieber, A. Zanutta

Proceedings Volume 12184, 121841S (2022) https://doi.org/10.1117/12.2630154

KEYWORDS: Optical spheres, Planets, Exoplanets, Astronomy, Astrophysics, Spectral resolution, Adaptive optics, Stars, Wavefront sensors, Coronagraphy

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Proceedings Article | 26 August 2022 Paper

Paper

VERMILION: Visitor Extension spectRal sub-Mid-Infrared Light InterferOmeter iNstrument

Massinissa Hadjara, Romain Petrov, Stéphane Lagarde, Xinyang Chen, Juncheng Chen, Florentin Millour, Ernest Michael, Marcos Diaz, Juan Pablo Colque, Congcong Zhang, Fatmé Allouche, Yinlei Hao, Felipe Besser, Clémentine Marie Zélia Bechet, Andrés Guesalaga Meissner, Bruno Lopez, Abdelkarim Boskri, Amelia Bayo, Jinhua He, Lei Zhu, Rene Mendez, Gabriel Pereira, Sebastián Manosalva, Christian Nitschelm, Dan Zhou, Leonardo Vanzi, Amokrane Berdja, Miguel Piña, Anthony Meilland, James Leftley, Alexandre Gallenne, Abderrahmane Mezaoui, Nourredine Moussaoui

Proceedings Volume 12183, 121831V (2022) https://doi.org/10.1117/12.2627736

KEYWORDS: Stars, Spectral resolution, Astatine, Telescopes, Sensors, Adaptive optics, Spatial resolution, Observatories, K band, Interferometry

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

CHARA/SPICA: a six-telescope visible instrument for the CHARA Array

Denis Mourard, Philippe Berio, Cyril Pannetier, Nicolas Nardetto, Fatmé Allouche, Christophe Bailet, Julien Dejonghe, Daniel Lecron, Frédéric Morand, Pierre Geneslay, David Salabert, Estelle Jacqmart, Karine Perraut, Laurent Bourgès, Guillaume Mella, Theo ten Brummelaar, Gail Schaefer, Doug Gies, Stéphane Lagarde, Sylvain Rousseau, Alain Spang, Roxanne Ligi, Orlagh Creevey, Armando Domiciano de Souza, Markus Wittkowski, Sebastien Deheuvels, Narsireddy Anugu, Simon Albrecht

Proceedings Volume 12183, 1218308 (2022) https://doi.org/10.1117/12.2628881

KEYWORDS: Stars, Sensors, Interferometry, Single mode fibers, Spectrographs, Mirrors, Planets, Calibration, Visibility, Databases

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Proceedings Article | 26 August 2022 Poster + Paper

Poster + Paper

Building a GRAVITY+ adaptive optics test bench

Christophe Bailet, Olivier Boebion, Marcel Carbillet, Jean-Baptiste Lebouquin, Thibaut Paumard, Férréol Soulez, Julien Woillez, Nikhil More, Frank Eisenhauer, Christian Straubmeier, Laura Kreidberg, Paulo Garcia, Sebastian Hoenig, Paul Girard, Nicolas Mauclert, Florentin Millour, Philippe Bério, Stéphane Lagarde, Sylvie Robbe-Dubois, Carole Gouvret, Olivier Lai, Fatmé Allouche, Aurélie Marcotto, Alain Spang

Proceedings Volume 12183, 121831X (2022) https://doi.org/10.1117/12.2627105

KEYWORDS: Adaptive optics, Telescopes, Mirrors, Device simulation, Point spread functions, Computer aided design, Deformable mirrors, Optical simulations, Wavefront sensors, Optical testing, Astronomical interferometry, Long baseline optical interferometry

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

Hierarchical Fringe Tracking, sky coverage and AGNs at the VLTI

Romain Petrov, James Leftley, Massinissa Hadjara, Sylvain Rousseau, Abdelkarim Boskri, Stéphane Lagarde, Fatmé Allouche, Bruno Lopez, Xinyang Chen, Yinlei Hao, Thami Elhalkouj, Zouhair Benkhaldoun, Florentin Millour

Proceedings Volume 12183, 121830I (2022) https://doi.org/10.1117/12.2628250

KEYWORDS: Telescopes, Signal to noise ratio, Interferometers, Integrated optics, Visibility, Fourier transforms, Mirrors, Sensors, Optical tracking, K band, Adaptive optics, Active galactic nuclei, Astronomical interferometry

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

MATISSE, the VLTI mid-infrared imaging spectro-interferometer at the time of the first published astrophysical results

William Danchi, Claudia Paladini, Gérard Zins, Miguel Riquelme, Bruno Lopez, Stéphane Lagarde, Romain Petrov, Walter Jaffe, Fatmé Allouche, Julien Woillez, Florentin Millour, James Leftley, Andreas Glindemann, Paul Bristow, Markus Schoeller, Michael Lehmitz, Roy van Boekel, Felix Bettonvil, Mathias Henninger, Gerd Weigelt, Anthony Meilland, Alexis Matter, Sylvie Robbe-Dubois, Pierre Cruzalèbes, Eric Pantin, Michiel Hogerheijde, Jean-Charles Augereau, Jozsef Varga, Massinissa Hadjara, Phillippe Berio, Thomas Rivinius

Proceedings Volume 12183, 121830A (2022) https://doi.org/10.1117/12.2630164

KEYWORDS: Stars, Mid-IR, Spectral resolution, Telescopes, Visibility, Sensors, Observatories, Atmospheric optics, Astatine, Planets

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Proceedings Article | 30 December 2020 Presentation + Paper

Presentation + Paper

Commissioning MATISSE: operation and performances

Romain Petrov, Pierre Cruzalèbes, Stéphane Lagarde, Bruno Lopez, Walter Jaffe, Klaus Meisenheimer, Jozsef Varga, Alain Chelli, Markus Schöller, Fatmé Allouche, Alexis Matter, Anthony Meilland, Karl-Heinz Hofmann, Dieter Schertl, Leonard Burtscher, Sylvie Robbe-Dubois, Philippe Berio, Florentin Millour, Julien Woillez, Gerard Zins

Proceedings Volume 11446, 114460L (2020) https://doi.org/10.1117/12.2562569

KEYWORDS: Interferometry, Visibility, Sensors, Phase shift keying, Spatial filters, Telescopes, Modulation, Phase measurement, K band, Physics

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Progress of the CHARA/SPICA project

C. Pannetier, D. Mourard, F. Cassaing, F. Allouche, J. Monnier, N. Anugu, C. Bailet, P. Berio, T. ten Brummelaar, J. Dejonghe, D. Gies, L. Jocou, S. Kraus, S. Lacour, S. Lagarde, J. B. Le Bouquin, D. Lecron, 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 | 9 July 2018 Presentation + Paper

Presentation + Paper

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

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

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 | 9 July 2018 Paper

Paper

MATISSE: performance in laboratory, results of AIV in Paranal, and first results on sky

S. Lagarde, S. Robbe-Dubois, F. Allouche, Ph. Berio, B. Lopez, R. Petrov, F. Millour, A. Matter, P. Cruzalèbes, P. Antonelli, C. Bailet, Y. Bresson, J.-M. Clausse, Y. Fantei-Caujolle, A. Marcotto, A. Meilland, S. Morel, S. Rousseau, A. Soulain, G. Zins, W. Laun, T. Adler, R. Klein, T. Maurer, E. Eldswick, M. Heininger, P. Bristow, A. Glindemann, N. Hubin, L. Jochum, Th. Rivinus, M. Schoeller, J. Beltran, P. Bourget, A. Gallenne, Th. Guerlet, X. Haubois, D. Ives, G. Jakob, A. Meister, M. Riquelme, N. Schuhler, C. Stephan, P. Toledo, K. Tristam, J. Woillez, U. Neumann, A. Chelli, F. Guitton, K. Meisenheimer, B. Pichon, A. Spang, J. Varga, Th. Henning, W. Jaffe, L. Pasquini, Ph. Stee, G. Weigelt, F. Bettonvil, M. Lehmitz, U. Beckmann

Proceedings Volume 10701, 107010H (2018) https://doi.org/10.1117/12.2313270

KEYWORDS: L band, Photovoltaics, Spectral resolution, Visibility, Sensors, Interferometry, Astatine, Spatial filters, Telescopes, Calibration

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MATISSE (Multi AperTure mid-Infrared SpectroScopic Experiment) is the spectro-interferometer for the VLTI of the European Southern Observatory (ESO), operating in the L-, M- and N- spectral bands, and combining up to four beams from the unit or the auxiliary telescopes (UTs or ATs). MATISSE will offer new breakthroughs in the study of circumstellar environments by allowing the mapping of the material distribution, the gas and essentially the dust. The instrument consists in a warm optical system (WOP) accepting four beams from the VLTI and relaying them after a spectral splitting to cold optical benches (COB) located in two separate cryostats, one in L-M- band, and one in N-band. The test plan of the complete instrument has been conducted at the Observatoire de la Côte d’Azur in order to confirm the compliance of the performance with the high-level requirements. MATISSE has successfully passed the Preliminary Acceptance in Europe the 12th September 2017. Following this result, ESO gave approval for the instrument to be shipped to Paranal. The Alignment, Integration and Verification phase was conducted until end of February 2018, at the end of which first observations on sky have been performed to test the operations with the VLTI and to obtain first stellar light. The two first runs of the commissioning followed, respectively in March and in May 2018. It has the goal to optimize the MATISSE-VLTI communication, the acquisition procedures and the interface parameters. The observations were performed on bright L-M- and N- stars, with four ATs located on short baselines and UTs. The limit magnitudes will be deduced.

This paper reports on the performance of the instrument measured in laboratory (results of test plan in Nice and AIV in Paranal) in terms of spectral coverage, dispersion laws and spectral resolutions, and transfer function analysis: instrumental contrast, visibility accuracy, accuracy of the differential phase, of the closure-phase and of the differential visibility. It also provides results of the first tests on sky and the planning of the on-going commissioning.

Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

Commissioning MATISSE: first results

Pierre Cruzalèbes, Stéphane Lagarde, Sylvie Robbe-Dubois, Bruno Lopez, Philippe Berio, Florentin Millour, Fatmé Allouche, Yan Fanteï, Romain Petrov, Walter Jaffe, Alexis Matter, Antony Meilland, Sebastien Morel, Claudia Paladini, Thomas Rivinius, Sylvain Rousseau, Jozsef Varga, Gérard Zins, Alain Chelli, Andreas Glindemann, Markus Schöller

Proceedings Volume 10701, 1070109 (2018) https://doi.org/10.1117/12.2312104

KEYWORDS: Calibration, Visibility, L band, Signal to noise ratio, Sensors, Spectral resolution, Stars, Astronomical interferometry, Astronomical spectroscopy

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

The installation and ongoing commissioning of the MATISSE mid-infrared interferometer at the ESO Very Large Telescope Observatory

B. Lopez, S. Lagarde, A. Matter, T. Agocs, F. Allouche, P. Antonelli, J.-C. Augereau, C. Bailet, P. Berio, F. Bettonvil, U. Beckmann, R. van Boekel, Y. Bresson, P. Bristow, P. Cruzalebes, M. Delbo, C. Dominik, E. Elswijk, Y. Fantei, A. Glindemann, M. Heininger, K.-H. Hofmann, M. Hogerheijde, J. Hron, W. Jaffe, G. Kroes, W. Laun, M. Lehmitz, A. Meilland, K. Meisenheimer, F. Millour, S. Morel, U. Neumann, E. Pantin, R. Petrov, S. Robbe-Dubois, D. Schertl, M. Schoeller, S. Wolf, G. Zins, T. Henning, Ph. Stee, G. Weigelt

Proceedings Volume 10701, 107010Z (2018) https://doi.org/10.1117/12.2313388

KEYWORDS: Interferometry, Spectral resolution, Sensors, Mid-IR, Visibility, Stars, Imaging systems, Interferometers, Photometry, Observatories

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Proceedings Article | 4 August 2016 Paper

Paper

MATISSE: specifications and expected performances

A. Matter, R. Petrov, P. Berio, S. Robbe-Dubois, B. Lopez, F. Millour, S. Lagarde, P. Antonelli, F. Allouche, P. Cruzalebes, L. Bourgès, G. Bazin

Proceedings Volume 9907, 990728 (2016) https://doi.org/10.1117/12.2233542

KEYWORDS: Interferometry, Fourier transforms, Sensors, Visibility, Modulation, Photons, Signal to noise ratio, Photometry, Spectral resolution, L band

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Proceedings Article | 4 August 2016 Paper

Paper

Hierarchical fringe tracker to co-phase and coherence very large optical interferometers

Abdelkarim Boskri, Karim Agabi, Romain Petrov, Thami Elhalkouj, Stephane Lagarde, Jean-Pierre Folcher, Zouhair Benkhaldoum, Yves Bresson

Proceedings Volume 9907, 99071F (2016) https://doi.org/10.1117/12.2233107

KEYWORDS: Telescopes, Fourier transforms, Interferometers, Sensors, Spatial filters, Astatine, Phase measurement, Collimators, Actuators, Integrated optics

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Proceedings Article | 4 August 2016 Paper

Paper

MATISSE: alignment, integration, and test phase first results

B. Lopez, S. Morel, Ph. Berio, U. Beckmann, F. Bettonvil, J.-C. Gonzáles Herrera, M. Schöller, F. Allouche, S. Robbe-Dubois, S. Lagarde, U. Graser, M. Lehmitz, P. Bristow, A. Glindemann, W. Jaffe, J.-L. Lizon, M. Accardo, P. Cruzalèbes, Y. Fantei-Caujolle, A. Marcotto, M. Heininger, T. Agocs, R. Brast, E. Elswijk, D. Ives, W. Laun, K. Meixner, M. Mellein, U. Neumann, C. Bailet, J.-M. Clausse, A. Matter, A. Meilland, F. Millour, R. G. Petrov, R. Frahm, P. Antonelli, Y. Bresson

Proceedings Volume 9907, 99070C (2016) https://doi.org/10.1117/12.2232414

KEYWORDS: Interferometry, Beam splitters, Sensors, Mid-IR, Telescopes, Mid-IR, Mirrors, Optical alignment, L band, Spectral resolution, Calibration

Read Abstract +

MATISSE (Multi AperTure mid-Infrared SpectroScopic Experiment) is the spectro-interferometer for the VLTI of the European Southern Observatory, operating in near and mid-infrared, and combining up to four beams from the unit or the auxiliary telescopes. MATISSE will offer new breakthroughs in the study of circumstellar environments by allowing the multispectral mapping of the material distribution, the gas and essentially the dust.

The instrument consists in a warm optical system (WOP) accepting four optical beams and relaying them after a dichroic splitting (for the L and M- and N- spectral bands) to cold optical benches (COB) located in two separate cryostats. The Observatoire de la Côte d’Azur is in charge of the WOP providing the spectral band separation, optical path equalization and modulation, pupil positioning, beam anamorphosis, beam commutation, and calibration. NOVA-ASTRON is in charge of the COB providing the functions of beam selection, reduction of thermal background emission, spatial filtering, pupil transfer, photometry and interferometry splitting, additional beam anamorphosis, spectral filtering, polarization selection, image dispersion, and image combination. The Max Planck Institut für Radio Astronomie is in charge of the operation and performance validation of the two detectors, a HAWAII-2RG from Teledyne for the L- and M- bands and a Raytheon AQUARIUS for the N-band. Both detectors are provided by ESO. The Max Planck Institut für Astronomie is in charge of the electronics and the cryostats for which the requirements on space limitations and vibration stability resulted on very specific and stringent decisions on the design.

The integration and test of the COB: the two cryogenic systems, including the cold benches and the detectors, have been conducted at MPIA in parallel with the integration of the WOP at OCA. At the end of 2014, the complete instrument was integrated at OCA. Following this integration, a period of interface and alignment between the COB and the WOP took place resulting in the first interference fringes in the L-band during summer 2015 and the first interference fringes in the N-ban in March 2016.

After a period of optimization of both the instrument reliability and the environmental working conditions, the test plan is presently being conducted in order to evaluate the complete performance of the instrument and its compliance with the high-level requirements. The present paper gives the first results of the alignment, integration and test phase of the MATISSE instrument.

Proceedings Article | 4 August 2016 Paper

Paper

Data reduction for the MATISSE instrument

F. Millour, P. Berio, K.-H. Hofmann, D. Schertl, M. Heininger, F. Guitton, B. Lopez, A. Soulain, G. Weigelt, W. Jaffe, U. Beckmann, R. Petrov, F. Allouche, S. Robbe-Dubois, S. Lagarde, A. Meilland, A. Matter, P. Cruzalèbes

Proceedings Volume 9907, 990723 (2016) https://doi.org/10.1117/12.2232283

KEYWORDS: Modulation, Calibration, Sensors, Visibility, Interferometry, Telescopes, Distortion, Space telescopes, Atmospheric optics, Colorimetry

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Proceedings Article | 4 August 2016 Paper

Paper

An overview of the mid-infrared spectro-interferometer MATISSE: science, concept, and current status

A. Matter, B. Lopez, P. Antonelli, M. Lehmitz, F. Bettonvil, U. Beckmann, S. Lagarde, W. Jaffe, R. Petrov, P. Berio, S. Robbe-Dubois, A. Glindemann, P. Bristow, M. Schoeller, T. Lanz, T. Henning, G. Weigelt, M. Heininger, S. Morel, P. Cruzalebes, K. Meisenheimer, R. Hofferbert, T. Agocs, J.-C. Augereau, G. Avila, C. Bailet, G. van Belle, J.-P. Berger, P. Bourget, R. Conzelmann, W. Danchi, M. Delbo, C. Dominik, E. Elswijk, G. Finger, A. Gabasch, S. Guniat, H. Hanenburg, K.-H. Hofmann, M. Hogerheijde, R. ter Horst, J. Hron, D. Ives, G. Jakob, T. Kroener, G. Kroes, S. Kuindersma, L. Labadie, J.-L. Lizon, C. Lucuix, F. Martinache, N. Mauclert, L. Mehrgan, M. Mellein, S. Ottogalli, R. Palsa, E. Pantin, J.-U. Pott, G. Rupprecht, M. Schuil, A. Spang, J. Stegmeier, N. Tromp, L. Venema, F. Millour, Y. Bresson, F. Allouche, J. Behrend, R. van Boekel, R. Brast, J.-M. Clausse, C. Connot, G. Csepany, A. van Duin, Y. Fantei, F. Gonté, U. Graser, F. Guitton, M. De Haan, P. Haguenauer, C Hummel, J. Isderda, A. Jasko, P. Jolley, S. Kiraly, J. Kragt, W. Laun, C. Leinert, A. Marcotto, G. Martinot-Lagarde, A. Meilland, S. Menardi, A. Merand, U. Neumann, E. Nussbaum, J. Panduro, I. Percheron, T. Phan Duc, E. Pozna, R. Roelfsema, D. Schertl, C. Schmidt, F. Vakili, M. Vannier, K. Wagner, J. Woillez, S. Wolf

Proceedings Volume 9907, 99070A (2016) https://doi.org/10.1117/12.2233052

KEYWORDS: Mid-IR, Interferometry, Telescopes, Signal detection, Sensors, Stars, Spectral resolution, Fourier transforms, L band, Cameras

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Proceedings Article | 24 July 2014 Paper

Paper

MATISSE status report and science forecast

B. Lopez, S. Lagarde, R. Petrov, P. Antonelli, Ph. Bério, F. Millour, S. Robbe-Dubois, Th. Lanz, C. Bailet, S. Bonhomme, Y. Bresson, J. Clausse, O. Chesneau, A. Crida, M. Delbo , M. Dugué, Y. Fanteï, P. Girard, V. Girault, F. Guitton, Y. Hughes, A. Marcotto, F. Martinache, G. Martinot-Lagarde, N. Mauclert, A. Meilland, J. Menut, S. Ottogalli, L. Thiam, M. Vannier, W. Jaffe, C. Dominik, M. Hogerheijde, F. Vakili, M. Schöller, P. Bristow, A. Glindemann, J.-C. Gonzalez, J.-P. Berger, R. Brast, F. Delplancke, G. Finger, A. Gabasch, P. Gitton, F. Gonté, S. Guniat, P. Haguenauer, D. Ives, G. Jakob, P. Jolley, J. Lizon, Ch. Lucuix, L. Mehrgan, S. Ménardi, S. Morel, R. Palsa, I. Percheron, T. Phan Duc, Eszter Pozna, J. Woillez, G. Ávila, P. Bourget, G. Rupprecht, J. Stegmeier, U. Beckman, G. Weigelt, J. Behrend, C. Connot, M. Heininger, K.-H. Hofmann, T. Kroener, E. Nussbaum, D. Schertl, F. Bettonvil, L. Venema, T. Agócs, E. Elswijk, M. De Haan, H. Hanenburg, R. ter Horst, J. Kragt, G. Kroes, R. Navarro, F. Rigal, N. Tromp, U. Graser, T. Henning, Roy von Boekel, R. Köhler, W. Laun, M. Lehmitz, Ch. Leinert, M. Mellein, K. Meisenheimer, U. Neumann, J. Panduro, J.-U. Pott, K. Wagner, S. Wolf, J.-C. Augereau, A. Matter, G. Csépány, A. Jaskó, L. Mosoni, W. Danchi, A. Glazenborg, J. Hron, L. Labadie, E. Pantin, F. Przygodda, A. Richichi, G. van Belle

Proceedings Volume 9146, 91460M (2014) https://doi.org/10.1117/12.2056419

KEYWORDS: Interferometry, Sensors, Mid-IR, Stars, Telescopes, Visibility, Planets, Spectral resolution, Photometry, Fourier transforms

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Proceedings Article | 24 July 2014 Paper

Paper

Long baseline interferometry in the visible: the FRIEND project

P. Berio, Y. Bresson, J. Clausse, D. Mourard, J. Dejonghe, S. Lagarde, C. Bailet, O. Chesneau, P. Stee, K. Perraut, N. Nardetto, A. Meilland, Isabelle Tallon-Bosc, A. Duthu, A. Spang, A. Marcotto, P. Feautrier, P. Balard, J. Gach

Proceedings Volume 9146, 914616 (2014) https://doi.org/10.1117/12.2054890

KEYWORDS: Sensors, Telescopes, Interferometry, Visibility, Adaptive optics, Spectral resolution, Photon counting, Stars, Signal to noise ratio, Visible radiation

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Proceedings Article | 24 July 2014 Paper

Paper

MATISSE: warm optics integration and performance in laboratory

S. Robbe-Dubois, S. Lagarde, P. Antonelli, Y. Bresson, C. Bailet, A. Marcotto, B. Lopez, L. Thiam, Ph. Berio, J.-M. Clausse, Y. Fanteï Caujolle, M. Dugué, R. Petrov, Th. Lanz, S. Ottogalli

Proceedings Volume 9146, 91462F (2014) https://doi.org/10.1117/12.2056426

KEYWORDS: Mirrors, Integrated optics, Modulation, Interferometry, Interferometers, Telescopes, Optical alignment, Thermography, Mid-IR, Sensors

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Proceedings Article | 24 July 2014 Paper

Paper

Hierarchical fringe tracking

Suvendu Rakshit, Abdelkarim Boskri, Romain Petrov, Thami Elhalkouj, Jean-Pierre Folcher, Stéphane Lagarde, Yves Bresson, Zouhair Benkhaldoun, Mohamed Lazrek

Proceedings Volume 9146, 91462P (2014) https://doi.org/10.1117/12.2056677

KEYWORDS: Fourier transforms, Telescopes, Spatial filters, Sensors, Integrated optics, Interferometers, Interferometry, Spectral resolution, Optical interferometry, Optical tracking

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Proceedings Article | 12 September 2012 Paper

Paper

VLTI/AMBER differential interferometry of the broad-line region of the quasar 3C273

Stéphane Lagarde, Suvendu Rakshit, Alessandro Marconi, Gerd weigelt, Romain Petrov, Florentin Millour, Martin Vannier

Proceedings Volume 8445, 84450W (2012) https://doi.org/10.1117/12.926595

KEYWORDS: Visibility, Calibration, Interferometry, Data processing, Error analysis, Colorimetry, Fourier transforms, Spectral resolution, K band, Sensors

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Proceedings Article | 12 September 2012 Paper

Paper

Perspective of imaging in the mid-infrared at the Very Large Telescope Interferometer

S. Lagarde, P. Antonelli, W. Jaffe, R. Petrov, L. Venema, Sylvie Robbe-Dubois, F. Bettonvil, P. Berio, R. Navarro, U. Graser, U. Beckman, G. Weigelt, F. Vakili, T. Henning, J.-C. Gonzales, S. Wolf, C. Bailet, J. Behrend, Y. Bresson, O. Chesneau, J. Clausse, C. Connot, M. Dugué, Y. Fantei, E. Elswijk, H. Hanenburg, K. Hofmann, M. Heininger, R. ter Horst, J. Hron, J. Kragt, N. Tromp, T. Agocs, G. Kroes, W. Laun, Ch. Leinert, M. Lehmitz, A. Matter, J. Menut, F. Millour, U. Neumann, E. Nussbaum, S. Ottogalli, J.-U. Pott, F. Rigal, A. Roussel, D. Schertl, M. Vannier, K. Wagner, M. Mellein, T. Kroener, N. Mauclert, P. Girard, G. Lagarde, L. Mosoni, A. Jasko, A. Glindemann, T. Phan Duc, G. Finger, D. Ives, G. Jakob, I. Percheron, G. Avila, R. Palsa, Eszter Pozna, J. Lizon, Ch. Lucuix, S. Menardi, P. Haguenauer, P. Gitton, S. Morel, F. Gonté, P. Jolley, G. Rupprecht, P. Bourget, F. Delplancke, L. Mehrgan, J. Stegmeier, G. van Belle, A. Richichi, A. Moorwood, B. Lopez

Proceedings Volume 8445, 84450R (2012) https://doi.org/10.1117/12.926238

KEYWORDS: Interferometry, Sensors, Visibility, Mid-IR, L band, Telescopes, Spectral resolution, Image restoration, Interferometers, Photometry

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Proceedings Article | 12 September 2012 Paper

Paper

MATISSE: concept, specifications, and performances

U. Beckmann, A. Matter, S. Lagarde, W. Jaffe, F. Bettonvil, B. Lopez, R. Petrov, R. Navarro, Ph. Berio, U. Graser, L. Venema, S. Robbe-Dubois, P. Antonelli

Proceedings Volume 8445, 84452J (2012) https://doi.org/10.1117/12.926285

KEYWORDS: Fourier transforms, Sensors, L band, Visibility, Spatial filters, Signal to noise ratio, Modulation, Photons, Interferometry, Photometry

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Proceedings Article | 12 September 2012 Paper

Paper

Parasitic interference in classical and nulling stellar interferometry

D. Defrère, S. Lagarde, B. Lopez, R. Petrov, A. Matter, M. Vannier, W. Danchi

Proceedings Volume 8445, 84453J (2012) https://doi.org/10.1117/12.926456

KEYWORDS: Interferometers, Nulling interferometry, Signal to noise ratio, Interferometry, Planets, Telescopes, Contamination, Phase shifts, Stars, Stellar interferometry

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Proceedings Article | 22 July 2010 Paper

Paper

Fresnel diffraction in an interferometer: application to MATISSE

Y. Bresson, S. Robbe-Dubois, S. Lagarde, P. Antonelli, B. Lopez, E. Aristidi, R. Petrov

Proceedings Volume 7734, 77343W (2010) https://doi.org/10.1117/12.856389

KEYWORDS: Point spread functions, Collimation, Near field diffraction, Fourier transforms, Interferometers, Diffraction, Spatial coherence, Wave propagation, Optical simulations, Calibration

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Proceedings Article | 28 July 2008 Paper

Paper

MATISSE: concept analysis

Y. Bresson, Ch. Leinert, K. H. Hofmann, S. Kraus, W. Jaffe, A. Matter, R. G. Petrov, S. Lagarde, B. Lopez, P. Antonelli

Proceedings Volume 7013, 701332 (2008) https://doi.org/10.1117/12.789391

KEYWORDS: Signal to noise ratio, Mid-IR, Interferometry, Sensors, Telescopes, Bismuth, Photometry, Contamination, Spectroscopy, Interferometers

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Proceedings Article | 28 July 2008 Paper

Paper

MATISSE: perspective of imaging in the mid-infrared at the VLTI

R. Navarro, Y. Bresson, U. Beckman, T. Ratzka, K. Wagner, B. Valat, L. Mosoni, B. Lopez, H. Hannenburg, S. Lagarde, D. Schertl, F.-X. Schmider, B. Stecklum, F. Millour, A. Richichi, S. Robbe-Dubois, Ph. Mathias, S. Kraus, P. Antonelli, A. Niedzielski, A. Glazenborg, H. Linz, U. Neumann, W. Jaffe, S. Wolf, J.-C. Augereau, E. Nussbaum, A. Matter, N. Berruyer, T. Henning, Y. Hugues, F. Rigal, Ch. Leinert, W. Laun, M. Dugué, N. Nardetto, Ph. Berio, J.-L. Lizon, G. Finger, E. Thiebaut, J. Menut, M. Vannier, J. Hron, C. Connot, K. Hofmann, F. Kerschbaum, F. Vakili, U. Graser, L. B. F. M. Waters, S. Jankov, M. Heininger, G. Weigelt, J. Olofsson, W. Danchi, J. Behrend, Y. Rabbia, S. Flament, O. Chesneau, A. Roussel, J. Clausse, R. Mathar, R. Petrov, P. Abraham, K. Meisenheimer, K. Demyk, G. Kroes

Proceedings Volume 7013, 70132B (2008) https://doi.org/10.1117/12.789412

KEYWORDS: Mid-IR, Planets, Stars, Interferometry, Spectral resolution, Spectroscopy, Mirrors, Telescopes, Sensors, Observatories

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Proceedings Article | 28 July 2008 Paper

Paper

First step to detect an extrasolar planet using simultaneous observations with the two VLTI instruments AMBER and MIDI

S. Morel, S. Lagarde, M. Vannier, B. Lopez, C. Leinert, A. Matter, T. Rivinius, W. Jaffe, R. Petrov, F. Rantakyrö

Proceedings Volume 7013, 701341 (2008) https://doi.org/10.1117/12.789368

KEYWORDS: Phase measurement, Stars, Calibration, Planets, Interferometry, Exoplanets, Jupiter, Water, Phase interferometry, K band

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Proceedings Article | 29 June 2006 Paper

Paper

VEGA: a visible spectrograph and polarimeter for CHARA science cases description

Slobodan Jankov, Pierre Kervella, Nicolas Nardetto, Jean-Baptiste Le Bouquin, Antoine Mérand, Chantal Stehlé, Philippe Stee, Denis Mourard, Romain Petrov, Gerd Weigelt, Armando Domiciano de Souza, Renaud Foy, Stéphane Lagarde, Pavel Koubsky, Daniel Bonneau, Paul Berlioz-Arthaud, Petr Harmanec, Philippe Mathias, Karine Rousselet-Perraut

Proceedings Volume 6268, 62683R (2006) https://doi.org/10.1117/12.684479

KEYWORDS: Stars, Visible radiation, Spectral resolution, Spatial resolution, Interferometry, Interferometers, Visibility, Signal to noise ratio, Magnetism, Spectroscopy

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Proceedings Article | 29 June 2006 Paper

Paper

VEGA: a visible spectrograph and polarimeter for CHARA

G. Merlin, A. Blazit, D. Mourard, S. Lagarde, S. Bosio, H. McAlister, F. Hénault, Y. Bresson, P. Stee, N. Nardetto, K. Rousselet-Perraut, A. Roussel, J.-M. Clausse, A. Mérand, J. Sturmann, T. ten Brummelaar, R. Petrov, A. Marcotto, I. Tallon-Bosc, P. Kervella, L. Sturmann, D. Bonneau

Proceedings Volume 6268, 62683Q (2006) https://doi.org/10.1117/12.684475

KEYWORDS: Spectrographs, Visible radiation, Cameras, Sensors, Spectral resolution, Telescopes, Polarimetry, Visibility, Polarization, Signal to noise ratio

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Proceedings Article | 28 June 2006 Paper

Paper

MATISSE: a four beam combiner in the mid-infrared for the VLTI

R. Petrov, P. Antonelli, D. Schertl, F. Vakili, O. Chesneau, S. Robbe-Dubois, W. Jaffe, U. Beckman, Y. Bresson, S. Wolf, C. Connot, A. Niedzielski, Y. Hugues, B. Lopez, G. Weigelt, L. Mosoni, Ch. Leinert, J. Behrend, J. Menut, E. Nussbaum, A. Roussel, K. Hofmann, A. Matter, F. Millour, U. Neumann, P. Abraham, T. Henning, S. Kraus, M. Dugué, W. Laun, K. Wagner, S. Lagarde, M. Heininger, U. Graser, L.B.F.M. Waters, A. Glazenborg, T. Ratzka

Proceedings Volume 6268, 62683M (2006) https://doi.org/10.1117/12.671690

KEYWORDS: Sensors, Signal to noise ratio, Telescopes, Mid-IR, Spectral resolution, Interferometers, Spectroscopes, Phase measurement, Interferometry, Mirrors

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Proceedings Article | 27 June 2006 Paper

Paper

MATISSE: perspective of imaging in the mid-infrared at the VLTI

O. Chesneau, K. Wagner, R. Petrov, A. Roussel, F. Millour, J. Augereau, T. Henning, J. Clausse, W. Laun, K. Meisenheimer, P. Abraham, J. Menut, P. Antonelli, H. Linz, F.-X. Schmider, S. Wolf, S. Flament, U. Graser, W. Jaffe, M. Dugué, Y. Hugues, Ph. Mathias, U. Beckman, F. Vakili, G. Weigelt, S. Jankov, A. Matter, B. Stecklum, E. Thiebaut, J. Behrend, U. Neumann, N. Berruyer, T. Ratzka, C. Connot, S. Lagarde, Ch. Leinert, S. Robbe-Dubois, E. Nussbaum, K. Demyk, L. Mosonic, L. B. F. M. Waters, D. Schertl, M. Heininger, A. Niedzielski, Y. Bresson, B. Lopez, A. Glazenborg, W. Danchi, K. Hofmann, S. Kraus

Proceedings Volume 6268, 62680Z (2006) https://doi.org/10.1117/12.671636

KEYWORDS: Mid-IR, Planets, Stars, Spectral resolution, Interferometry, Spectroscopy, Signal to noise ratio, Visibility, Spatial resolution, Sensors

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Proceedings Article | 20 October 2004 Paper

Paper

Design and tests for the correction of atmospheric and instrumental effects on color-differential phase with AMBER/VLTI

Sylvie Robbe-Dubois, Pierre Antonelli, Yves Bresson, Andreas Glindemann, Romain Petrov, Etienne LeCoarer, Gilles Duvert, Bruno Lopez, Fabien Malbet, Markus Schoeller, Martin Vannier, Fredrik Rantakyro, Stephane Lagarde, Sebastien Morel, Karine Rousselet-Perraut, Carla Gil, Florentin Millour

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551601

KEYWORDS: Calibration, Colorimetry, Interferometry, Phase measurement, Signal to noise ratio, Atmospheric corrections, K band, Stars, Dispersion, Telescopes

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Proceedings Article | 20 October 2004 Paper

Paper

An interferometric imaging test bench: the densified pupil concept applied to the VLTI

Fabien Patru, Denis Mourard, Pierre Antonelli, Jean-Michel Clausse, Alain Spang, Stephane Lagarde, Olivier Lardiere, Yves Bresson

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.567527

KEYWORDS: Astatine, Mirrors, Point spread functions, Interferometry, Imaging systems, Stars, Spatial filters, Reflectivity, Coronagraphy, Wavefront sensors

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Proceedings Article | 20 October 2004 Paper

Paper

AMBER integration and laboratory performances

Jan Behrend, Pierre Antonelli, Stephane Lagarde, Gerard Zins, Laurence Gluck, Eric Tatulli, Simone Busoni, Romain Petrov, Alain Delboulbe, Yves Bresson, Pierre Kern, Udo Beckmann, Etienne LeCoarer, Alain Roussel, Matteo Accardo, Fabien Malbet, Franco Lisi, Brahim Arezki, Yves Magnard, Florentin Millour, Carla Gil, Sylvie Robbe-Dubois, Karine Rousselet-Perraut, Gilles Duvert

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551284

KEYWORDS: Spectral resolution, K band, Polarizers, Visibility, Spatial filters, Calibration, Telescopes, Interferometry, Single mode fibers, Sensors

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Proceedings Article | 20 October 2004 Paper

Paper

The VLTI focal instrument Amber: results of the first phase of the alignment, integration, and verification in Paranal

Alain Roussel, Alain Delboulbe, Gerd Weigelt, Pierre Kern, Nicholas Haddad, Pedro Mardones, Nico Housen, Etienne LeCoarer, Karine Rousselet-Perraut, Franco Lisi, Matteo Accardo, Eric Tatulli, Florentin Millour, Carla Gil, Denis Mourard, Romain Petrov, Stephane Lagarde, Fredrik Rantakyro, Markus Schoeller, Gerard Zins, Matthias Heininger, Paolo Stefanini, Laurence Gluck, Fabien Malbet, Martin Vannier, Sylvie Robbe-Dubois, Andrea Richichi, Udo Beckmann, Gilles Duvert, Yves Bresson, Pierre Antonelli, Mario Kiekebusch, Florence Puech

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550323

KEYWORDS: Stellar interferometry, Astronomy, Optical instrument design, Telescopes, Stars, Visibility

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Proceedings Article | 20 October 2004 Paper

Paper

APreS-MIDI, APerture Synthesis in the MID-infrared with the VLTI

Pierre Antonelli, Nicole Berruyer, Michel Dugue, Thomas Henning, Bruno Lopez, Gerd Weigelt, Philippe Mathias, Klaus Meisenheimer, Uwe Graser, Sebastian Wolf, Olivier Chesneau, Frank Przygodda, Eric Thiebaut, Karl-Heinz Hofmann, Annelie Glazenborg, Philippe Gitton, Jean-Luc Menut, Christoph Leinert, Andreas Glindemann, Yves Bresson, J. C. Augereau, Stephane Lagarde, Alain Roussel, Ralf-Rainer Rohloff, Sebastien Flament, Anne Dutrey, Yves Hugues

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551419

KEYWORDS: Mid-IR, Stars, Telescopes, Visibility, Synthetic apertures, Interferometry, Interferometers, Astatine, Galactic astronomy, Space telescopes

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Proceedings Article | 20 October 2004 Paper

Paper

Recombining light of the VLTI at 10 microns by densifying the images

Alain Roussel, Sebastien Flament, Olivier Chesneau, Yves Bresson, Jean-Luc Menut, Gerd Weigelt, Thomas Henning, Frank Przygodda, Christoph Leinert, Uwe Graser, Klaus Meisenheimer, Philippe Gitton, Philippe Mathias, Andreas Glindemann, Sebastian Wolf, Bruno Lopez, Karl-Heinz Hofmann, Anne Dutrey, Annelie Glazenborg-Kluttig, Eric Thiebaut, Stephane Lagarde, Nicole Berruyer, Yves Hugues, Michel Dugue, Ralf-Rainer Rohloff, Pierre Antonelli, J. C. Augereau

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551543

KEYWORDS: Telescopes, Synthetic apertures, Mid-IR, Interferometry, Astatine, Segmented mirrors, Observatories, Optical instrument design, Stars, Mirrors

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Proceedings Article | 21 February 2003 Paper

Paper

APreS-MIDI: aperture synthesis in the mid-infrared with the VLTI

Pierre Antonelli, Alain Roussel, Michel Dugue, Djamel Mekarnia, P. Mathias, Yves Bresson, Jean Gay, Eric Thiebaut, Bruno Lopez, Anne Dutrey, Stephane Lagarde

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.457146

KEYWORDS: Telescopes, Mid-IR, Stars, Interferometry, Interferometers, Synthetic apertures, Astatine, Space telescopes, Signal to noise ratio, Galactic astronomy

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Proceedings Article | 21 February 2003 Paper

Paper

Using the near-infrared VLTI instrument AMBER

Sylvie Robbe-Dubois, Fabien Malbet, Pierre Antonelli, Franco Lisi, Denis Mourard, Karine Rousselet-Perraut, Martin Vannier, Michel Dugue, Gilles Duvert, Udo Beckmann, Stephane Lagarde, Gerd Weigelt, Romain Petrov, Alain Chelli, Pascal Puget, Sandro Gennari, Etienne Lecoarer

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459113

KEYWORDS: Calibration, Visibility, Stars, Telescopes, Spectrographs, Sensors, Phase measurement, Spatial filters, Planets, Astatine

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Proceedings Article | 21 February 2003 Paper

Paper

VLTI focal instrument AMBER: results of laboratory commissioning of the warm optics

Sylvie Robbe-Dubois, Pascal Puget, Martin Vannier, Stephane Lagarde, Andre Roussel, Pierre Antonelli, S. Bonhomme, Francois Reynaud, Romain Petrov, Gregoire Martinot-Lagarde, Karine Rousselet-Perraut, Daniel Tassot, Yves Bresson

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.458814

KEYWORDS: Spatial filters, Telescopes, Optical alignment, Spectrographs, Visible radiation, Sensors, K band, Calibration, Optical components, Radio optics

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Proceedings Article | 21 February 2003 Paper

Paper

Potential of differential interferometry with AMBER from theoretical and laboratory studies

Bruno Lopez, Martin Vannier, Romain Petrov, Stephane Lagarde, Sylvie Robbe-Dubois, Yves Bresson

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459701

KEYWORDS: Colorimetry, Interferometry, Calibration, Optical fibers, Signal to noise ratio, Stars, Dispersion, Planets, Refractor telescopes, Absorption

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Proceedings Article | 5 July 2000 Paper

Paper

AMBER: the near-infrared focal instrument for the Very Large Telescope Interferometer

Gregoire Martinot-Lagarde, Karim Agabi, Djamel Mekarnia, Philippe Berio, Karine Perraut-Rousselet, M. Geng, Yves Rabbia, Stephane Lagarde, Gilles Duvert, Karl-Heinz Hofmann, Pascal Puget, Sandro Gennari, Andrea Richichi, John Michel LeContel, Frederic Cassaing, Markus Schoeller, Francois Reynaud, Thierry Forveille, Michel Sacchettini, Sylvie Robbe-Dubois, Jean-Louis Monin, Gerd Weigelt, Bruno Lopez, Romain Petrov, Yves Bresson, Etienne LeCoarer, Isabelle Tallon-Bosc, Carlo Baffa, David Mouillet, Danielle LeContel, Andre Glentzlin, Udo Beckmann, Daniel Kamm, Pierre Antonelli, Denis Mourard, E. Fossat, Eric Aristidi, Franco Lisi, Albrecht Dreiss, Gilbert Mars, Fabien Malbet, Christian Perrier-Bellet, Alain Chelli, Michel Dugue, Sylvestre Rebattu

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390256

KEYWORDS: Telescopes, Visibility, Interferometry, Spectrographs, Adaptive optics, Sensors, Stars, Spatial filters, Interferometers, Optical fibers

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Proceedings Article | 5 July 2000 Paper

Paper

AMBER: optical design and expected performance

Fabien Malbet, Sylvie Robbe-Dubois, Karine Perraut-Rousselet, Stephane Lagarde, Romain Petrov, Yves Bresson, Sandro Gennari, Sylvestre Rebattu, Yves Rabbia, Pierre Antonelli, Francois Reynaud, Franco Lisi, Udo Beckmann, Gregoire Martinot-Lagarde

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390212

KEYWORDS: Spectrographs, Interferometry, Wavefronts, Calibration, Telescopes, Sensors, Spatial filters, Tolerancing, K band, Visibility

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Proceedings Article | 9 June 1994 Paper

Paper

Franco-Mexican Differential Speckle Interferometer

Romain Petrov, Salvador Cuevas, Alain Chelli, Andre Couve, Leonardo Sanchez, Silvio Tinoco, Stephane Lagarde

Proceedings Volume 2200, (1994) https://doi.org/10.1117/12.177280

KEYWORDS: Speckle, Sensors, Spectrographs, Diffraction, Interferometers, Mirrors, Stars, Telescopes, Calibration, Photon counting

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Showing 5 of 46 publications

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