Dr. Isabelle Tallon-Bosc Profile

Dr. Isabelle Tallon-Bosc

at Ctr de Recheche Astrophysique de Lyon

SPIE Involvement:

Author

Publications (28)

Proceedings Article | 30 August 2022 Presentation + Paper

Presentation + Paper

Solar wavefront sensing at THEMIS with self-calibrated reference image and estimation of the noise covariance

Michel Tallon, Éric Thiébaut, Isabelle Tallon-Bosc, Bernard Gelly, Loïc Denis

Proceedings Volume 12185, 121852J (2022) https://doi.org/10.1117/12.2630379

KEYWORDS: Optimization (mathematics), Mathematical modeling, Solar telescopes, Motion measurement, Inverse problems, Wavefront sensors, Error analysis, Adaptive optics, Calibration, Image sensors, Image analysis, Telescopes, Sensors, Sun, Image processing

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Proceedings Article | 30 August 2022 Presentation + Paper

Presentation + Paper

Closing the loop as an inverse problem: the real-time control of Themis adaptive optics

Éric Thiébaut, Michel Tallon, Isabelle Tallon-Bosc, Bernard Gelly, Richard Douet, Maud Langlois, Gil Moretto

Proceedings Volume 12185, 1218507 (2022) https://doi.org/10.1117/12.2630497

KEYWORDS: Adaptive optics, Wavefronts, Wavefront sensors, Deformable mirrors, Real-time computing, Image sensors, Cameras, Actuators, Calibration, Inverse problems

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

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

A. Boccaletti, G. Chauvin, F. Wildi, J. Milli, E. Stadler, E. Diolaiti, R. Gratton, F. Vidal, M. Loupias, M. Langlois, F. Cantalloube, M. N’Diaye, D. Gratadour, F. Ferreira, M. Tallon, J. Mazoyer, D. Segransan, D. Mouillet, J.-L. Beuzit, M. Bonnefoy, R. Galicher, A. Vigan, I. Snellen, M. Feldt, S. Desidera, S. Rousseau, A. Baruffolo, C. Goulas, P. Baudoz, C. Bechet, M. Benisty, A. Bianco, B. Carry, E. Cascone, B. Charnay, E. Choquet, V. Christiaens, F. Cortecchia, V. Di Capprio, A. De Rosa, C. Desgrange, V. D'Orazi, S. Douté, M. Frangiamore, E. Gendron, C. Ginski, E. Huby, C. Keller, C. Kulcsár, R. Landman, S. Lagarde, E. Lagadec, A.-M. Lagrange, M. Lombini, M. Kasper, F. Ménard, Y. Magnard, G. Malaguti, D. Maurel, D. Mesa, G. Morgante, E. Pantin, T. Pichon, A. Potier, P. Rabou, S. Rochat, l. Terenzi, E. Thiébaut, I. Tallon-Bosc, H.-F Raynaud, D. Rouan, 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 | 12 July 2019 Open Access

Open Access

Paper

The evanescent wave coronagraph project: development status and potential for space based observations

Mary Angelie Alagao, Christophe Buisset, Thierry Lépine, Eric Thiébaut, Maud Langlois, Michel Tallon, Isabelle Tallon-Bosc, Yves Rabbia, Saran Poshyachinda, Boonrucksar Soonthornthum

Proceedings Volume 11180, 111806Q (2019) https://doi.org/10.1117/12.2536161

KEYWORDS: Coronagraphy, Stars, Point spread functions, Adaptive optics, Prototyping, Mirrors, Telescopes, V band, Optical instrument design, Deformable mirrors

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The Evanescent Wave Coronagraph (EvWaCo) is a coronagraph with an occulting mask based on the frustration of total internal reflection to i) produce an achromatic extinction of the central star and ii) reveal the faint companion surrounding the star. Results obtained in laboratory conditions show contrast performance of a few 10^-6 between 10 λ_C/D and 20 λ_C/D over the full I-band centered at the wavelength λ_C = 800 nm with a spectral ratio of Δλ/ λ_C ≈ 20% in unpolarized light.

In this paper, we discuss the advantages of using EvWaCo to observe and characterize exoplanets with a space-based telescope. In the first section, we describe the system and present the current results obtained with the EvWaCo testbed. We also illustrate the capability of this coronagraph to detect the companion 30,000 times (respectively, 100,000 times) fainter than the central star at distances equal to 15 Airy radii (respectively, 30 Airy radii) from the PSF center in polychromatic and unpolarized light.

In the second section, we describe the design of the prototype dedicated to the on-sky tests of the instrument with the 2.4 m Thai National Telescope at horizon 2020. This prototype has been designed with the objective to reach a contrast equal to a few 10^-4 at the inner working angle (IWA) equal to 3 λ/D from the star PSF center while observing through the atmosphere over the full photometric I-band. This prototype will include an adaptive optics specified to reach at λ ≈ 800 nm a Strehl ratio > 0.8 for magnitude m < 7.

In the third section, we show the theoretical performance of EvWaCo: a contrast comprised between a few 10^-6 and 10^-7 in the I-Band between 3 λ/D and 10 λ/D in the I-Band for an IWA equal to 3 λ/D with a Gaussian apodization in unpolarized light. We also show that similar contrasts performance are obtained in the V-, R-, bands, thus illustrating the EvWaCo quasi-achromaticity. Finally, we discuss the advantages and the limitation using the proposed concept for space-based observations and spectral characterization of exoplanets.

Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

The evanescent wave coronagraph project: setup results and demonstrator preliminary design

Christophe Buisset, Thierry Lépine, Eric Thiébaut, Maud Langlois, Michel Tallon, Mary Angelie Alagao, Isabelle Tallon-Bosc, Yves Rabbia, Saran Poshyachinda, Boonrucksar Soonthornthum , Elsa Ducrot

Proceedings Volume 10706, 107062P (2018) https://doi.org/10.1117/12.2311958

KEYWORDS: Coronagraphy, Adaptive optics, Stars, Point spread functions, Wavefronts, Prototyping, Wavefront distortions, Mirrors, Telescopes, Polishing

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Proceedings Article | 9 July 2018 Paper

Paper

Optical interferometry image reconstruction contest VIII

Antoine Mérand, Antxon Alberdid, Jacques Kluska, Isabelle Tallon-Bosc, Michel Tallon, Éric Thiébaut, Joel Sánchez-Bermudez, Rainer Schödel, Ferréol Soulez, John Young

Proceedings Volume 10701, 107011U (2018) https://doi.org/10.1117/12.2500674

KEYWORDS: Image restoration, Data modeling, Optical interferometry, Interferometry, Reconstruction algorithms

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

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

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

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

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

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Proceedings Article | 8 August 2016 Paper

Paper

Effective a posteriori co-phasing of interferometric fringe data

Antony Schutz, Éric Thiébaut, Ferréol Soulez, Michel Tallon, Gilles Duvert, Isabelle Tallon-Bosc

Proceedings Volume 9907, 99073D (2016) https://doi.org/10.1117/12.2232915

KEYWORDS: Interferometry, Colorimetry, Turbulence, Signal to noise ratio, Visibility, Phase shifts, Phase measurement, Error analysis, Calibration, Affine motion model

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Proceedings Article | 4 August 2016 Paper

Paper

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

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

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

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

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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, A. Duthu, S. Lagarde, A. Meilland, K. Perraut, Isabelle Tallon-Bosc, N. Nardetto, A. Spang, C. Bailet, A. Marcotto, O. Chesneau, P. Stee, 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

Modeling chromatic instrumental effects for a better model fitting of optical interferometric data

M. Tallon, I. Tallon-Bosc, O. Chesneau, L. Dessart

Proceedings Volume 9146, 91460N (2014) https://doi.org/10.1117/12.2057354

KEYWORDS: Data modeling, Visibility, Instrument modeling, Stars, Interferometry, Atmospheric modeling, Sensors, Interferometers, Colorimetry, Point spread functions

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Proceedings Article | 24 July 2014 Paper

Paper

Optimal a posteriori fringe tracking in optical interferometry

Ferréol Soulez, Éric Thiebaut, Michel Tallon, Isabelle Tallon-Bosc, Paulo Garcia

Proceedings Volume 9146, 91462Y (2014) https://doi.org/10.1117/12.2056590

KEYWORDS: Visibility, Signal to noise ratio, Sensors, Data modeling, Photons, Optical tracking, Interferometry, Optical interferometry, Turbulence, Colorimetry

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Proceedings Article | 12 September 2012 Paper

Paper

Performance, results, and prospects of the visible spectrograph VEGA on CHARA

Denis Mourard, Mounir Challouf, Roxanne Ligi, Philippe Bério, Jean-Michel Clausse, Jérôme Gerakis, Laurent Bourges, Nicolas Nardetto, Karine Perraut, Isabelle Tallon-Bosc, H. McAlister, T. ten Brummelaar, S. Ridgway, J. Sturmann, L. Sturmann, N. Turner, C. Farrington, P. Goldfinger

Proceedings Volume 8445, 84450K (2012) https://doi.org/10.1117/12.925223

KEYWORDS: Calibration, Sensors, Visibility, Stars, Signal to noise ratio, Visible radiation, Spectral resolution, Error analysis, Spectrographs, Databases

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Proceedings Article | 12 September 2012 Paper

Paper

Accompanying optical interferometry worldwide: the JMMC tools and services

G. Mella, S. Lafrasse, L. Bourgès, A. Chelli, G. Duvert, O. Chesneau, F. Malbet, I. Tallon-Bosc, M. Vannier, O. Absil, M. Benisty, J.-P. Berger, H. Beust, D. Bonneau, P. Cruzalebes, X. Delfosse, A. Domiciano de Souza, P. Kervella, J. Kluska, J.-B. Le Bouquin, S. Meimon, A. Merand, F. Millour, J.-L. Monin, D. Mourard, L. Mugnier, N. Nardetto, K. Perraut, M. Tallon

Proceedings Volume 8445, 84453F (2012) https://doi.org/10.1117/12.925729

KEYWORDS: Data modeling, Interferometry, Calibration, Optical interferometry, Software development, Interfaces, Visibility, Interferometers, Java, Databases

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Proceedings Article | 12 September 2012 Paper

Paper

Study of exoplanets host stars with VEGA/CHARA

R. Ligi, D. Mourard, Anne-Marie Lagrange, Karine Perraut, I. Tallon-Bosc

Proceedings Volume 8445, 84450J (2012) https://doi.org/10.1117/12.925503

KEYWORDS: Stars, Exoplanets, Planets, Visibility, Interferometry, Temperature metrology, Electroluminescent displays, Infrared radiation, Spatial frequencies, Spatial resolution

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Proceedings Article | 28 July 2010 Paper

Paper

Fractal iterative method for fast atmospheric tomography on extremely large telescopes

Michel Tallon, Isabelle Tallon-Bosc, Clémentine Béchet, Fabien Momey, Marie Fradin, Éric Thiébaut

Proceedings Volume 7736, 77360X (2010) https://doi.org/10.1117/12.858042

KEYWORDS: Tomography, Wavefronts, Adaptive optics, Wavefront sensors, Turbulence, Stars, Fractal analysis, Iterative methods, Error analysis, Large telescopes

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Proceedings Article | 22 July 2010 Paper

Paper

Performances and first science results with the VEGA/CHARA visible instrument

D. Mourard, M. Tallon, Ph. Bério, D. Bonneau, O. Chesneau, J. Clausse, O. Delaa, N. Nardetto, K. Perraut, A. Spang, Ph. Stee, I. Tallon-Bosc, H. McAlister, T. ten Brummelaar, J. Sturmann, L. Sturmann, N. Turner, C. Farrington, P. Goldfinger

Proceedings Volume 7734, 77340D (2010) https://doi.org/10.1117/12.856100

KEYWORDS: Stars, Visibility, Interferometry, Spectral resolution, Spectrographs, Telescopes, Visible radiation, Calibration, Signal to noise ratio, Spatial resolution

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Proceedings Article | 28 July 2008 Paper

Paper

VEGA: a new visible spectrograph and polarimeter on the CHARA Array

D. Mourard, K. Perraut, D. Bonneau, J. M. Clausse, Ph. Stee, I. Tallon-Bosc, P. Kervella, Y. Hughes, A. Marcotto, A. Blazit, O. Chesneau, A. Domiciano de Souza, R. Foy, F. Hénault, D. Mattei, G. Merlin, A. Roussel, M. Tallon, E. Thiebaut, H. McAlister, T. ten Brummelaar, J. Sturmann, L. Sturmann, N. Turner, C. Farrington, P. J. Goldfinger

Proceedings Volume 7013, 701323 (2008) https://doi.org/10.1117/12.787505

KEYWORDS: Spectrographs, Visible radiation, Spectral resolution, Sensors, Polarimetry, Stars, Signal to noise ratio, Interferometry, Mirrors, Telescopes

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Proceedings Article | 28 July 2008 Paper

Paper

LITpro: a model fitting software for optical interferometry

I. Tallon-Bosc, M. Tallon, E. Thiébaut, C. Béchet, G. Mella, S. Lafrasse, O. Chesneau, A. Domiciano de Souza, G. Duvert, D. Mourard, R. Petrov, M. Vannier

Proceedings Volume 7013, 70131J (2008) https://doi.org/10.1117/12.788871

KEYWORDS: Data modeling, Interferometry, Visibility, Optical interferometry, Java, Surface conduction electron emitter displays, Photometry, Fourier transforms, Stars, Human-machine interfaces

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Proceedings Article | 7 July 2008 Paper

Paper

Shack-Hartmann wavefront reconstruction with elongated sodium laser guide stars: improvements with priors and noise correlations

Michel Tallon, Isabelle Tallon-Bosc, Clémentine Béchet, Eric Thiébaut

Proceedings Volume 7015, 70151N (2008) https://doi.org/10.1117/12.788902

KEYWORDS: Sodium, Wavefront sensors, Wavefronts, Wavefront reconstruction, Telescopes, Adaptive optics, Laser guide stars, Reconstruction algorithms, Large telescopes, Data modeling

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Proceedings Article | 29 June 2006 Paper

Paper

VEGA: a visible spectrograph and polarimeter for CHARA

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

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 | 23 June 2006 Paper

Paper

Recent progress and future prospects of the GI2T interferometer

D. Mourard, A. Blazit, D. Bonneau, J. Chevassut, J. Clausse, J. Le Bouquin, J. Maire, G. Merlin, K. Rousselet-Perraut, J. Borgnino, N. Nardetto, F. Patru, X. Rondeau, P. Stee, I. Tallon-Bosc, E. Thiébaut, F. Vakili, A. Ziad

Proceedings Volume 6268, 626807 (2006) https://doi.org/10.1117/12.669899

KEYWORDS: Interferometers, Polarization, Visibility, Polarimetry, Spectrographs, Cameras, Photon counting, Sensors, Interferometry, Spatial resolution

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Proceedings Article | 21 February 2003 Paper

Paper

System analysis of the AMBER instrument on VLTI

Fabien Malbet, Romain Petrov, Isabelle Tallon-Bosc, Karl-Heinz Hofmann, Denis Mourard, Thierry Forveille, Frederic Cassaing, Francois Reynaud, Michel Tallon, Pierre Mege, Karine Rousselet-Perraut

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.458832

KEYWORDS: Calibration, Signal to noise ratio, Interferometry, Atmospheric optics, K band, Spectral resolution, Wavefronts, Refraction, Modulation, Optical fibers

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Proceedings Article | 7 July 2000 Paper

Paper

SPID: a high spectral resolution diffraction-limited camera

Michel Tallon, Andre Baranne, Alain Blazit, Francoise-Claude Foy, Renaud Foy, Isabelle Tallon-Bosc, Eric Thiebaut

Proceedings Volume 4007, (2000) https://doi.org/10.1117/12.390390

KEYWORDS: Spectral resolution, Telescopes, Adaptive optics, Cameras, Signal to noise ratio, Stars, Sensors, Diffraction, Wavefront sensors, Spatial resolution

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Proceedings Article | 5 July 2000 Paper

Paper

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

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

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 | 24 July 1998 Paper

Paper

GI2T/REGAIN interferometer

Denis Mourard, Nathalie Thureau, Pierre Antonelli, Philippe Berio, Jean-Claude Blanc, Alain Blazit, Jean-Lucien Boit, Daniel Bonneau, Olivier Chesneau, Jean Clausse, J. Corneloup, Robert Dalla, Michel Dugue, Andre Glentzlin, L. Hill, Antoine Labeyrie, Joel Le Merrer, Serge Menardi, Guy Merlin, Gabriel Moreaux, Romain Petrov, Sylvestre Rebattu, Karine Rousselet-Perraut, Philippe Stee, Isabelle Tallon-Bosc, J. Trastour, Farrokh Vakili, Christophe Verinaud, Clothaire Voet, G. Waultier

Proceedings Volume 3350, (1998) https://doi.org/10.1117/12.317125

KEYWORDS: Telescopes, Spectrographs, Visible radiation, Interferometry, Cameras, Interferometers, Mirrors, Control systems, Infrared telescopes, Image filtering

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Proceedings Article | 9 June 1994 Paper

Paper

REGAIN: a new optical beam combiner for the G12T

Denis Mourard, Alain Blazit, Daniel Bonneau, D. Merlin, Isabelle Tallon-Bosc, Farrokh Vakili, Serge Menardi, Sylvestre Rebattu, L. Hill, Karine Perraut-Rousselet, Jean-Lucien Boit, Joel Le Merrer, G. Lasselin-Waultier, Michel Saisse, Dominque Pouliquen, M. Joubert

Proceedings Volume 2200, (1994) https://doi.org/10.1117/12.177277

KEYWORDS: Telescopes, Stars, Sensors, Space telescopes, Spectrographs, Visibility, Cameras, Mirrors, Adaptive optics, Visible radiation

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Proceedings Article | 9 June 1994 Paper

Paper

Spectrally resolved interferometry with the Grand Interferometre a 2 Telescopes: results and prospects

Farrokh Vakili, Daniel Bonneau, Peter Lawson, Guy Merlin, Denis Mourard, Philippe Stee, Fabrice Vallee, Isabelle Tallon-Bosc

Proceedings Volume 2200, (1994) https://doi.org/10.1117/12.177242

KEYWORDS: Stars, Visibility, Telescopes, Calibration, Interferometry, Sensors, Interferometers, Beryllium, Speckle, Spectroscopy

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Showing 5 of 28 publications

Conference Committee Involvement (6)

Optical and Infrared Interferometry and Imaging VII

14 December 2020 | Online Only, California, United States

Optical and Infrared Interferometry and Imaging VII

14 December 2020 | Online Only, California, United States

Optical and Infrared Interferometry and Imaging VI

11 June 2018 | Austin, Texas, United States

Optical and Infrared Interferometry and Imaging V Posters

27 June 2016 | Edinburgh, United Kingdom

Optical and Infrared Interferometry and Imaging V

27 June 2016 | Edinburgh, United Kingdom

Showing 5 of 6 Conference Committees

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