Mr. Michael J. Lefebvre Profile

Michael J. Lefebvre

Senior Adaptive Optics Specialist

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Author

Publications (9)

Proceedings Article | 13 December 2020 Poster + Paper

Adaptive secondary mirrors upgrades at the Large Binocular Telescope

Guido Brusa, Xianyu Zhang, Michael Lefebvre, Julian Christou, Albert Conrad, Roberto Biasi, Mario Andrighettoni, Martin Glück, Moritz Straub, Jörg-Uwe Pott

Proceedings Volume 11448, 114485T (2020) https://doi.org/10.1117/12.2563092

KEYWORDS: Telescopes, Mirrors, Interferometers, Control systems, Electronics, Adaptive optics, Cameras, New and emerging technologies, Reliability, Signal attenuation

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Proceedings Article | 10 July 2018 Paper

Airplanes and satellites: how to keep LGS operations efficient and safe at the Large Binocular Telescope Observatory

Gustavo Rahmer, Michael Lefebvre, Julian Christou

Proceedings Volume 10704, 107042P (2018) https://doi.org/10.1117/12.2314105

KEYWORDS: Telescopes, Satellites, Observatories, Antennas, Space telescopes, Signal detection, Mirrors, Laser safety, Laser beam propagation, Adaptive optics

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Proceedings Article | 27 July 2016 Paper

First on-sky results with ARGOS at LBT

G. Orban de Xivry, S. Rabien, L. Busoni, W. Gaessler, M. Bonaglia, J. Borelli, M. Deysenroth, S. Esposito, H. Gemperlein, M. Kulas, M. Lefebvre, T. Mazzoni, D. Peter, A. Puglisi, W. Raab, G. Rahmer, A. Sivitilli, J. Storm, J. Ziegleder

Proceedings Volume 9909, 990936 (2016) https://doi.org/10.1117/12.2240094

KEYWORDS: Adaptive optics, Telescopes, Astronomical imaging, Point spread functions, Mirrors, Stars, Sensors, Wavefront sensors, Electroluminescent displays, Space telescopes

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Proceedings Article | 27 July 2016 Paper

Adaptive optics operations at the Large Binocular Telescope Observatory

Douglas Miller, Gregory Taylor, Julian Christou, Xianyu Zhang, Guido Brusa Zappellini, Gustavo Rahmer, Michael Lefebvre, Alfio Puglisi, Enrico Pinna, Simone Esposito

Proceedings Volume 9909, 99092G (2016) https://doi.org/10.1117/12.2234324

KEYWORDS: Adaptive optics, Telescopes, Observatories, Stars, Mirrors, Actuators, Monochromatic aberrations, Calibration, Sensors, Active optics

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Proceedings Article | 26 July 2016 Paper

Engineering aspects of the Large Binocular Telescope Observatory adaptive optics systems

Guido Brusa, Dave Ashby, Julian Christou, Jonathan Kern, Michael Lefebvre, Tom McMahon, Douglas Miller, Gustavo Rahmer, Richard Sosa, Gregory Taylor, Conrad Vogel, Xianyu Zhang

Proceedings Volume 9909, 990903 (2016) https://doi.org/10.1117/12.2234733

KEYWORDS: Adaptive optics, Telescopes, Sensors, Mirrors, Calibration, Control systems, Actuators, Coating, Observatories, Interferometers

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Proceedings Article | 15 July 2016 Paper

Aircraft avoidance for laser propagation at the Large Binocular Telescope Observatory: life under a busy airspace

Gustavo Rahmer, Michael Lefebvre, Julian Christou

Proceedings Volume 9910, 99102G (2016) https://doi.org/10.1117/12.2231909

KEYWORDS: Transmission electron microscopy, Spherical lenses, Visibility, Wave propagation, Interferometry, Antennas, Physics, Sensors, Beam propagation method, Polarization

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Proceedings Article | 6 August 2014 Paper

Early laser operations at the Large Binocular Telescope Observatory

Gustavo Rahmer, Michael Lefebvre, Julian Christou, Walfried Raab, Sebastian Rabien, Julian Ziegleder, José Borelli, Wolfgang Gässler

Proceedings Volume 9149, 91492A (2014) https://doi.org/10.1117/12.2056774

KEYWORDS: Telescopes, Laser safety, Space telescopes, Observatories, Laser systems engineering, Safety, Space operations, Satellites, Mirrors, Visualization

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Proceedings Article | 4 August 2014 Paper

Living with adaptive secondary mirrors 365/7/24

Julian Christou, Guido Brusa , Juan Carlos Guerra , Michael Lefebvre, Douglas Miller, Gustavo Rahmer, Richard Sosa, Michael Wagner

Proceedings Volume 9148, 91480F (2014) https://doi.org/10.1117/12.2056361

KEYWORDS: Actuators, Telescopes, Adaptive optics, Mirrors, Contamination, Digital signal processing, Wavefront sensors, Electronics, Wavefronts, Sensors

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Proceedings Article | 21 July 2014 Paper

Status of the ARGOS project

Sebastian Rabien, Lothar Barl, Udo Beckmann, Marco Bonaglia, José Luis Borelli, Joar Brynnel, Peter Buschkamp, Lorenzo Busoni, Julian Christou, Claus Connot, Richard Davies, Matthias Deysenroth, Simone Esposito, Wolfgang Gässler, Hans Gemperlein, Michael Hart, Martin Kulas, Michael Lefebvre, Michael Lehmitz, Tommaso Mazzoni, Edmund Nussbaum, Gilles Orban de Xivry, Diethard Peter, Andreas Quirrenbach, Walfried Raab, Gustavo Rahmer, Jesper Storm, Julian Ziegleder

Proceedings Volume 9148, 91481B (2014) https://doi.org/10.1117/12.2055932

KEYWORDS: Wavefront sensors, Sensors, Telescopes, Laser guide stars, Mirrors, Adaptive optics, Calibration, Stars, Laser systems engineering, Imaging spectroscopy

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Showing 5 of 9 publications

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