Dr. Felix Widmann Profile

Dr. Felix Widmann

at MPE

SPIE Involvement:

Conference Program Committee | Author

Publications (17)

Proceedings Article | 28 August 2024 Presentation + Paper

Presentation + Paper

GRAVITY+ Wide: towards hundreds of z ∼ 2 AGN, larger throughput and improved vibrational control

Maximilian Fabricius, Julien Woillez, Roberto Abuter, Guillaume Bourdarot, Pierre Bourget, Wolfgang Brandner, Amit Brara, Denis Defrère, Antonia Drescher, Frank Eisenhauer, Helmut Feuchtgruber, Robert Frahm, Reinhard Genzel, Stefan Gillessen, Frédéric Gonté, Vishaal Gopinath, Jonas Graf, Michael Hartl, Frank Haußmann, Sebastian Hönig, Matthew Horrobin, Paulo J. Garcia, Tilo Jilg, Laura Kreidberg, Romain Laugier, Jean-Baptiste Le Bouquin, Mari Lena Bolzer, Dieter Lutz, Nikhil More, Thomas Ott, Hakan Özdemir, Thibaut Paumard, Karine Perraut, Guy Perrin, Christian Rau, Christian Rehm, Jonas Sauter, Nicolas Schuhler, Daniel Schuppe, Jinyi Shangguan, Taro Shimizu, Christian Straubmeier, Matthias Subroweit, Sinem Uysal, Patrick Wessely, Felix Widmann, Ekkehard Wieprecht, Lukas Wimmer, Senol Yazici, Hagen Prowatke, Ralf Böttcher

Proceedings Volume 13095, 130950B (2024) https://doi.org/10.1117/12.3019984

KEYWORDS: Astronomical interferometers, Control systems, Beam path, Mirrors, Vibration, Vibration control, Telescopes, Optical benches, Optical path differences

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Proceedings Article | 28 August 2024 Poster + Paper

Poster + Paper

GRAVITY+ adaptive optics (GPAO) tests in Europe

Florentin Millour, Guillaume Bourdarot, Jean-Baptiste Le Bouquin, Anthony Berdeu, Mathis Houllé, Philippe Berio, Thibaut Paumard, Denis Defrère, Paulo Garcia, Ferreol Soulez, Sebastian Hoenig, Fatmé Allouche, Martin Bachbucher, Christophe Bailet, Cyrille Blanchard, Olivier Boebion, Henri Bonnet, Amit Brara, Marcel Carbillet, Stephan Czempiel, Alain Delboulbé, Roderick Dembet, Clémence Edouard, Frank Eisenhauer, Helmut Feuchtgruber, Christoph Furchstsam, Stefan Gillessen, Armin Goldbrunner, Tiago Gomes, Carole Gouvvret, Sylvain Guieu, Mike Hartl, Johannes Hartwig, Frank Haussmann, David Huber, Ihsan Ibn Taïeb, Johann Kolb, Stéphane Lagarde, Olivier Lai, James Leftley, Dieter Lutz, Yves Magnard, Aurélie Marcotto, Hugo Nowacki, Sylvain Oberti, Thomas Ott, Christian Rau, Sylvie Robbe-Dubois, Jules Scigliuto, Franz Soller, Pavel Shchekaturov, Daniel Schuppe, Eric Stadler, Sinem Uysal, Felix Widmann, Ekherhard Wieprecht, Julien Woillez, Şenol Yazici

Proceedings Volume 13095, 1309520 (2024) https://doi.org/10.1117/12.3020269

KEYWORDS: Matrices, Adaptive optics, Wavefront sensors, Calibration, Cameras, Point spread functions, Telescopes, Optical testing, Laser guide stars, Real-time computing

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Proceedings Article | 28 August 2024 Poster + Paper

Poster + Paper

Opto-mechanical design of GRAVITY+ wavefront sensor

Nikhil More, Reinhard Genzel, Frank Eisenhauer, Dieter Lutz, Stefan Gillessen, Josef Schubert, Michael Hartl, Frank Haussmann, Christian Rehm, Harald Weisz, Şenol Yazici, Helmut Feuchtgruber, Christian Rau, Sinem Uysal, Guillaume Bourdarot, Ekkehard Wieprecht, Thomas Ott, Maximilian Fabricius, Felix Widmann, Antonia Drescher, Jingyi Shangguan, Taro Shimizu, Frederic Gonté, Julien Woillez, Nicolas Schuhler, Pierre Bourget, Sylvain Oberti, Jean-Baptiste Le Bouquin, Thibaut Paumard, Florentine Millour, Christian Straubmeier, Laura Kreidberg, Paulo Garcia, Tiago Gomes, Sebastian Hoenig, Denis Defrére

Proceedings Volume 13095, 130952E (2024) https://doi.org/10.1117/12.3018880

KEYWORDS: Wavefront sensors, Design, Adaptive optics, Sensors, Beam splitters, Interfaces, Tolerancing, Telescopes

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Proceedings Article | 28 August 2024 Presentation

Presentation

GRAVITY+ wavefront sensors: high-contrast, laser guide star, adaptive optics systems for the VLTI

Guillaume Bourdarot, Frank Eisenhauer, Şenol Yazıcı, Helmut Feuchtgruber, Jean-Baptiste Le Bouquin, Michael Hartl, Christian Rau, Jonas Graf, Nikhil More, Ekkehard Wieprecht, Frank Haussmann, Felix Widmann, Dieter Lutz, Reinhard Genzel, Frederic Gonté, Sylvain Oberti, Johann Kolb, Julien Woillez, Henri Bonnet, Daniel Schuppe, Amit Brara, Johannes Hartwig, Armin Goldbrunner, Christoph Furchtsam, Franz Soller, Stefan Czempiel, Johann Eibl, David Huber, Sinem Uysal, Irmgard Treffler, Hakan Özdemir, Vishaal Gopinath, Pierre Bourget, Anthony Berdeu, Stefan Gillessen, Thomas Ott, Philippe Berio, Olivier Boebion, Florentin Millour, Roderick Dembet, Clémence Edouard, Tiago Gomes, Taro Shimizu, Antonia Drescher, Maximilian Fabricius, Jinyi Shangguan, Stéphane Lagarde, Sylvie Robbe-Dubois, Fatmé Allouche, Hugo Nowacki, Denis Defrère, Paulo J. Garcia, Sebastian Hoenig, Laura Kreidberg, Thibaut Paumard, Christian Straubmeier

Proceedings Volume 13095, 130950N (2024) https://doi.org/10.1117/12.3018388

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Proceedings Article | 28 August 2024 Presentation

Presentation

New GRAVITY+ observing modes to push for fainter and more precise observations

Antonia Drescher, Michaela Benthaus, Guillaume Bourdarot, Wolfgang Brandner, Denis Defrère, Frank Eisenhauer, Maximilian Fabricius, Helmut Feuchtgruber, Paulo Garcia, Reinhard Genzel, Stefan Gillessen, Frederic Gonte, Jonas Graf, Michael Hartl, Frank Haussmann, Sebastian Hönig, Laura Kreidberg, Jean-Baptiste Le Bouquin, Dieter Lutz, Felix Mang, Florentin Millour, Nikki More, Thomas Ott, Thibaut Paumard, Karine Perraut, Guy Perrin, Christian Rau, Jingyi Shangguan, Taro Shimizu, Christian Straubmeier, Matthias Subroweit, Sinem Uysal, Sebastiano von Fellenberg, Felix Widmann, Ekkehard Wieprecht, Julien Woillez, Senol Yazici

Proceedings Volume 13095, 130950O (2024) https://doi.org/10.1117/12.3018972

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Proceedings Article | 28 August 2024 Presentation

Presentation

Image reconstruction in optical/near-infrared interferometry with Information Field Theory

Felix Mang, Guillaume Bourdarot, Wolfgang Brandner, Antonia Drescher, Frank Eisenhauer, Torsten Enßlin, Helmut Feuchtgruber, Gert Finger, Natascha Förster Schreiber, Paulo J. Garcia, Reinhard Genzel, Stefan Gillessen, Michael Hartl, Jakob Knollmüller, Jean-Baptiste Le Bouquin, Dieter Lutz, Nikhil More, Thomas Ott, Thibaut Paumard, Karine Perraut, Guy Perrin, Sebastian Rabien, Diogo Ribeiro, Matteo Sadun Bordoni, Jinyi Shangguan, Taro Shimizu, Julia Stadler, Christian Straubmeier, Eckhard Sturm, Linda Tacconi, Sebastiano von Fellenberg, Felix Widmann, Ekkehard Wieprecht, Julien Woillez

Proceedings Volume 13095, 1309518 (2024) https://doi.org/10.1117/12.3020088

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Proceedings Article | 29 August 2022 Presentation

Presentation

GRAVITY+ Astrometry: pushing micro-arcsecond precision with long baseline interferometry

Guillaume Bourdarot, Felix Widmann, Frank Eisenhauer, Sebastiano von Fellenberg, Stefan Gillessen, GRAVITY+ Collaboration

Proceedings Volume 12183, 121830S (2022) https://doi.org/10.1117/12.2628785

KEYWORDS: Interferometry, Polarization, Metrology, Infrared radiation, Fiber couplers, Exoplanets

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

GRAVITY+ Wide: towards hundreds of z ~ 2 AGN

Antonia Drescher, Maximilian Fabricius, Taro Shimizu, Julien Woillez, Pierre Bourget, Felix Widmann, Jinyi Shangguan, Christian Straubmeier, Matthew Horrobin, Nicolas Schuhler, Frank Eisenhauer, Frederic Gonté, Stefan Gillessen, Thomas Ott, Guy Perrin, Thibaut Paumard, Wolfgang Brandner, Laura Kreidberg, Karine Perraut, Jean-Baptiste Le Bouquin, Paulo Garcia, Sebastian Hönig, Denis Defrère, Guillaume Bourdarot, Helmut Feuchtgruber, Reinhard Genzel, Michael Hartl, Frank Haussmann, Dieter Lutz, Nikhil More, Christian Rau, Jonas Sauter, Sinem Uysal, Patrick Wessely, Ekkehard Wieprecht, Lukas Wimmer, Senol Yazici

Proceedings Volume 12183, 121830T (2022) https://doi.org/10.1117/12.2628921

KEYWORDS: Fourier transforms, Visibility, Mirrors, Stars, Atmospheric turbulence, Atmospheric modeling, Adaptive optics, Relays, Turbulence

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

GRAVITY faint: reducing noise sources in GRAVITY+ with a fast metrology attenuation system

Felix Widmann, Stefan Gillessen, Thomas Ott, Taro Shimizu, Frank Eisenhauer, Maximilian Fabricius, Julien Woillez, Frédéric Gonté, Matthew Horrobin, Jingyi Shangguan, Senol Yazici, Guy Perrin, Thibaut Paumard, Wolfgang Brandner, Laura Kreidberg, Christian Straubmeier, Karin Perraut, Jean-Baptiste Le Bouquin, Paulo Garcia, Sebastian Hönig, Denis Defrère, Guillaume Bourdarot, Antonia Drescher, Helmut Feuchtgruber, Reinhard Genzel, Michael Hartl, Dieter Lutz, Nikhil More, Christian Rau, Sinem Uysal, Ekkehard Wieprecht

Proceedings Volume 12183, 121830U (2022) https://doi.org/10.1117/12.2628813

KEYWORDS: Astronomical interferometers, Near infrared, Metrology, Laser metrology, Sensors, Signal to noise ratio, Backscatter, Telescopes, Fourier transforms, Stars, Diodes, Fiber couplers

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Proceedings Article | 15 January 2021 Poster + Paper

Poster + Paper

GRAVITY upgrade with high-performance grisms with factor >2 enhanced throughput

Senol Yazici, Takashi Sukegawa, Martin Mayer, Frank Eisenhauer, Yukinobu Okura, Karine Perraut, Laurent Jocou, Stefan Gillessen, Frank Haussmann, Alexander Buron, David Huber, Lothar Barl, Kateryna Kravchenko, Oliver Pfuhl, Sylvestre Lacour, Vincent Lapeyrere, Erich Wiezorrek, Thomas Ott, Thibaut Paumard, Jinyi Shangguan, Feng Gao, Christian Straubmeier, Patricia Guajardo, Miguel Riquelme, Laurent Pallanca, Reinhard Genzel, Tim de Zeeuw, Michael Bauböck, Maryam Habibi, Christian Rau, Alejandra Jimenez Rosales, Julia Stadler, Odele Straub, Eckhard Sturm, Sebastiano von Fellenberg, Felix Widmann, Ekkehard Wieprecht, Andreas Eckart, Guy Perrin, Antonio Amorim, Paolo Garcia, Wolfgang Brandner

Proceedings Volume 11446, 114461X (2021) https://doi.org/10.1117/12.2561387

KEYWORDS: Spectroscopy, Interferometry, Spectral resolution, Germanium, Phase interferometry, Image resolution, Zinc, Refractive index, Antireflective coatings, Optical properties

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Proceedings Article | 16 December 2020 Presentation + Paper

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

Presentation

Static phase aberrations in near-IR interferometry and GRAVITY's determination of the galactic center distanceStatic phase aberrations in near-IR interferometry and GRAVITY's determination of the galactic center distance

Julia Stadler, Guy Perin, Wolfgang Brandner, Christian Straubmeier, Karine Rousselet-Perraut, António Amorim, Paulo Garcia, Frank Eisenhauer, Michael Bauböck, Feng Gao, Reinhard Genzel, Stefan Gillessen, Alejandra Jimenez-Rosales, Thomas Ott, Jinyi Shangguan, Odèle Straub, Eckhard Sturm, Sebastiano von Fellenberg, Felix Widmann, Oliver Pfuhl, Sylvestre Lacour, Julien Woillez, Mathias Nowak

Proceedings Volume 11446, 114460M (2020) https://doi.org/10.1117/12.2576225

KEYWORDS: Interferometry, Visibility, Phase measurement, Calibration, Zernike polynomials, Superposition, Phase interferometry, Integrated optics, Control systems

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Testing P-REx on VLTI data

Saavidra Perera, Jörg-Uwe Pott, Jullien Woillez, Martin Kulas, Wolfgang Brandner, Sylvestre Lacour, Felix Widmann, Steve Ertel, Amali Vaz

Proceedings Volume 11446, 114460J (2020) https://doi.org/10.1117/12.2560105

KEYWORDS: Interferometers, Adaptive optics, Telescopes, Atmospheric optics, Interferometry, Atmospheric turbulence, Sensors, Optical aberrations, Wind measurement, Velocity measurements

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Proceedings Article | 13 December 2020 Presentation

Presentation

First four telescopes large-separation off-axis fringe-tracking interferometry with GRAVITY at the VLTI

Feng Gao, Frank Eisenhauer, Julien Woillez, Pierre Bourget, Bruno Chazelas, Roderick Dembet, Frédéric Gonté, Jürgen Ott, Nicolas Schuhler, Gérard Zins, Frank Haussmann, Michael Hartl, Stefan Gillessen, Reinhard Genzel, Guy Perrin, Wolfgang Brandner, Thibaut Paumard, Karine Perraut, Paulo J. Garcia, Christian Straubmeier, António Amorim, Thomas Ott, Felix Widmann, Jinyi Shangguan, Odèle Straub, Sebastiano von Fellenberg, Eckhard Sturm, Oliver Pfuhl, Michi Bauboeck, Alejandra Jimenez-Rosales, Matthew Horrobin, Julia Stadler, Dieter Lutz, Taro Shimizu, Antonia Drescher, Mari Lena Bolzer

Proceedings Volume 11446, 114461I (2020) https://doi.org/10.1117/12.2561408

KEYWORDS: Telescopes, Interferometry, Interferometers, Atmospheric turbulence, Optical interferometry, Large telescopes, Stars

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Proceedings Article | 13 December 2020 Presentation

Presentation

Polarization analysis of GRAVITY and the VLTI

Felix Widmann, Frank Eisenhauer, Oliver Pfuhl, Nicolas Schuhler, Xavier Haubois, António Amorim, Michi Bauböck, Wolfgang Brandner, Jason Dexter, Feng Gao, Paulo J. Garcia, Reinhard Genzel, Stefan Gillessen, Alejandra Jimenez-Rosales, Sylvestre Lacour, Thomas Ott, Karine Perraut, Guy Perrin, Jinyi Shangguan, Odèle Straub, Christian Straubmeier, Eckhard Sturm, Sebastiano von Fellenberg

Proceedings Volume 11446, 114460S (2020) https://doi.org/10.1117/12.2559311

KEYWORDS: Polarization, Data modeling, Polarization analysis, Calibration, Signal attenuation, Birefringence, Polarimetry, Telescopes, Mirrors, Device simulation

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Proceedings Article | 9 July 2018 Open Access

Open Access

Paper

Improving GRAVITY towards observations of faint targets

Felix Widmann, Frank Eisenhauer, Guy Perrin, Wolfgang Brandner, Christian Straubmeier, Karin Perraut, Antonio Amorim, Markus Schöller, Feng Gao, Reinhard Genzel, Stefan Gillessen, Martina Karl, Sylvestre Lacour, Magdalena Lippa, Thomas Ott, Oliver Pfuhl, Philipp Plewa, Idel Waisberg

Proceedings Volume 10701, 107010K (2018) https://doi.org/10.1117/12.2312118

KEYWORDS: Signal to noise ratio, Calibration, Data modeling, Systems modeling, Telescopes, Atmospheric modeling, Interferometers, Interferometry

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Proceedings Article | 8 August 2016 Paper

Paper

P-REx: the piston drift reconstruction experiment

Jörg-Uwe Pott, Qiang Fu, Felix Widmann, Diethard Peter

Proceedings Volume 9907, 99073E (2016) https://doi.org/10.1117/12.2233139

KEYWORDS: Interferometry, Atmospheric optics, Telescopes, Wavefront sensors, Adaptive optics, Atmospheric turbulence, Turbulence, Wavefronts, Atmospheric modeling, Computer simulations

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Showing 5 of 17 publications

Conference Committee Involvement (1)

Optical and Infrared Interferometry and Imaging IX

17 June 2024 | Yokohama, Japan

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