Dr. Nicola Di Lieto Profile

Dr. Nicola Di Lieto

at European Southern Observatory

SPIE Involvement:

Author

Publications (32)

Proceedings Article | 23 August 2024 Presentation + Paper

Presentation + Paper

Logistics and integration of series-production items for the ELT: a new challenge at ESO

Sebastien Egner, Philippe Gitton, Lluis Cavaller Marques, Carina Celedon, Andreia Centeio, Emanuela Ciattaglia, Martin Dimmler, Nicola Di Lieto, Michael Esselborn, Andreas Förster, Juan-Carlos González-Herrera, Ronald Guzman, Robert Hamilton, Aglae Kellerer, Herve Kurlandczyk, Yannick Lammen, Juan Marrero Hernández, Tobias Müller, Ricardo Parra, Lorenzo Pettazzi, Dan Pilbauer, Andreas Reinacher, Jürgen Riesel, Dario Serrano

Proceedings Volume 13099, 130990N (2024) https://doi.org/10.1117/12.3020054

KEYWORDS: Document management, Telescopes, Manufacturing, Glasses, Human-machine interfaces, Data acquisition, Visualization, Statistical analysis

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Proceedings Article | 30 August 2022 Poster + Paper

Poster + Paper

Final performance of the ESO’s ALICE and LISA wavefront sensing cameras

Enrico Marchetti, Paola Amico, Martin Brinkmann, Ralf Conzelmann, Diego Del Valle, Nicola Di Lieto, Max Engelhardt, Christoph Geimer, Josh Hopgood, Ignacio Molina, Eric Mueller, Jutta Quentin, Javier Reyes, Mathias Richerzhagen, Matthias Seidel, Joerg Stegmeier, Mirko Todorovic

Proceedings Volume 12185, 121857B (2022) https://doi.org/10.1117/12.2629931

KEYWORDS: Cameras, Sensors, Wavefront sensors, CCD image sensors, CMOS sensors

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Proceedings Article | 13 December 2020 Poster

Poster

Update on the adaptive optics camera developments at ESO

Mark Downing, Enrico Marchetti, Matteo Accardo, Paola Amico, Martin Brinkmann, Ralf Conzelmann, Diego Del Valle, Nicola Di Lieto, Max Engelhardt, Christoph Geimer, Josh Hopgood, Leander Mehrgan, Ignacio Molina, Eric Mueller, Jutta Quentin, Javier Reyes, Mathias Richerzhagen, Matthias Seidel, Joerg Stegmeier, Mirko Todorovic

Proceedings Volume 11448, 114483E (2020) https://doi.org/10.1117/12.2560931

KEYWORDS: Cameras, Sensors, Adaptive optics, Nanoimprint lithography, Telescopes, Quantum efficiency, Wavefront sensors, Imaging systems, Large telescopes, Deformable mirrors

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Proceedings Article | 13 December 2020 Poster + Presentation

Poster + Presentation

Ethernet to multi-CAN gateway for VLT MOONS instrument control

Pablo Gutierrez, David Atkinson, Steven Beard, Nicola Di Lieto

Proceedings Volume 11452, 114522A (2020) https://doi.org/10.1117/12.2557215

KEYWORDS: Microcontrollers, Error analysis, Software development, Control systems, Telecommunications, Transceivers, Large telescopes, Actuators, Aerospace engineering, Information and communication technologies

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

Meter-class mirror figure metrology using a 24-channel fiber interferometer

Ronald Holzlöhner, Samuel Lévêque, Nicola Di Lieto, Juan-Antonio Marrero Hernández, Andrew Rakich

Proceedings Volume 10706, 107061F (2018) https://doi.org/10.1117/12.2312642

KEYWORDS: Mirrors, Collimators, Metrology, Interferometers, Prototyping, Interferometry, Distance measurement, Telescopes, Finite element methods, Monochromatic aberrations

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Proceedings Article | 8 July 2018 Paper

Paper

A fibre scrambling unit for the laser frequency comb of ESPRESSO

Christoph Frank, Florian Kerber, Gerardo Avila, Nicola Di Lieto, Gaspare Lo Curto, Antonio Manescau

Proceedings Volume 10702, 107026P (2018) https://doi.org/10.1117/12.2313484

KEYWORDS: Calibration, Spectrographs, Frequency combs, Observatories, Computer aided design, Exoplanets, Astronomy, Lamps, Light sources

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Proceedings Article | 4 August 2016 Paper

Paper

Control bandwidth improvements in GRAVITY fringe tracker by switching to a synchronous real time computer architecture

Roberto Abuter, Roderick Dembet, Sylvestre Lacour, Nicola di Lieto, Julien Woillez, Frank Eisenhauer, Pierre Fedou, Than Phan Duc

Proceedings Volume 9907, 990721 (2016) https://doi.org/10.1117/12.2232019

KEYWORDS: Computer architecture, Switching, Computing systems, Computing systems, Sensors, Control systems, Reflectivity, Computer architecture, Actuators, Standards development, Real-time computing, Solar concentrators

Read Abstract +

The new VLTI (Very Large Telescope Interferometer) 1 instrument GRAVITY^{5, 22, 23} is equipped with a fringe tracker¹⁶ able to stabilize the K-band fringes on six baselines at the same time. It has been designed to achieve a performance for average seeing conditions of a residual OPD (Optical Path Difference) lower than ~300 nm with objects brighter than K = 10. The control loop implementing the tracking is composed of a four stage real time computer system compromising: a sensor where the detector pixels are read in and the OPD and GD (Group Delay) are calculated; a controller receiving the computed sensor quantities and producing commands for the piezo actuators; a concentrator which combines both the OPD commands with the real time tip/tilt corrections offloading them to the piezo actuator; and finally a Kalman¹⁵ parameter estimator. This last stage is used to monitor current measurements over a window of few seconds and estimate new values for the main Kalman¹⁵ control loop parameters. The hardware and software implementation of this design runs asynchronously and communicates the four computers for data transfer via the Reflective Memory Network³. With the purpose of improving the performance of the GRAVITY^{5, 23} fringe tracking^{16, 22} control loop, a deviation from the standard asynchronous communication mechanism has been proposed and implemented. This new scheme operates the four independent real time computers involved in the tracking loop synchronously using the Reflective Memory Interrupts² as the coordination signal. This synchronous mechanism had the effect of reducing the total pure delay of the loop from ~3.5 [ms] to ~2.0 [ms] which then translates on a better stabilization of the fringes as the bandwidth of the system is substantially improved. This paper will explain in detail the real time architecture of the fringe tracker in both is synchronous and synchronous implementation. The achieved improvements on reducing the delay via this mechanism will be quantified.

Proceedings Article | 3 August 2016 Paper

Paper

VISIR upgrade overview: all's well that ends well

Florian Kerber, Hans Ulrich Käufl, Konrad Tristram, Daniel Asmus, Pedro Baksai, Nicola Di Lieto, Danuta Dobrzycka, Philippe Duhoux, Gert Finger, Christian Hummel, Derek Ives, Gerd Jakob, Lars Lundin, Dimitri Mawet, Leander Mehrgan, Eric Pantin, Miguel Riquelme, Joel Sanchez, Stefan Sandrock, Ralf Siebenmorgen, Jörg Stegmeier, Alain Smette, Julian Taylor, Mario van den Ancker, Guillermo Valdes, Lars Venema

Proceedings Volume 9908, 99080D (2016) https://doi.org/10.1117/12.2232441

KEYWORDS: Sensors, Mid-IR, Imaging spectroscopy, Detector arrays, Imaging systems, Image quality, Telescopes, Coronagraphy, Stars, Spectroscopy

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We present an overview of the VISIR instrument after its upgrade and return to science operations. VISIR is the midinfrared imager and spectrograph at ESO’s VLT. The project team is comprised of ESO staff and members of the original VISIR consortium: CEA Saclay and ASTRON. The project plan was based on input from the ESO user community with the goal of enhancing the scientific performance and efficiency of VISIR by a combination of measures: installation of improved hardware, optimization of instrument operations and software support. The cornerstone of the upgrade is the 1k by 1k Si:As AQUARIUS detector array manufactured by Raytheon. In addition, a new prism spectroscopic mode covers the whole N-band in a single observation. Finally, new scientific capabilities for high resolution and high-contrast imaging are offered by sub-aperture mask and coronagraphic modes. In order to make optimal use of favourable atmospheric conditions, a water vapour monitor has been deployed on Paranal, allowing for real-time decisions and the introduction of a user-defined constraint on water vapour. During the commissioning in 2012, it was found that the on-sky sensitivity of the AQUARIUS detector was significantly below expectations. Extensive testing of the detector arrays in the laboratory and on-sky enabled us to diagnose the cause for the shortcoming of the detector as excess low frequency noise. It is inherent to the design chosen for this detector and cannot be remedied by changing the detector set-up. Since this is a form of correlated noise, its impact can be limited by modulating the scene recorded by the detector. After careful analysis, we have implemented fast (up to 4 Hz) chopping with field stabilization using the secondary mirror of the VLT. During commissioning, the upgraded VISIR has been confirmed to be more sensitive than the old instrument, and in particular for low-resolution spectroscopy in the N-band, a gain of a factor 6 is realized in observing efficiency. After overcoming several additional technical problems, VISIR is back in Science Operations since April 2015. In addition an upgrade of the IT infrastructure related to VISIR has been conducted in order to support burst-mode operations. Science Verification of the new modes was performed in Feb 2016. The upgraded VISIR is a powerful instrument providing close to background limited performance for diffraction-limited observations at an 8-m telescope. It offers synergies with facilities such as ALMA, JWST, VLTI and SOFIA, while a wealth of targets is available from survey works like WISE. In addition, it will bring confirmation of the technical readiness and scientific value of several aspects for future mid-IR instrumentation at Extremely Large Telescopes. We also present several lessons learned during the project.

Proceedings Article | 27 July 2016 Paper

Paper

ESO adaptive optics NGSD/LGSD detector and camera controller for the E-ELT

Javier Reyes-Moreno, Mark Downing, Nicola Di Lieto

Proceedings Volume 9909, 990962 (2016) https://doi.org/10.1117/12.2232317

KEYWORDS: Adaptive optics, Sensors, Cameras, Imaging systems, Field programmable gate arrays, Electronics, Adaptive optics, Sensors, Clocks, Binary data, Prototyping, Signal detection

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Proceedings Article | 31 July 2014 Paper

Paper

VISIR upgrade overview and status

Florian Kerber, Hans-Ulrich Käufl, Pedro Baksai, Nicola Di Lieto, Danuta Dobrzycka, Philippe Duhoux, Gert Finger, Stephanie Heikamp, Derek Ives, Gerd Jakob, Lars Lundin, Dimitri Mawet, Leander Mehrgan, Yazan Momany, Vincent Moreau, Eric Pantin, Miguel Riquelme, Stefan Sandrock, Ralf Siebenmorgen, Alain Smette, Julian Taylor, Mario van den Ancker, Guillermo Valdes, Lars Venema, Ueli Weilenmann

Proceedings Volume 9147, 91470C (2014) https://doi.org/10.1117/12.2055172

KEYWORDS: Sensors, Spectroscopy, Mid-IR, Imaging systems, Imaging spectroscopy, Prisms, Coronagraphy, Quantum efficiency, Detector arrays, Stars

Read Abstract +

We present an overview of the VISIR upgrade project. VISIR is the mid-infrared imager and spectrograph at ESO’s VLT. The project team is comprised of ESO staff and members of the original VISIR consortium: CEA Saclay and ASTRON. The project plan is based on input from the ESO user community with the goal of enhancing the scientific performance and efficiency of VISIR by a combination of measures: installation of improved hardware, optimization of instrument operations and software support. The cornerstone of the upgrade is the 1k by 1k Si:As AQUARIUS detector array (Raytheon) which has been carefully characterized in ESO’s IR detector test facility (modified TIMMI 2 instrument). A prism spectroscopic mode will cover the N-band in a single observation. New scientific capabilities for high resolution and high-contrast imaging will be offered by sub-aperture mask (SAM) and phase-mask coronagraphic (4QPM/AGPM) modes. In order to make optimal use of favourable atmospheric conditions a water vapour monitor has been deployed on Paranal, allowing for real-time decisions and the introduction of a user-defined constraint on water vapour. During the commissioning in 2012 it was found that the on-sky sensitivity of the AQUARIUS detector was significantly below expectations and that VISIR was not ready to go back to science operations. Extensive testing of the detector arrays in the laboratory and on-sky enabled us to diagnose the cause for the shortcoming of the detector as excess low frequency noise (ELFN). It is inherent to the design chosen for this detector and can’t be remedied by changing the detector set-up. Since this is a form of correlated noise its impact can be limited by modulating the scene recorded by the detector. We have studied several mitigation options and found that faster chopping using the secondary mirror (M2) of the VLT offers the most promising way forward. Faster M2 chopping has been tested and is scheduled for implementation before the end of 2014 after which we plan to re-commission VISIR. In addition an upgrade of the IT infrastructure related to VISIR is planned in order to support burst-mode operations. The upgraded VISIR will be a powerful instrument providing close to background limited performance for diffraction-limited observations at an 8-m telescope. It will offer synergy with facilities such as ALMA, JWST, VLTI and SOFIA, while a wealth of targets is available from survey work (e.g. VISTA, WISE). In addition it will bring confirmation of the technical readiness and scientific value of several aspects of potential mid-IR instrumentation at Extremely Large Telescopes.

Proceedings Article | 24 July 2014 Paper

Paper

Improving the astrometric performance of VLTI-PRIMA

J. Woillez, R. Abuter, L. Andolfato, J.-P. Berger, H. Bonnet, F. Delplancke, F. Derie, N. Di Lieto, S. Guniat, A. Mérand, T. Phan Duc, C. Schmid, N. Schuhler, T. Henning, R. Launhardt, F. Pepe, Didier Queloz, A. Quirrenbach, S. Reffert, J. Sahlmann, D. Segransan

Proceedings Volume 9146, 91461H (2014) https://doi.org/10.1117/12.2054723

KEYWORDS: Metrology, Space telescopes, Telescopes, Stars, Sensors, Mirrors, Polarization, Retroreflectors, Signal to noise ratio, Exoplanets

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Proceedings Article | 22 July 2014 Paper

Paper

VLTI-UT vibrations effort and performances

Sébastien Poupar, Pierre Haguenauer, Jaime Alonso, Nicolas Schuhler, Juan-Pablo Henriquez, Jean-Philippe Berger, Pierre Bourget, Stephane Brillant, Roberto Castillo, Philippe Gitton, Frederic Gonte, Nicola Di Lieto, Jean-Louis Lizon, Antoine Merand, Julien Woillez

Proceedings Volume 9145, 91452M (2014) https://doi.org/10.1117/12.2055435

KEYWORDS: Telescopes, Mirrors, IRIS Consortium, Electronics, Interferometers, Infrared telescopes, Metrology, Sensors, Large telescopes, Infrared sensors

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Proceedings Article | 18 July 2014 Paper

Paper

PC based PLCs and ethernet based fieldbus: the new standard platform for future VLT instrument control

Mario Kiekebusch, Christian Lucuix, Toomas Erm, Gianluca Chiozzi, Michele Zamparelli, Lothar Kern, Roland Brast, Werther Pirani, Roland Reiss, Dan Popovic, Jens Knudstrup, Michel Duchateau, Stefan Sandrock, Nicola Di Lieto

Proceedings Volume 9152, 915207 (2014) https://doi.org/10.1117/12.2056648

KEYWORDS: Photonic integrated circuits, Standards development, Control systems, Motion controllers, Computer programming, Clocks, Interfaces, Commercial off the shelf technology, Astronomy, Computer programming languages

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Proceedings Article | 18 July 2014 Paper

Paper

MathWorks Simulink and C++ integration with the new VLT PLC-based standard development platform for instrument control systems

Mario Kiekebusch, Nicola Di Lieto, Stefan Sandrock, Dan Popovic, Gianluca Chiozzi

Proceedings Volume 9152, 91522B (2014) https://doi.org/10.1117/12.2056381

KEYWORDS: C++, Simulink, Photonic integrated circuits, Control systems, Telescopes, Prototyping, Mathematical modeling, Integration, Standards development, Software development

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Proceedings Article | 18 July 2014 Paper

Paper

Motion control solution for new PLC-based standard development platform for VLT instrument control systems

D. Popovic, R. Brast, N. Di Lieto, M. Kiekebusch, J. Knudstrup, C. Lucuix

Proceedings Volume 9152, 915209 (2014) https://doi.org/10.1117/12.2056469

KEYWORDS: Photonic integrated circuits, Motion controllers, Control systems, Optical proximity correction, Switches, Standards development, Picosecond phenomena, Software development, Computer programming, Human-machine interfaces

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Proceedings Article | 24 September 2012 Paper

Paper

Design and implementation of a general main axis controller for the ESO telescopes

Stefan Sandrock, Nicola Di Lieto, Lorenzo Pettazzi, Toomas Erm

Proceedings Volume 8451, 84510N (2012) https://doi.org/10.1117/12.926105

KEYWORDS: Telescopes, Control systems, Mathematical modeling, Prototyping, Model-based design, Optical instrument design, Device simulation, Electronics, Computer programming, Computer simulations

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Proceedings Article | 12 September 2012 Paper

Paper

VLTI fringe tracking real time computer architecture

Roberto Abuter, Nicola di Lieto, Christian Schmid

Proceedings Volume 8445, 844535 (2012) https://doi.org/10.1117/12.926005

KEYWORDS: Sensors, Actuators, Reflectivity, Computer architecture, Signal to noise ratio, Real-time computing, Laser communications, Control systems, Atmospheric modeling, Observatories

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Proceedings Article | 12 September 2012 Paper

Paper

Status of PRIMA for the VLTI: heading to astrometry

C. Schmid, R. Abuter, A. Merand, J. Sahlmann, J. Alonso, L. Andolfato, G. van Belle, F. Delplancke, F. Dérie, N. Di Lieto, R. Frahm, Ph. Gitton, N. Gomes, P. Haguenauer, B. Justen, S. Lévêque, S. Ménardi, S. Morel, A. Müller, T. Phan Duc, Eszter Pozna, A. Ramirez, N. Schuhler, D. Ségransan

Proceedings Volume 8445, 84450F (2012) https://doi.org/10.1117/12.926426

KEYWORDS: Stars, Signal to noise ratio, Telescopes, Wavelet transforms, Sensors, IRIS Consortium, Mirrors, Observatories, Interferometry, Interferometers

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Proceedings Article | 12 September 2012 Paper

Paper

The Very Large Telescope Interferometer v2012+

Pierre Haguenauer, Roberto Abuter, Luigi Andolfato, Jaime Alonso, Guillaume Blanchard, Jean-Philippe Berger, Pierre Bourget, Stephane Brillant, Frédéric Derie, Françoise Delplancke, Nicola Di Lieto, Christophe Dupuy, Bruno Gilli, Philippe Gitton, Juan Carlos Gonzalez, Stéphane Guisard, Serge Guniat, Gerhard Hudepohl, Andreas Kaufer, Samuel Lévêque, Serge Ménardi, Antoine Mérand, Sebastien Morel, Isabelle Percheron, Than Phan Duc, Sebastien Poupar, Andres Ramirez, Claudio Reineiro, Sridharan Rengaswamy, Thomas Rivinius, Markus Schöller, Christian Schmid, Alex Segovia, Nicolas Schuhler, Guillermo Valdes, Willem Jan de Wit, Markus Wittkowski

Proceedings Volume 8445, 84450D (2012) https://doi.org/10.1117/12.925323

KEYWORDS: Telescopes, Interferometers, Astatine, Interferometry, Large telescopes, Observatories, Systems engineering, Control systems, Mirrors, Sensors

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Proceedings Article | 28 July 2010 Paper

Paper

Main axes control of E-ELT

B. Sedghi, M. Müller, T. Erm, E. Brunetto, F. Koch, N. Di Lieto

Proceedings Volume 7733, 77331G (2010) https://doi.org/10.1117/12.856871

KEYWORDS: Telescopes, Computer programming, Wavefronts, Control systems, Head, Optical instrument design, Motion models, Device simulation, Error analysis, Sensing systems

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Proceedings Article | 22 July 2010 Paper

Paper

First results from fringe tracking with the PRIMA fringe sensor unit

J. Sahlmann, R. Abuter, S. Ménardi, C. Schmid, N. Di Lieto, F. Delplancke, R. Frahm, N. Gomes, P. Haguenauer, S. Lévêque, S. Morel, A. Mueller, T. Phan Duc, N. Schuhler, G. van Belle

Proceedings Volume 7734, 773422 (2010) https://doi.org/10.1117/12.856896

KEYWORDS: Calibration, Phase shifts, Sensors, Phase measurement, Control systems, Observatories, Polarization, Telescopes, Interferometers, Chemical elements

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Proceedings Article | 22 July 2010 Paper

Paper

Status of the VLTI-UT performances wrt vibrations

Sebastien Poupar, Pierre Haguenauer, Antoine Merand, Jaime Alonso, Pierre Bourget, Stephane Brillant, Roberto Castillo, Nicola Di Lieto, Jean-Louis Lizon, Philippe Gitton, Johannes Sahlmann, Nicolas Schuhler

Proceedings Volume 7734, 773437 (2010) https://doi.org/10.1117/12.856757

KEYWORDS: Telescopes, Mirrors, Interferometry, Control systems, Space telescopes, Visibility, Large telescopes, Interferometers, Electronics, Observatories

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Proceedings Article | 22 July 2010 Paper

Paper

The very large telescope Interferometer: 2010 edition

Pierre Haguenauer, Jaime Alonso, Pierre Bourget, Stephane Brillant, Philippe Gitton, Stephane Guisard, Sébastien Poupar, Nicolas Schuhler, Roberto Abuter, Luigi Andolfato, Guillaume Blanchard, Jean-Philippe Berger, Angela Cortes, Frédéric Dérie, Françoise Delplancke, Nicola Di Lieto, Christophe Dupuy, Bruno Gilli, Andreas Glindemann, Serge Guniat, Gerhard Huedepohl, Andreas Kaufer, Jean-Baptiste Le Bouquin, Samuel Lévêque, Serge Ménardi, Antoine Mérand, Sebastien Morel, Isabelle Percheron, Than Phan Duc, Andres Pino, Andres Ramirez, Sridharan Rengaswamy, Andrea Richichi, Thomas Rivinius, Johannes Sahlmann, Markus Schoeller, Christian Schmid, Stan Stefl, Guillermo Valdes, Gerard van Belle, Stefan Wehner, Markus Wittkowski

Proceedings Volume 7734, 773404 (2010) https://doi.org/10.1117/12.857070

KEYWORDS: Telescopes, Astatine, Interferometers, Interferometry, Adaptive optics, Large telescopes, Mirrors, Observatories, Statistical analysis, Image quality

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Proceedings Article | 22 July 2010 Paper

Paper

Status of PRIMA for the VLTI or the quest for user-friendly fringe tracking

C. Schmid, R. Abuter, S. Ménardi, L. Andolfato, F. Delplancke, F. Derie, N. Di Lieto, R. Frahm, Ph. Gitton, N. Gomes, P. Haguenauer, S. Lévêque, S. Morel, A. Müller, T. Phan Duc, Eszter Pozna, J. Sahlmann, N. Schuhler, G. van Belle

Proceedings Volume 7734, 77340F (2010) https://doi.org/10.1117/12.857419

KEYWORDS: Signal to noise ratio, Stars, Calibration, Sensors, Telescopes, Interferometry, Phase measurement, Signal detection, Mirrors, Observatories

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Proceedings Article | 22 July 2010 Paper

Paper

Vibration damping system for ALMA antenna transporters

M. Dimmler, Max Kraus, Lothar Kern, Nicola Di Lieto

Proceedings Volume 7739, 77391F (2010) https://doi.org/10.1117/12.856862

KEYWORDS: Antennas, Roads, Sensors, Electronics, Nitrogen, Observatories, Manufacturing, Safety, Model-based design, Space telescopes

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Proceedings Article | 28 July 2008 Paper

Paper

Results from the VLTI-PRIMA fringe tracking testbed

Johannes Sahlmann, Roberto Abuter, Nicola Di Lieto, Serge Ménardi, Françoise Delplancke, Hendrik Bartko, Frank Eisenhauer, Samuel Lévêque, Oliver Pfuhl, Nicolas Schuhler, Gerard van Belle, Gautam Vasisht

Proceedings Volume 7013, 70131A (2008) https://doi.org/10.1117/12.786612

KEYWORDS: Sensors, Calibration, Metrology, Computing systems, Signal to noise ratio, Atmospheric modeling, Detection and tracking algorithms, Observatories, Cameras, Actuators

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Proceedings Article | 28 July 2008 Paper

Paper

The Very Large Telescope Interferometer: an update

Pierre Haguenauer, Roberto Abuter, Jaime Alonso, Javier Argomedo, Bertrand Bauvir, Guillaume Blanchard, Henri Bonnet, Stéphane Brillant, Michael Cantzler, Frédéric Derie, Françoise Delplancke, Nicola Di Lieto, Christophe Dupuy, Yves Durand, Philippe Gitton, Bruno Gilli, Andreas Glindemann, Serge Guniat, Stéphane Guisard, Nicolas Haddad, Gerhard Hudepohl, Christian Hummel, Nathaniel Jesuran, Andreas Kaufer, Bertrand Koehler, Jean-Baptiste Le Bouquin, Samuel Lévêque, Christopher Lidman, Pedro Mardones, Serge Ménardi, Sébastien Morel, Isabelle Percheron, Monika Petr-Gotzens, Than Phan Duc, Florence Puech, Andres Ramirez, Fredrik Rantakyrö, Andrea Richichi, Thomas Rivinius, Johannes Sahlmann, Stefan Sandrock, Markus Schöller, Nicolas Schuhler, Fabio Somboli, Stanislav Stefl, Mario Tapia, Gerard Van Belle, Anders Wallander, Stefan Wehner, Markus Wittkowski

Proceedings Volume 7013, 70130C (2008) https://doi.org/10.1117/12.788209

KEYWORDS: Telescopes, Astatine, Adaptive optics, Mirrors, Interferometers, Large telescopes, Interferometry, IRIS Consortium, Sensors, Observatories

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Proceedings Article | 28 July 2008 Paper

Paper

Adaptive vibration cancellation on large telescopes for stellar interferometry

Nicola Di Lieto, Pierre Haguenauer, Johannes Sahlmann, Gautam Vasisht

Proceedings Volume 7013, 70130H (2008) https://doi.org/10.1117/12.787195

KEYWORDS: Detection and tracking algorithms, Telescopes, Large telescopes, Interferometers, Stellar interferometry, Mirrors, Actuators, Sensors, Computer simulations, Observatories

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Proceedings Article | 28 July 2008 Paper

Paper

Fringe tracking at VLTI: status report

Jean-Baptiste Le Bouquin, Roberto Abuter, Bertrand Bauvir, Henri Bonnet, Pierre Haguenauer, Nicola di Lieto, Serge Menardi, Sébastien Morel, Fredrik Rantakyrö, Markus Schoeller, Anders Wallander, Stefan Wehner

Proceedings Volume 7013, 701318 (2008) https://doi.org/10.1117/12.788414

KEYWORDS: Signal to noise ratio, Visibility, Telescopes, Reconstruction algorithms, Interferometry, Stars, Modulation, Calibration, Observatories, Astronomy

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Proceedings Article | 28 June 2006 Paper

Paper

VLTI-PRIMA fringe tracking testbed

Roberto Abuter, Sebastian Rabien, Frank Eisenhauer, Johannes Sahlmann, Nicola Di Lieto, Marcus Haug, Anders Wallander, Samuel Lévêque, Serge Ménardi, Françoise Delplancke, Nicolas Schuhler, Stefan Kellner, Robert Frahm

Proceedings Volume 6268, 62682Y (2006) https://doi.org/10.1117/12.671318

KEYWORDS: Mirrors, Sensors, Control systems, Relays, Observatories, Atmospheric optics, Laser metrology, Device simulation, Optical simulations, Optics manufacturing

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Proceedings Article | 27 June 2006 Paper

Paper

PRIMA for the VLTI: a status report

Francoise Delplancke, Frédéric Derie, Samuel Lévêque, Serge Ménardi, Roberto Abuter, Luigi Andolfato, Pascal Ballester, Jeroen de Jong, Nicola Di Lieto, Philippe Duhoux, Robert Frahm, Philippe Gitton, Andreas Glindemann, Ralf Palsa, Florence Puech, Johannes Sahlmann, Nicolas Schuhler, Thanh Phan Duc, Bruno Valat, Anders Wallander

Proceedings Volume 6268, 62680U (2006) https://doi.org/10.1117/12.660395

KEYWORDS: Stars, Telescopes, Metrology, Sensors, Mirrors, Actuators, Interferometers, Control systems, Beam splitters, Calibration

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Proceedings Article | 27 June 2006 Paper

Paper

Recent progress at the Very Large Telescope Interferometer

Markus Schöller, Javier Argomedo, Bertrand Bauvir, Leonardo Blanco-Lopez, Henri Bonnet, Stephane Brillant, Michael Cantzler, Johan Carstens, Fabio Caruso, Christian Choque-Cortez, Frederic Derie, Francoise Delplancke, Nicola Di Lieto, Martin Dimmler, Yves Durand, Mark Ferrari, Emmanuel Galliano, Philippe Gitton, Bruno Gilli, Andreas Glindemann, Serge Guniat, Stephane Guisard, Nicolas Haddad, Pierre Haguenauer, Nico Housen, Gerd Hudepohl, Christian Hummel, Andreas Kaufer, Mario Kiekebusch, Bertrand Koehler, Jean-Baptiste Le Bouquin, Samuel Leveque, Christopher Lidman, Pedro Mardones, Serge Menardi, Sebastien Morel, Manfred Mornhinweg, Jean-Luc Nicoud, Isabelle Percheron, Monika Petr-Gotzens, Than Phan Duc, Florence Puech, Andres Ramirez, Fredrik Rantakyrö, Andrea Richichi, Thomas Rivinius, Stefan Sandrock, Fabio Somboli, Jason Spyromilio, Stanislav Stefl, Vincent Suc, Roberto Tamai, Mario Tapia, Martin Vannier, Gautam Vasisht, Anders Wallander, Stefan Wehner, Markus Wittkowski, Juan Zagal

Proceedings Volume 6268, 62680L (2006) https://doi.org/10.1117/12.672231

KEYWORDS: Telescopes, Astatine, Interferometers, IRIS Consortium, Large telescopes, Interferometry, Mirrors, Optical fibers, Spectral resolution, Data archive systems

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Showing 5 of 32 publications

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