Mr. Florian Lang Profile

Florian Lang

Head of Mechanical Department at Max-Planck-Institut für extraterrestrische Physik

SPIE Involvement:

Author

Publications (39)

Proceedings Article | 5 October 2023 Poster + Paper

The telescope simulator for the Fraunhofer telescope Wendelstein

F. Grupp, J. Erhardt, H. Kellermann, F. Lang, C. Gössl, F. Kummer, F. Langaßner, U. Hopp, R. Bender

Proceedings Volume 12680, 126801R (2023) https://doi.org/10.1117/12.2676662

KEYWORDS: Telescopes, Device simulation, Calibration, Wavefronts, Cameras, Wavefront errors, Spectrographs, Lenses, Wavefront sensors, Equipment

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Proceedings Article | 29 August 2022 Poster + Paper

The MICADO main selection mechanism: final design

F. Lang-Bardl, A. Monna, F. Grupp, R. Bender, S. Annadevara, H. J. Hess, H. Kravcar, F. Kummer, J. Schlichter, M. Wegner, V. Ziel, C. Goessl, R. Katterloher

Proceedings Volume 12184, 1218434 (2022) https://doi.org/10.1117/12.2629043

KEYWORDS: Imaging systems, Switches, Optical components, Image resolution, Optical mounts, Spectroscopy, Sensors, Cryogenics, Interfaces, Cameras

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Proceedings Article | 29 August 2022 Poster

PLC based realization of the cryogenic and cold mechanism control system for MICADO

Hans-Joachim Hess, Hanna Kellerman, Helmut Kravcar, Felix Kummer, Florian Lang-Bardl, Anna Monna, Jörg Schlichter, Sriprasanna Srivalli Annadevara, Ralf Bender

Proceedings Volume 12184, 121843J (2022) https://doi.org/10.1117/12.2630287

KEYWORDS: Photonic integrated circuits, Control systems, Cryogenics, Control systems design, Telecommunications, Spectroscopes, Sensors, Safety, Near infrared spectroscopy, Imaging spectroscopy

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Proceedings Article | 29 August 2022 Presentation

The final design of MICADO, the first light ELT camera

Richard Davies, João Alves, Yann Clénet, Veronika Hörmann, Florian Kerber, Florian Lang-Bardl, Harald Nicklas, Jörg-Uwe Pott, Sebastian Rabien, Eckhard Sturm, Eline Tolstoy, Benedetta Vulcani, Jari Kotilainen

Proceedings Volume 12184, 121841Z (2022) https://doi.org/10.1117/12.2629858

KEYWORDS: Cameras, Imaging spectroscopy, Adaptive optics, Wavefront sensors, Stars, Spectroscopes, Optical calibration, Observatories, Near infrared spectroscopy, Laser guide stars

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Proceedings Article | 1 September 2021 Poster + Paper

Confirming transiting exoplanets with the Fraunhofer Telescope Wendelstein

Jana Steuer, Hanna Kellermann, Frank Grupp, Claus Gössl, Ulrich Hopp, Ralf Bender, Florian Lang-Bardl

Proceedings Volume 11823, 118231U (2021) https://doi.org/10.1117/12.2594662

KEYWORDS: Stars, Exoplanets, Telescopes, Photometry, Planets, Calibration, Spectrographs, Frequency combs, Software development, Observatories

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Multifocal station for the Wendelstein 2m Fraunhofer Telescope

Maximilian Fabricius, Ralf Bender, Vanessa Fahrenschon, Hubert Gebler, Claus Gössl, Frank Grupp, Oliver Hans, Marco Häuser, Ulrich Hopp, Florian Lang-Bardl, Wolfgang Mitch, Hanna Kellermann, Kerstin Krecker, Josef Richter, Surangkhana Rukdee, Roberto Saglia, Sami Wirthensohn

Proceedings Volume 11447, 1144763 (2020) https://doi.org/10.1117/12.2560940

KEYWORDS: Telescopes, Imaging systems, Cameras, Spectrographs, Velocity measurements, Wavefront sensors, Sensor calibration, Calibration, Optical design, Mechanical engineering

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Proceedings Article | 30 July 2018 Open Access

The MICADO first light imager for the ELT: overview, operation, simulation

L. Barl, P. Baudoz, R. Bender, P. Bizenberger, T. Buey, F. Chemla, M. Cohen, O. Czoske, K. Disseau, S. Dreizler, M. Fabricius, N. Geis, H. Gemperlein, R. Genzel, M. Glück, M. Hartl, M. Häuser, R. Hofferbert, U. Hopp, Z. Hubert, E. Huby, J.-M. Huet, V. Hutterer, D. Ives, A. Janssen, W. Jellema, W. Kausch, F. Kerber, H. Kravcar, K. Leschinski, C. Mandla, M. Manhart, L. Mohr, U. Neumann, N. Neumayer, A. Richter, J. Richter, G. Rodeghiero, M. Rosensteiner, J. Schlichter, J. Schubert, J. Thomas, M. Wegner, W. Zeilinger, J. Ziegleder, B. Ziegler, G. Zins, R. Davies, J. Alves, Y. Clénet, F. Lang-Bardl, H. Nicklas, J.-U. Pott, R. Ragazzoni, E. Tolstoy, P. Amico, H. Anwand-Heerwart, S. Barboza, N. Bezawada, W. Boland, P. Bonifacio, B. Borgo, F. Chapron, V. Déo, O. Dupuis, R. Falomo, P. Fedou, N. Förster Schreiber, V. Garrel, E. Gendron, S. Gillessen, F. Grupp, H.-J. Hess, V. Hörmann, B. Le Ruyet, D. Massari, S. Mei, F. Merlin, A. Monna, N. Muench, F. Müller, G. Musters, R. Navarro, J. Niebsch, M. Plattner, N. Przybilla, S. Rabien, R. Ramlau, J. Ramos, S. Ramsay, P. Rhode, H.-W. Rix, R.-R. Rohloff, G. Rousset, A. Sevin, R. Stuik, E. Sturm, N. Tromp, G. Verdoes-Kleijn, F. Vidal, R. Wagner

Proceedings Volume 10702, 107021S (2018) https://doi.org/10.1117/12.2311483

KEYWORDS: Adaptive optics, Distortion, Planets

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Proceedings Article | 11 July 2018 Paper

USM Test Cryostat for the MICADO project: first steps in stabilizing and testing the cryostat

A. Monna, F. Lang-Bardl, F. Grupp, H. J. Hess, J. Richter, M. Haeuser, H. Kravcar, J. Schlichter, U. Hopp, R. Bender, H. Gebler

Proceedings Volume 10702, 1070295 (2018) https://doi.org/10.1117/12.2312492

KEYWORDS: Cryogenics, Optical testing

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Proceedings Article | 11 July 2018 Paper

The MICADO Main Selection Mechanism (MSM): an operational mode selector for the MICADO instrument

F. Lang-Bardl, A. Monna, F. Grupp, R. Bender, M. Haeuser, H.-J. Hess, U. Hopp, J. Richter, H. Kravcar, J. Schlichter

Proceedings Volume 10702, 107028Y (2018) https://doi.org/10.1117/12.2311959

KEYWORDS: Interfaces, Cryogenics, Switches, Optical components, Imaging systems, Thermal modeling, Actuators, Spectroscopy, Mirrors, Image resolution

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MICADO, the Multi AO Imaging Camera for Deep Observations, is one of the first light instruments for the ELT, currently under construction by the European Southern Observatory (ESO) on Cerro Armazones in Chile. It is built by a huge consortium with partners from the Netherlands, Austria, France, Italy, Finland and Germany under the lead of the Max-Planck-Institute for extraterrestrial Physics in Garching. The instrument will operate in the NIR wavelength range, thus is developed as a cryogenic instrument to work under vacuum conditions. It can be used as an imaging camera in a high and low resolution mode, a spectrometer and also as a coronagraph. For calibration purposes a so called ”pupil imager” mode will also be implemented. To switch between the operational modes MICADO will use the MSM to insert different optical modules to the fixed components of the High Resolution Imager (HRI) inside the cryostat. All moving parts have to operate under vacuum and at cryogenic temperatures. The MSM consists of a rotating platform, where the optical modules are mounted on. To lower the friction inside the mechanism we decided to use several small bearings to support the platform instead of a central big one. The small bearings are placed in a way, that the movement of the platform is limited to a rotation. Some of the bearings will be preloaded by springs to take also CTE differences or temperature gradients during the cool down and warm up phases into account. The mechanism will be driven by a cryogenic Phytron stepper motor with an integrated planetary gear box. Switches will be used to limit the rotation of the platform to the necessary range. Because of the challenging requirements on repositioning of the optical modules inside the science beam, we will use an indent mechanism. We are still investigating if the indent mechanism has to be actively driven or can be implemented as a passive version. The necessary optics to switch between the operational modes are designed as individual pre-aligned modules, each with a defined mechanical and thermal interface to the rotating platform. The Low Resolution Imager (LRI) consists of two flat mirrors, blocking some of the fixed components of the HRI. The spectrometer will use two reflective gratings, one acting as the main and one as a cross disperser. The cross disperser separates the overlaying orders on the focal plane array. The pupil viewer consists like the LRI module of two flat mirrors and an additional lens imaging the pupil to the focal plane. In this paper we will present the current mechanical design and first results of the structural and thermal FEM analyses we performed. We will also highlight first ideas on integration and alignment. A second paper (A. Monna et al., same proceedings) concentrates on the cryogenic setups we perform inside a cryostat to proof proper functionality of the chosen components and designs.

Proceedings Article | 9 August 2016 Paper

Multi-fiber coupling through a miniature lens system into the FOCES spectrograph

Frank Grupp, Hanna Kellermann, Anna Brucalassi, Florian Lang-Bardl, Ulrich Hopp, Ralf Bender, Liang Wang, Nils Baisert

Proceedings Volume 9908, 990863 (2016) https://doi.org/10.1117/12.2231389

KEYWORDS: Observatories, Spectrographs, Calibration, Telescopes, Zemax, Velocity measurements, Frequency combs, Lens design, Image quality, Microscopes

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Proceedings Article | 9 August 2016 Paper

Stability of the FOCES spectrograph using an astro-frequency comb as calibrator

Frank Grupp, Anna Brucalassi, Hanna Kellermann, Liang Wang, Florian Lang-Bardl, Ulrich Hopp, Ralf Bender, Nils Baisert, Shao Ming Hu

Proceedings Volume 9908, 99085W (2016) https://doi.org/10.1117/12.2231395

KEYWORDS: Calibration, Spectrographs, Observatories, Frequency combs, Frequency combs, Telescopes, Laser stabilization, Charge-coupled devices, Precision calibration, Astronomical telescopes, Astronomy

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Proceedings Article | 9 August 2016 Paper

The Wendelstein three channel imager (3KK): alignment, commissioning, and first results

S. Jacobson, F. Lang-Bardl, R. Bender, C. Goessl, F. Grupp, H.-J. Hess, K. Hodapp, U. Hopp, J. Kaminski, H. Kravcar, A. Monna, W. Mitsch, J. Schlichter, M. Wegner

Proceedings Volume 9908, 990844 (2016) https://doi.org/10.1117/12.2232039

KEYWORDS: Imaging systems, Cameras, Optical filters, Near infrared, Observatories, Beam splitters, Telescopes, Channel projecting optics, Sensors, Image quality

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Proceedings Article | 9 August 2016 Open Access

MICADO: first light imager for the E-ELT

R. Davies, J. Schubert, M. Hartl, J. Alves, Y. Clénet, F. Lang-Bardl, H. Nicklas, J.-U. Pott, R. Ragazzoni, E. Tolstoy, T. Agocs, H. Anwand-Heerwart, S. Barboza, P. Baudoz, R. Bender, P. Bizenberger, A. Boccaletti, W. Boland, P. Bonifacio, F. Briegel, T. Buey, F. Chapron, M. Cohen, O. Czoske, S. Dreizler, R. Falomo, P. Feautrier, N. Förster Schreiber, R. Genzel, E. Gendron, M. Glück, D. Gratadour, R. Greimel, F. Grupp, M. Häuser, M. Haug, J. Hennawi, H. J. Hess, V. Hörmann, R. Hofferbert, U. Hopp, Z. Hubert, D. Ives, W. Kausch, F. Kerber, H. Kravcar, K. Kuijken, M. Leitzinger, K. Leschinski, D. Massari, S. Mei, F. Merlin, L. Mohr, A. Monna, F. Müller, R. Navarro, M. Plattner, N. Przybilla, R. Ramlau, T. Ratzka, P. Rhode, J. Richter, H.-W. Rix, G. Rodeghiero, R.-R. Rohloff, G. Rousset, R. Ruddenklau, V. Schaffenroth, J. Schlichter, A. Sevin, R. Stuik, E. Sturm, J. Thomas, N. Tromp, M. Turatto, G. Verdoes-Kleijn, F. Vidal, R. Wagner, M. Wegner, W. Zeilinger, B. Ziegler, G. Zins, S. Ramsay

Proceedings Volume 9908, 99081Z (2016) https://doi.org/10.1117/12.2233047

KEYWORDS: Adaptive optics, Cameras, Adaptive optics, Cameras, Stars, Mirrors, Galactic astronomy, Imaging spectroscopy, Interfaces, Spectroscopy, Zoom lenses, Sensors

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Proceedings Article | 9 August 2016 Open Access

MICADO: first light imager for the E-ELT

Proceedings Volume 9908, 99081Z (2016) https://doi.org/10.1117/12.2233047

KEYWORDS: Adaptive optics, Cameras, Adaptive optics, Cameras, Stars, Mirrors, Galactic astronomy, Imaging spectroscopy, Interfaces, Spectroscopy, Zoom lenses, Sensors

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Proceedings Article | 11 September 2015 Paper

A new fiber slit assembly for the FOCES spectrograph

Frank Grupp, Hanna Kellermann, Christian Franik, Anna Brucalassi, Florian Lang-Bardl, Ulrich Hopp, Ralf Bender

Proceedings Volume 9605, 96051R (2015) https://doi.org/10.1117/12.2187975

KEYWORDS: Spectrographs, Calibration, Observatories, Telescopes, Exoplanets, Light sources, Light emitting diodes, Connectors, Zemax, Aluminium phosphide

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Proceedings Article | 18 November 2014 Paper

A wavefront sensor for the Wendelstein Fraunhofer Telescope

Shao Ming Hu, Frank Grupp, Florian Lang-Bardl, Ulrich Hopp, Ralf Bender, Wolfgang Mitsch, Claus Gössl

Proceedings Volume 9298, 92981S (2014) https://doi.org/10.1117/12.2073146

KEYWORDS: Telescopes, Mirrors, Wavefront sensors, Space telescopes, Wavefronts, Image quality, Temperature metrology, Observatories, Calibration, Mechanical engineering

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Proceedings Article | 24 July 2014 Paper

4MOST: 4-metre Multi-Object Spectroscopic Telescope

Roelof de Jong, Olga Bellido-Tirado, Cristina Chiappini, Éric Depagne, Roger Haynes, Diana Johl, Olivier Schnurr, Axel Schwope, Jakob Walcher, Svend Bauer, Frank Dionies, Dionne Haynes, Andreas Kelz, Francisco Kitaura, Georg Lamer, Ivan Minchev, Volker Müller, Sebastián Nuza, Tilmann Piffl, Emil Popow, Matthias Steinmetz, Uğur Ural, Roland Winkler, Lutz Wisotzki, Wolfgang Ansorge, Eduardo Gonzalez Solares, Mike Irwin, Robert Kennicutt, David King, Richard McMahon, Sergey Koposov, Ian Parry, Xiaowei Sun, Nicholas Walton, Sam Barden, Allar Saviauk, Gabriella Frost, Andrew Sheinis, Will Saunders, James Gilbert, Gert Finger, Olaf Iwert, Mirko Krumpe, Jean-Louis Lizon, Piercarlo Bonifacio, Matthieu Cohen, Patrick François, Pascal Jagourel, Shan Mignot, Paola Sartoretti, Ralf Bender, Hans-Joachim Hess, Florian Lang-Bardl, Bernard Muschielok, Hans Böhringer, Thomas Boller, Angela Bongiorno, Marcella Brusa, Tom Dwelly, Andrea Merloni, Kirpal Nandra, Johannes Pragt, Ramón Navarro, Gerrit Gerlofsma, Ronald Roelfsema, Gavin Dalton, Kevin Middleton, Ian Tosh, Corrado Boeche, Elisabetta Caffau, Norbert Christlieb, Eva Grebel, Andreas Koch, Hans-G. Ludwig, Andreas Quirrenbach, Walter Seifert, Guido Thimm, Amina Helmi, Scott trager, Sofia Feltzing, Andreas Korn, Wilfried Boland, Joar Brynnel, Daniel Phillips, Gabriele Cescutti, Maria-Rosa Cioni, Harry Enke, Jean-Christophe Olaya, Monica Valentini, Manda Banerji, Vincenzo Mainieri, Frédéric Royer, Jörg Schlichter, Mara Salvato, Camilla Hansen, Holger Mandel, Luca Sbordone, Thomas Bensby, Gregory Ruchti, Karin Lind, Bengt Edvardsson, Matthew Colless, Jon Lawrence, Neville Legg, Simon Driver, Aaron Robotham, Roland Bacon, Patrick Caillier, Johan Kosmalski, Florence Laurent, Johan Richard, Peter Gillingham, Jean-Philippe Amans

Proceedings Volume 9147, 91470M (2014) https://doi.org/10.1117/12.2055826

KEYWORDS: Galactic astronomy, Spectrographs, Telescopes, Stars, Spine, Spectroscopy, Spectroscopes, X-rays, Observatories, Calibration

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Proceedings Article | 24 July 2014 Paper

The 4MOST instrument concept overview

Roger Haynes, David Sun, Joar Brynnel, Roelof de Jong, Samuel Barden, Olivier Schnurr, Olga Bellido, Eric Depagne, Jakob Walcher, Dionne Haynes, Roland Winkler, Svend-Marian Bauer, Allar Saviauk, Frank Dionies, Cristina Chiappini, Axel Schwope, Matthias Steinmetz, Richard McMahon, Sofia Feltzing, Patrick Francois, Scott Trager, Ian Parry, Mike Irwin, Nicholas Walton, David King, Eduaro Gonzalez-Solares, Ian Tosh, Gavin Dalton, Kevin Middleton, Piercarlo Bonifacio, Pascal Jagourel, Shan Mignot, Mathieu Cohen, Jean-Philippe Amans, Frederic Royer, Paola Sartoretti, Johan Pragt, Gerrit Gerlofsma, Ronald Roelfsema, Ramon Navarro, Guido Thimm, Walter Seifert, Trifon Trifonov, Wenli Xu, Florian Lang-Bardl, Bernard Muschielok, Hans-Joachim Hess, Frank Grupp, Hans Boehringer, Thomas Boller, Tom Dwelly, Ralf Bender, Piero Rosati, Olaf Iwert, Gert Finger, Jean-Louis Lizon L'Allemand, Will Saunders, Andrew Sheinis, Gabriella Frost, Lewis Waller, Tony Farrell, Florence Laurent, Patrick Caillier, Roland Bacon, Johan Richard, Johan Kosmalski, Wolfgang Ansorge, Norbert Christlieb, Holger Mandel, Jörg Schlichter

Proceedings Volume 9147, 91476I (2014) https://doi.org/10.1117/12.2057253

KEYWORDS: Control systems, Telescopes, Sensors, Calibration, Spectrographs, Metrology, Neodymium, Ions, Optical instrument design, Optical design

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Proceedings Article | 24 July 2014 Paper

Presenting a high accuracy Theta-Phi-style fiber-positioner prototype with a 15-mm pitch

Marco Haeuser, Florian Lang-Bardl, Josef Richter, Hans-Joachim Hess, Adrian Degwert, Ralf Kosyra, Ulrich Hopp, Ralf Bender, Adolf Karasz

Proceedings Volume 9147, 91476V (2014) https://doi.org/10.1117/12.2056300

KEYWORDS: Electromagnetic coupling, Electronics, Prototyping, Control systems, Metrology, Calibration, Motion controllers, Electroluminescent displays, Observatories, Microcontrollers

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Proceedings Article | 22 July 2014 Paper

Commissioning and science verification of the 2m-Fraunhofer Wendelstein Telescope

Nancy Ageorges, Ulrich Hopp, Ralf Bender, Frank Grupp, Claus Goessl, Florian Lang-Bardl, Wolfgang Mitsch, Arno Riffeser

Proceedings Volume 9145, 91452D (2014) https://doi.org/10.1117/12.2054498

KEYWORDS: Telescopes, Mirrors, Space telescopes, Observatories, Charge-coupled devices, Point spread functions, Stars, Spectrographs, CCD cameras, Cameras

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Proceedings Article | 26 September 2013 Paper

Pressure and temperature stabilization of an existing Échelle spectrograph IV

Anna Brucalassi, Liang Wang, Frank Grupp, Ralf Bender, Florian Lang, Christian Franik, Hanna Kellerm, Shao Ming Hu, Ulrich Hopp

Proceedings Volume 8864, 88641H (2013) https://doi.org/10.1117/12.2023274

KEYWORDS: Charge-coupled devices, Spectrographs, Temperature metrology, Observatories, Telescopes, Environmental sensing, Spectroscopy, Exoplanets, Photovoltaics, Motion analysis

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Proceedings Article | 5 October 2012 Paper

Pressure and temperature stabilization of an existing Echelle spectrograph III

Anna Brucalassi, Shao Ming Hu, Frank Grupp, Ulrich Hopp, Ralf Bender, Tobias Feger, Florian Lang-Bardl

Proceedings Volume 8446, 84462F (2012) https://doi.org/10.1117/12.925621

KEYWORDS: Spectrographs, Temperature metrology, Observatories, Telescopes, Spectroscopy, Charge-coupled devices, Planets, CCD image sensors, Photovoltaics, Prisms

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Proceedings Article | 5 October 2012 Paper

Commissioning of the WWFI for the Wendelstein Fraunhofer Telescope

Maximilian Fabricius, Florian Lang-Bardl, Claus Gössl, Ulrich Hopp, Ralf Kosyra, Ralf Bender, Adolf Karasz

Proceedings Volume 8446, 84463P (2012) https://doi.org/10.1117/12.926341

KEYWORDS: Cameras, Telescopes, Switches, Sensors, Interfaces, Charge-coupled devices, Interference (communication), Electromagnetic coupling, Connectors, Observatories

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Proceedings Article | 5 October 2012 Paper

4MOST: 4-metre multi-object spectroscopic telescope

David Sun, Olaf Iwert, Roger Haynes, Éric Depagne, Thomas Boller, Andrea Merloni, Corrado Boeche, Elisabetta Caffau, Luca Sbordone, Roelof de Jong, Dionne Haynes, Walter Seifert, Ramón Navarro, Dave King, Bernard Muschielok, Piercarlo Bonifacio, Olga Bellido-Tirado, Scott Trager, Gert Finger, Norbert Christlieb, Shan Mignot, Hans-G. Ludwig, Ivan Minchev, Camilla Hansen, Jean-Christophe Olaya, Trifon Trifonov, Mary Williams, Jean-Philippe Amans, Ralf Bender, Johannes Pragt, Ian Tosh, Mirko Krumpe, Kevin Middleton, Richard McMahon, Eduardo Gonzalez Solares, Robert Kennicutt, Lutz Wisotzki, Wolfgang Ansorge, Eva Grebel, Patrick Francois, Jakob Walcher, Florian Lang-Bardl, Gerrit Gerlofsma, Manda Banerji, Andreas Kelz, Wilfried Boland, Gavin Dalton, Kirpal Nandra, Mara Salvato, Tilmann Piffl, Olivier Schnurr, Ian Parry, Axel Schwope, Francisco Kitaura, Nicholas Walton, Matthias Steinmetz, Ronald Roelfsema, Jean-Louis Lizon, Paola Sartoretti, Georg Lamer, Mathieu Cohen, Roland Winkler, Hans Böhringer, Cristina Chiappini, Ugur Ural, Mainieri Vincenzo, Andreas Korn, Marcella Brusa, Diana Johl, Amina Helmi, Andreas Quirrenbach, Volker Müller, Andreas Koch, Frank Grupp, Frédéric Royer, Guido Thimm, Hans-Joachim Hess, Angela Bongiorno, Frank Dionies, Pascal Jagourel, Sebastián Nuza, Tom Dwelly, Sofia Feltzing, Sergey Koposov, Mike Irwin, Emil Popow

Proceedings Volume 8446, 84460T (2012) https://doi.org/10.1117/12.926239

KEYWORDS: Spectrographs, Telescopes, Stars, Space telescopes, Calibration, Actuators, Optical instrument design, Spectral resolution, Spectroscopy, Galactic astronomy

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Proceedings Article | 27 September 2012 Paper

Test system for a Shack-Hartmann sensor based telescope alignment demonstrated at the 40cm Wendelstein Telescope

Ralf Bender, Matthias Beyerlein, Frank Grupp, Burkhard Fleck, Stephanie Bogner, Johannes Pfund, ShaoMing Hu, M. Becker, Ulrich Hopp, Florian Lang-Bardl, Jürgen Lamprecht

Proceedings Volume 8444, 844458 (2012) https://doi.org/10.1117/12.925638

KEYWORDS: Telescopes, Mirrors, Sensors, Wavefronts, Wavefront sensors, Space telescopes, Cameras, Observatories, Optical design software, Device simulation

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Proceedings Article | 24 September 2012 Paper

VIRUS-W: commissioning and first-year results of a new integral field unit spectrograph dedicated to the study of spiral galaxy bulges

Jim Arns, Philipp Wullstein, Stuart Barnes, Gary Hill, Jan Snigula, Claus Gössl, Ulrich Hopp, Phillip MacQueen, Frank Grupp, Niv Drory, Ralf Bender, Maximilian Fabricius, Roberto Saglia, Florian Lang-Bardl

Proceedings Volume 8446, 84465K (2012) https://doi.org/10.1117/12.925177

KEYWORDS: Optical fibers, Spectral resolution, Telescopes, Spectrographs, Galactic astronomy, Cameras, Observatories, Mirrors, Sensors, Silica

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Proceedings Article | 24 September 2012 Paper

A fibre positioner solution for the 4MOST instrument

Ralf Kosyra, Veronika Junk, Florian Lang-Bardl, Bernard Muschielok, Marco Häuser, Josef Richter, Jörg Schlichter, Hans-Joachim Hess, Frank Grupp, Christoph Schwab, Ralf Bender

Proceedings Volume 8446, 844661 (2012) https://doi.org/10.1117/12.925969

KEYWORDS: Staring arrays, Telescopes, Electronics, Spectrographs, Control systems, Mirrors, Microcontrollers, Metrology, Astronomical imaging, Optical instrument design

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Proceedings Article | 24 September 2012 Paper

A testbed for simultaneous measurement of fiber near and far-field for the evaluation of fiber scrambling properties

Florian Lang-Bardl, Tobias Feger, Ulrich Hopp, Ralf Bender, Frank Grupp, Ronald Holzwarth, Anna Brucalassi

Proceedings Volume 8446, 844692 (2012) https://doi.org/10.1117/12.925624

KEYWORDS: Optical fibers, Cladding, Telescopes, Light emitting diodes, Spectrographs, Visible radiation, CCD cameras, Light, Observatories, Doppler effect

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Proceedings Article | 24 September 2012 Paper

A wide field corrector concept including an atmospheric dispersion corrector for the ESO-NTT

Florian Lang-Bardl, Frank Grupp, Ralf Bender

Proceedings Volume 8446, 84465Z (2012) https://doi.org/10.1117/12.925622

KEYWORDS: Tolerancing, Optical design, Computer aided design, Atmospheric corrections, Telescopes, Lenses, Atmospheric modeling, Image quality, Digital signal processing, Spectroscopy

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Proceedings Article | 17 September 2012 Paper

New Fraunhofer Telescope Wendelstein: assembly, installation, and current status

Hans Thiele, Christian Abfalter, Nancy Ageorges, Ulrich Hopp, Dirk Kampf, Frank Grupp, Micheal Ruder, Claus Gössl, Sebastian Egner, Peter Aniol, Florian Lang-Bardl, Mike Hartl, Wolfgang Mitsch, Ralf Bender

Proceedings Volume 8444, 84441B (2012) https://doi.org/10.1117/12.927096

KEYWORDS: Telescopes, Mirrors, Domes, Space telescopes, Observatories, Optical fabrication, Electronics, Image quality, Integrated optics, Optical alignment

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Proceedings Article | 17 September 2012 Paper

First tests of the compact low scattered-light 2m-Wendelstein Fraunhofer Telescope

Claus Gössl, Ralf Bender, Heinz Barwig, Frank Grupp, Hans Thiele, Peter Aniol, Ulrich Hopp, Florian Lang-Bardl, Nancy Ageorges, Michael Ruder, Wolfgang Mitsch

Proceedings Volume 8444, 84442V (2012) https://doi.org/10.1117/12.926427

KEYWORDS: Telescopes, Observatories, Mirrors, Space telescopes, Domes, Reflectivity, Imaging systems, Coating, Astronomical telescopes, Cameras

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Proceedings Article | 15 September 2011 Paper

Pressure and temperature stabilization of an existing chelle spectrograph II

Shao Ming Hu, Ralf Bender, Frank Grupp, Anna Brucalassi, Ronald Holzwarth, Ulrich Hopp, Florian Lang, Thomas Udem

Proceedings Volume 8151, 815119 (2011) https://doi.org/10.1117/12.893610

KEYWORDS: Spectrographs, Observatories, Telescopes, Planets, 3D modeling, Spectroscopes, Glasses, Zemax, Photovoltaics, Quantum optics

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Proceedings Article | 4 August 2010 Paper

The compact, low scattered-light 2m Wendelstein Fraunhofer Telescope

Hans Thiele, Florian Lang-Bardl, Heinz Barwig, Roland Schöggl, Frank Grupp, Ulrich Hopp, Dirk Kampf, Wolfgang Mitsch, Markus Schmidt, Michael Hartl, Peter Aniol, Ralf Bender, Claus Gössl

Proceedings Volume 7733, 773307 (2010) https://doi.org/10.1117/12.856461

KEYWORDS: Telescopes, Space telescopes, Mirrors, Observatories, Domes, Spectrographs, Optical instrument design, Cameras, Imaging systems, Point spread functions

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Proceedings Article | 21 July 2010 Paper

Pressure and temperature stabilization of an existing Echelle spectrograph

Ralf Bender, Wang Liang, Ulrich Hopp, Florian Lang-Bardl, Shao-Ming Hu, Frank Grupp, Ronald Holzwarth, Thomas Udem, Anna Brucalassi

Proceedings Volume 7735, 773573 (2010) https://doi.org/10.1117/12.856653

KEYWORDS: Spectrographs, Observatories, Telescopes, Planets, Space telescopes, Fiber couplers, Calibration, Spectroscopes, Temperature metrology, Stars

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Proceedings Article | 20 July 2010 Paper

3kk: the Optical-NIR Multi-Channel Nasmyth Imager for the Wendelstein Fraunhofer Telescope

Florian Lang-Bardl, Frank Grupp, Maximilian Fabricius, Ralf Bender, Shane Jacobson, Claus Gössl, Ulrich Hopp, Klaus Hodapp, Wolfgang Mitsch

Proceedings Volume 7735, 77353Q (2010) https://doi.org/10.1117/12.856444

KEYWORDS: Cameras, Telescopes, Near infrared, Optical filters, Sensors, Channel projecting optics, Imaging systems, Beam splitters, Distortion, Astronomy

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Proceedings Article | 20 July 2010 Paper

A 64 Mpixel camera for the Wendelstein Fraunhofer Telescope Nasmyth wide-field port: WWFI

Florian Lang-Bardl, Claus Gössl, Hans Thiele, Kevin Toerne, Werner Altmann, Scott Clark, Frank Grupp, Ralf Bender, Wolfgang Mitsch, Ann Ayres, Michael Hartl, Dirk Kampf, Gary Sims, Ulrich Hopp

Proceedings Volume 7735, 773535 (2010) https://doi.org/10.1117/12.856432

KEYWORDS: Telescopes, Cameras, Optical filters, Sensors, Charge-coupled devices, Optical instrument design, CCD cameras, Observatories, Camera shutters, Imaging systems

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Proceedings Article | 14 July 2009 Paper

Endoscopic low coherence interferometry in upper airways

Yves Delacrétaz, Christian Depeursinge, Daniel Boss, Florian Lang

Proceedings Volume 7372, 73721Z (2009) https://doi.org/10.1117/12.831801

KEYWORDS: Endoscopes, Interferometry, Endoscopy, Beam splitters, Pathology, Coherence (optics), Signal detection, Sensors, Interferometers, Semiconductor lasers

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Proceedings Article | 12 July 2008 Paper

Improving the Wendelstein Observatory for a 2m-class telescope

Florian Lang, Claus Goessl, Silona Wilke, Arno Riffeser, Christoph Ries, Wolfgang Mitsch, Helena Relke, Ulrich Hopp, Ralf Bender, Heinz Barwig, Frank Grupp

Proceedings Volume 7016, 70161T (2008) https://doi.org/10.1117/12.787071

KEYWORDS: Telescopes, Observatories, Cameras, Domes, Space telescopes, Astronomy, CCD cameras, Charge-coupled devices, Robotics, Electronics

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