Dr. Ulrich Hopp Profile

Dr. Ulrich Hopp

Director Wendelstein Observatory

SPIE Involvement:

Author

Publications (40)

Proceedings Article | 5 October 2023 Poster + Paper

The telescope simulator for the Fraunhofer telescope Wendelstein

J. Erhardt, F. Grupp, 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

Read Abstract +

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, Florian Lang-Bardl, Ralf Bender

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

Read Abstract +

Proceedings Article | 13 December 2020 Poster + Presentation

Fiber Fabry-Perot interferometer as calibration source for medium resolution spectrographs in the visible range

Felicitas Niebler, Ralf Bender, Daniele Costantini, Maximilian Fabricius, Nicolai Granzow, Hanshin Lee, Fu Her, Gary Hill, Ulrich Hopp, Benjamin Staiger, Justin Stay

Proceedings Volume 11451, 114515M (2020) https://doi.org/10.1117/12.2560916

KEYWORDS: Spectrographs, Spectral calibration, Spectral resolution, Optical resolution, Calibration, Frequency combs, Telecommunications, Light sources, Exoplanets, Complex systems

Read Abstract +

Proceedings Article | 13 December 2020 Poster + Paper

Environmental stability achieved for the Manfred Hirt Planet Spectrograph

Vanessa Fahrenschon, Hanna Kellermann, Liang Wang, Frank Grupp, Claus Gössl, Ulrich Hopp, Wolfgang Mitsch, Michael Schmidt, Christoph Ries, Jana Steuer, Roberto Saglia, Ralf Bender

Proceedings Volume 11447, 114473H (2020) https://doi.org/10.1117/12.2560944

KEYWORDS: Planets, Spectrographs, Control systems, Telescopes, Observatories, Frequency combs, Calibration

Read Abstract +

Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Multifocal station for the Wendelstein 2m Fraunhofer Telescope

Kerstin Krecker, Maximilian Fabricius, Ralf Bender, Vanessa Fahrenschon, Hubert Gebler, Claus Gössl, Frank Grupp, Oliver Hans, Marco Häuser, Ulrich Hopp, Hanna Kellermann, Florian Lang-Bardl, Wolfgang Mitch, 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

Read Abstract +

Proceedings Article | 13 December 2020 Poster + Paper

Verification observations of the Manfred Hirt Planet Spectrograph

Hanna Kellermann, Liang Wang, Vanessa Fahrenschon, Jana Steuer, Fei Zhao, Frank Grupp, Michael Schmidt, Christoph Ries, Claus Goessel, Wolfgang Mitsch, Ulrich Hopp, Ralf Bender

Proceedings Volume 11447, 114474K (2020) https://doi.org/10.1117/12.2562495

KEYWORDS: Planets, Spectrographs, Observatories, Velocity measurements, Telescopes, Aluminium phosphide, Astronomy, Frequency combs, Calibration

Read Abstract +

Proceedings Article | 9 September 2019 Paper

First results of the 4-fiber upgrade of the high-resolution comb calibrated spectrograph FOCES

Hanna Kellermann, Liang Wang, Vanessa Fahrenschon, Frank Grupp, Ulrich Hopp, Ralf Bender

Proceedings Volume 11117, 111171O (2019) https://doi.org/10.1117/12.2529283

KEYWORDS: Calibration, Spectrographs, Spectral calibration, Observatories, Frequency combs, Optical fibers, CCD cameras, Multimode fibers

Read Abstract +

Proceedings Article | 30 July 2018 Open Access

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

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

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

KEYWORDS: Adaptive optics, Distortion, Planets

Read Abstract +

DOWNLOAD PAPER

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, H. Kravcar, J. Richter, 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

Read Abstract +

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 | 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, R. Bender, M. Haeuser, H. J. Hess, U. Hopp, H. Kravcar, J. Richter, J. Schlichter, H. Gebler

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

KEYWORDS: Cryogenics, Optical testing

Read Abstract +

Proceedings Article | 10 July 2018 Presentation + Paper

Observation scheduling with a free bug tracking software: redmine 4 obs

Claus Gössl, Jan Snigula, Ulrich Hopp

Proceedings Volume 10704, 1070411 (2018) https://doi.org/10.1117/12.2311688

KEYWORDS: Observatories, Telescopes, Astronomy, Control systems, Software development, Stars, Web services

Read Abstract +

Proceedings Article | 12 September 2017 Paper

Line profile analysis of the laser frequency comb in FOCES

Liang Wang, Frank Grupp, Hanna Kellermann, Ulrich Hopp, Ralf Bender

Proceedings Volume 10400, 104001V (2017) https://doi.org/10.1117/12.2273706

KEYWORDS: Charge-coupled devices, Frequency combs, Spectrographs, Telescopes, Signal to noise ratio, Observatories, Laser optics, Space telescopes, Calibration, Mode locking

Read Abstract +

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, E. Gendron, R. Genzel, 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, S. Ramsay, 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

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

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 9 August 2016 Paper

A new generation of spectral extraction and analysis package for Fibre Optics Cassegrain Echelle Spectrograph (FOCES)

Liang Wang, Frank Grupp, Hanna Kellermann, Anna Brucalassi, Jörg Schlichter, Ulrich Hopp, Ralf Bender

Proceedings Volume 9913, 99133O (2016) https://doi.org/10.1117/12.2231393

KEYWORDS: Spectrographs, Fiber optics, Telescopes, Observatories, Fiber optics, Telescopes, Charge-coupled devices, Calibration, CCD image sensors, Sensors, Spectral calibration, Lamps

Read Abstract +

Proceedings Article | 9 August 2016 Paper

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

F. Lang-Bardl, R. Bender, C. Goessl, F. Grupp, H.-J. Hess, J. Kaminski, K. Hodapp, U. Hopp, S. Jacobson, 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

Read Abstract +

Proceedings Article | 9 August 2016 Paper

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

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

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

Read Abstract +

Proceedings Article | 9 August 2016 Paper

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

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

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

Read Abstract +

Proceedings Article | 11 September 2015 Paper

A new fiber slit assembly for the FOCES spectrograph

Hanna Kellermann, Frank Grupp, Anna Brucalassi, Florian Lang-Bardl, Christian Franik, 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

Read Abstract +

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

Read Abstract +

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, Adolf Karasz, Ralf Kosyra, Ulrich Hopp, Ralf Bender

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

Read Abstract +

Proceedings Article | 22 July 2014 Paper

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

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

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

Read Abstract +

Proceedings Article | 26 September 2013 Paper

Pressure and temperature stabilization of an existing Échelle spectrograph IV

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

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

Read Abstract +

Proceedings Article | 5 October 2012 Paper

Pressure and temperature stabilization of an existing Echelle spectrograph III

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

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

Read Abstract +

Proceedings Article | 5 October 2012 Paper

Commissioning of the WWFI for the Wendelstein Fraunhofer Telescope

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

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

Read Abstract +

Proceedings Article | 27 September 2012 Paper

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

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

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

Read Abstract +

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

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

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

Read Abstract +

Proceedings Article | 24 September 2012 Paper

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

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

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

Read Abstract +

Proceedings Article | 17 September 2012 Paper

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

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

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

Read Abstract +

Proceedings Article | 17 September 2012 Paper

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

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

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

Read Abstract +

Proceedings Article | 15 September 2011 Paper

Pressure and temperature stabilization of an existing chelle spectrograph II

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

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

Read Abstract +

Proceedings Article | 4 August 2010 Paper

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

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

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

Read Abstract +

Proceedings Article | 21 July 2010 Paper

Pressure and temperature stabilization of an existing Echelle spectrograph

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

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

Read Abstract +

Proceedings Article | 20 July 2010 Paper

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

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

Read Abstract +

Proceedings Article | 20 July 2010 Paper

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

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

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

Read Abstract +

Proceedings Article | 12 July 2008 Paper

Improving the Wendelstein Observatory for a 2m-class telescope

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

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

Read Abstract +

Proceedings Article | 9 July 2008 Paper

VIRUS-W: an integral field unit spectrograph dedicated to the study of spiral galaxy bulges

Maximilian Fabricius, Stuart Barnes, Ralf Bender, Niv Drory, Frank Grupp, Gary Hill, Ulrich Hopp, Phillip MacQueen

Proceedings Volume 7014, 701473 (2008) https://doi.org/10.1117/12.787204

KEYWORDS: Spectrographs, Cameras, Spectral resolution, Galactic astronomy, Telescopes, Mirrors, Head, Optical fibers, Prisms, Diffraction gratings

Read Abstract +

Proceedings Article | 9 July 2008 Paper

A multi-instrument focal station for a 2m-class robotic telescope

Frank Grupp, Florian Lang, Ralf Bender, Claus Gössl, Ulrich Hopp

Proceedings Volume 7014, 70147M (2008) https://doi.org/10.1117/12.788656

KEYWORDS: Telescopes, Infrared cameras, Cameras, Space telescopes, Beam splitters, Sensors, Spectrographs, Infrared imaging, Mirrors, Calibration

Read Abstract +

Proceedings Article | 30 June 2006 Paper

The VIRUS data reduction pipeline

Claus Goessl, Niv Drory, Helena Relke, Karl Gebhardt, Frank Grupp, Gary Hill, Ulrich Hopp, Ralf Köhler, Phillip MacQueen

Proceedings Volume 6270, 627021 (2006) https://doi.org/10.1117/12.671264

KEYWORDS: Calibration, Optical fibers, Spectrographs, Sensors, Point spread functions, Telescopes, Galactic astronomy, Charge-coupled devices, Stars, Device simulation

Read Abstract +

Proceedings Article | 30 September 2004 Paper

OmegaCAM: wide-field imaging with fine spatial resolution

Konrad Kuijken, Ralf Bender, Enrico Cappellaro, Bernard Muschielok, Andrea Baruffolo, Enrico Cascone, H.-J. Hess, Olaf Iwert, Harald Nicklas, Klaus Reif, Edwin Valentijn, Dietrich Baade, K. Begeman, Alessandro Bortolussi, Danny Boxhoorn, F. Christen, Erik Deul, Laura Greggio, Reiner Harke, Reinhold Haefner, Ulrich Hopp, Ivica Ilijevski, Guenther Klink, Helmut Kravcar, Carlo Magagna, Wolfgang Mitsch, Philip Mueller, Henning Poschmann, Roeland Rengelink, Walter Wellem

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.550892

KEYWORDS: Charge-coupled devices, Telescopes, Sensors, Calibration, Camera shutters, Optical filters, Observatories, Image analysis, Astronomy, Cameras

Read Abstract +

Proceedings Article | 7 March 2003 Paper

Two-channel robotic CCD camera

Claus Goessl, Wolfgang Mitsch, Werner Altmann, Ulrich Hopp, Heinz Barwig

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.460321

KEYWORDS: Cameras, Beam splitters, CCD cameras, Telescopes, Camera shutters, Optical filters, Charge-coupled devices, Robotics, Control systems, Optical instrument design

Read Abstract +

Showing 5 of 40 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years