Dr. Ulf Seemann Profile

Dr. Ulf Seemann

Systems Engineer at European Southern Observatory

Publications (30)

Proceedings Article | 19 July 2024 Presentation

Presentation

High-resolution spectroscopy of young giant exoplanets with VLT/HiRISE: status and performance after commissioning

Arthur Vigan, Mona El Morsy, Maxime Lopez, Gilles P. P. Otten, José Garcia, Jean Costes, Eduard Muslimov, Alexandre Viret, Yannick Charles, Gérard Zins, Graham Murray, Anne Costille, Jérôme Paufique, Ulf Seemann, Mathis Houllé, Heiko Anwand-Heerwart, Mark Phillips

Proceedings Volume 13096, 130960B (2024) https://doi.org/10.1117/12.3017769

KEYWORDS: Exoplanets, Spectroscopy, Spectral resolution, Optical spheres, Equipment, Telescopes, Stars, Spectroscopes, Spectrographs, Single mode fibers

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Proceedings Article | 18 July 2024 Poster + Paper

Poster + Paper

The MICADO first light imager for the ELT: proof of concept and performance testing of the relay optics alignment procedure

André Boné, Santiago Barboza, Robert Harris, Friedrich Müller, Benjamin Setterholm, Gabriele Rodeghiero, Paul Joseph, Jörg-Uwe Pott, Ralf-Rainer Rohloff, Ralph Hofferbert, Peter Bizenberger, José Ramos, Norbert Münch, Udo Neumann, Mike Hartl, Norbert Geiss, Christophe Dupuy, Ulf Seemann

Proceedings Volume 13096, 130965C (2024) https://doi.org/10.1117/12.3017954

KEYWORDS: Mirrors, Optical alignment, Tolerancing, Telescopes, Mirror mounts, Optics manufacturing, Alignment procedures, Relays, Manufacturing

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Proceedings Article | 18 July 2024 Presentation + Paper

Presentation + Paper

The MICADO first light imager for the ELT: overview and current status

E. Sturm, R. Davies, J. Alves, Y. Clénet, J. Kotilainen, A. Monna, H. Nicklas, J.-U. Pott, E. Tolstoy, B. Vulcani, J. Achren, S. Annadevara, H. Anwand-Heerwart, C. Arcidiacono, S. Barboza, L. Barl, P. Baudoz, R. Bender, N. Bezawada, F. Biondi, P. Bizenberger, A. Blin, A. Boné, P. Bonifacio, B. Borgo, J. van den Born, T. Buey, Y. Cao, F. Chapron, G. Chauvin, F. Chemla, K. Cloiseau, M. Cohen, C. Colin, O. Czoske, J.-O. Dette, M. Deysenroth, E. Dijkstra, S. Dreizler, O. Dupuis, G. van Egmond, F. Eisenhauer, E. Elswijk, A. Emslander, M. Fabricius, G. Fasola, F. Ferreira, N. Förster Schreiber, A. Fontana, J. Gaudemard, N. Gautherot, E. Gendron, C. Gennet, R. Genzel, L. Ghouchou, S. Gillessen, D. Gratadour, A. Grazian, F. Grupp, S. Guieu, M. Gullieuszik, M. de Haan, J. Hartke, M. Hartl, F. Haussmann, T. Helin, H.-J. Hess, R. Hofferbert, H. Huber, E. Huby, J.-M. Huet, D. Ives, A. Janssen, P. Jaufmann, T. Jilg, D. Jodlbauer, J. Jost, W. Kausch, H. Kellermann, F. Kerber, H. Kravcar, K. Kravchenko, C. Kulcsár, H. Kuncarayakti, P. Kunst, S. Kwast, F. Lang, J. Lange, V. Lapeyrere, B. Le Ruyet, K. Leschinski, H. Locatelli, D. Massari, S. Mattila, S. Mei, F. Merlin, E. Meyer, C. Michel, L. Mohr, M. Montargès, F. Müller, N. Münch, R. Navarro, U. Neumann, N. Neumayer, L. Neumeier, F. Pedichini, A. Pflüger, R. Piazzesi, L. Pinard, J. Porras, E. Portulari, N. Przybilla, S. Rabien, J. Raffard, R. Ragazzoni, R. Ramlau, J. Ramos, S. Ramsay, H.-F. Raynaud, P. Rhode, A. Richter, H.-W. Rix, M. Rodenhuis, R.-R. Rohloff, R. Romp, P. Rousselot, N. Sabha, B. Sassolas, J. Schlichter, M. Schuil, M. Schweitzer, U. Seemann, A. Sevin, M. Simioni, L. Spallek, A. Sönmez, J. Suuronen, S. Taburet, J. Thomas, E. Tisserand, P. Vaccari, E. Valenti, G. Verdoes Kleijn, M. Verdugo, F. Vidal, R. Wagner, M. Wegner, D. van Winden, J. Witschel, A. Zanella, W. Zeilinger, J. Ziegleder, B. Ziegler

Proceedings Volume 13096, 1309611 (2024) https://doi.org/10.1117/12.3017752

KEYWORDS: Imaging systems, James Webb Space Telescope, Imaging spectroscopy, Design and modelling, Adaptive optics, Stars, Manufacturing, Equipment, Wavefront sensors, Spectroscopes

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Proceedings Article | 30 August 2022 Presentation + Paper

Presentation + Paper

Connecting SPHERE and CRIRES+ for the characterisation of young exoplanets at high spectral resolution: status update of VLT/HiRISE

A. Vigan, M. Lopez, M. El Morsy, E. Muslimov, A. Viret, G. Zins, G. Murray, A. Costille, G. P. P. Otten, U. Seemann, H. Anwand-Heerwart, K. Dohlen, P. Blanchard, J. Garcia, Y. Charles, N. Tchoubaklian, T. Ely, M. Phillips, J. Paufique, J.-L. Beuzit, M. Houllé, J. Costes, R. Pourcelot, I. Baraffe, R. Dorn, M. Jaquet, M. Kasper, A. Reiners, A. Smette, L. Blanco, L. Pallanca, A. Carlotti, É. Choquet, D. Mouillet, M. N'Diaye

Proceedings Volume 12185, 121850S (2022) https://doi.org/10.1117/12.2629208

KEYWORDS: Optical spheres, Calibration, Finite element methods, Fiber science, Telescopes, Exoplanets, Optics manufacturing, Spectrographs, Spectral resolution, Planets

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Proceedings Article | 29 August 2022 Paper

Paper

CRIRES+: characterisation and preparation during the pandemic

Paul Bristow, Andrea Baruffolo, Jonathan Smoker, Florian Rodler, Reinhold Dorn, Claudio Cumani, Derek Ives, Yves Jung, Thomas Marquart, Christophe Moins, Mark Neeser, Ernesto Oliva, Jérôme Paufique, Nikolai Piskunov, Ricardo Schmutzer, Ulf Seemann, Ditte Slumstrup, Jose Javier Valenzuela

Proceedings Volume 12184, 121845X (2022) https://doi.org/10.1117/12.2630207

KEYWORDS: Metrology, Sensors, Calibration, Lamps, Observatories, Staring arrays, Optical alignment, Fabry–Perot interferometers, Spectrographs

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

CRIRES+ on sky: high spectral resolution at infrared wavelength enabling better science at the ESO VLT

Reinhold Dorn, Paul Bristow, Jonathan Smoker, Florian Rodler, Matteo Accardo, Andrea Baruffolo, Claudio Cumani, Andreas Haimerl, Artie Hatzes, Marcus Haug, Ulrike Heiter, Renate Hinterschuster, Norbert Hubin, Derek Ives, Matias Jones, Yves Jung, Jean-Paul Kirchbauer, Barbara Klein, Jana Köhler, Heidi Korhonen, Alexis Lavail, Thomas Marquart, Christophe Moins, Ignacio Molina-Conde, Ernesto Oliva, Laurent Pallanca, Luca Pasquini, Jerome Paufique, Nikolai Piskunov, Ansgar Reiners, Dominik Schneller, Ricardo Schmutzer, Ulf Seemann, Ditte Slumstrup, Alain Smette, Jörg Stegmeier, Eric Stempels, Sebastien Tordo, Elena Valenti, Jose Javier Valenzuela, Joel Vernet

Proceedings Volume 12184, 121841F (2022) https://doi.org/10.1117/12.2629969

KEYWORDS: Sensors, Calibration, Adaptive optics, Stars, Spectral resolution, Spectrographs, Mirrors, K band, Infrared radiation, Polarization

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Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

The absorbing cells for the NIR spectrograph GIANO-B@TNG

R. Claudi, A. Ghedina, M. Aliverti, L. Cabona, S. Stefani, A. Tozzi, I. Carleo, V. D'Orazi, A. Lanza, G. Micela, E. Pace, G. Piccioni, M. Rainer, U. Seeman, J. Liù

Proceedings Volume 12184, 121844W (2022) https://doi.org/10.1117/12.2630124

KEYWORDS: Stars, Spectrographs, Near infrared, Sun, Optical fibers, Telescopes, Planets, Calibration, Observatories, Absorption

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Proceedings Article | 29 August 2022 Poster

Poster

The CRIRES+ calibration system and infrared Fabry-Perot Etalon

Ulf Seemann

Proceedings Volume 12184, 121845W (2022) https://doi.org/10.1117/12.2630183

KEYWORDS: Fabry–Perot interferometers, Calibration, Infrared radiation, Infrared imaging, Velocimetry, Spectrographs, Spectral calibration, Frequency combs

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Proceedings Article | 18 December 2020 Presentation + Paper

Presentation + Paper

A status report on the instruments for ESO’s Extremely Large Telescope

Suzanne Ramsay, Paola Amico, Naidu Bezawada, Fabio Biancat Marchet, Patrick Caillier, Michele Cirasuolo, Ralf Conzelmann, Reinhold Dorn, Sebastian Egner, Christoph Frank, Elizabeth George, Frederic Gonte, Juan Carlos González Herrera, Peter Hammersley, Christoph Haupt, Derek Ives, Gerd Jakob, Florian Kerber, Bertrand Koehler, Sylvain Oberti, Christian Schmid, Johannes Schimpelsberger, Ulf Seemann, Ralf Siebenmorgen, Roberto Tamai, Joël Vernet

Proceedings Volume 11447, 114471U (2020) https://doi.org/10.1117/12.2562555

KEYWORDS: Large telescopes, Spectrographs, Adaptive optics, Imaging systems, Cameras, Mid-IR, Tomography, Astronomical imaging

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Proceedings Article | 12 July 2018 Paper

Paper

ELT -HIRES the High Resolution Spectrograph for the ELT: Fabry-Pérots for use as calibration sources

Philipp Huke, Sebastian Schäfer, Ansgar Reiners, Ulf Seemann, Marco Riva, Francesco Pepe, Bruno Chazelas, Piotr Masłowski, Grzegorz Kowzan, Richard McCracken, Derryck Reid

Proceedings Volume 10702, 107029L (2018) https://doi.org/10.1117/12.2313394

KEYWORDS: Calibration, Spectrographs, Fourier transforms, Spectroscopy, Precision calibration, Spectral calibration

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Proceedings Article | 11 July 2018 Paper

Paper

The MICADO first light imager for the ELT: preliminary design of the MICADO Calibration Assembly

G. Rodeghiero, J.-U. Pott, N. Münch, R.-R. Rohloff, U. Grözinger, E. Biancalani, M. Sawczuck, M. Häberle, J. Moreno-Ventas, S. Schäfer, U. Seemann, V. Naranjo, S. Barboza, F. Müller, R. Hofferbert, J. Ramos, L. Mohr, M. C. Cárdenas Vázquez, P. Bizenberger, C. Pernechele, M. Ebert, M. Fabricius

Proceedings Volume 10702, 107028U (2018) https://doi.org/10.1117/12.2311721

KEYWORDS: Calibration, Lamps, Prototyping, Manufacturing, Light sources, Sensors, Mirrors, Imaging spectroscopy, Adaptive optics, Telescopes

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Proceedings Article | 10 July 2018 Paper

Paper

GIANO-B online data reduction software at the TNG

Avet Harutyunyan, Monica Rainer, Nauzet Hernandez, Ernesto Oliva, Jose Guerra, Marcello Lodi, Jose San Juan, Andrea Bignamini, Adriano Ghedina, Francesca Ghinassi, Emilio Molinari, Serena Benatti, Ilaria Carleo, Riccardo Claudi, Giuseppina Micela, Andrea Tozzi, Carlo Baffa, Andrea Baruffolo, Valdemaro Biliotti, Nicolas Buchschacher, Massimo Cecconi, Rosario Cosentino, Gilberto Falcini, Daniela Fantinel, Luca Fini, Alberto Galli, Elisabetta Giani, Carlos Gonzalez, Esther Gonzalez-Alvarez, Manuel Gonzalez, Raffaele Gratton, Marcos Hernandez Diaz, Marcella Iuzzolino, Luca Malavolta, Jesus Maldonado, Livia Origlia, Ennio Poretti, Hector Perez Ventura, Alfio Puglisi, Carlos Riverol, Luis Riverol, Nicoletta Sanna, Salvatore Scuderi, Ulf Seeman, Alessandro Sozzetti, Mauro Sozzi

Proceedings Volume 10706, 1070642 (2018) https://doi.org/10.1117/12.2312690

KEYWORDS: Data archive systems, Databases, Data processing, Near infrared

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Proceedings Article | 9 July 2018 Presentation

Presentation

CRIRES+ on its way to VLT (Conference Presentation)

Roman Follert, Reinhold Dorn, Anna Brucalassi, Paul Bristow, Artie Hatzes, Ulf Seemann, Nikolai Piskunov, Alexis Lavail, Barbara Klein, Claudio Cumani, Christophe Moins, Derek Ives, Eric Stempels, Ernesto Oliva, Ignacio Molina-Conde, Jean Louis Lizon, Marcus Haug, Siegfried Eschbaumer, Thomas Marquart, Ulrike Heiter, Sebastien Tordo, Renate Hinterschuster, Yves Jung, Jérôme Paufique, Andreas Haimerl, Jörg Stegmeier, Jean-Paul Kirchbauer, Christoph Schmidt, Elena Valenti, Luca Pasquini, Ansgar Reiners, Heiko Anwand-Heerwart, Katja Hauptner, Tim Umlauf, Peter Jeep, Petra Rhode, Christopher Marvin

Proceedings Volume 10702, 107020E (2018) https://doi.org/10.1117/12.2314150

KEYWORDS: Adaptive optics, Space telescopes, Observatories, Spectral resolution, Telescopes, Large telescopes, Space operations, Staring arrays, Sensors, Calibration

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Proceedings Article | 9 July 2018 Paper

Paper

Very accurate cryogenic mechanisms for CRIRES+

Jean Louis Lizon, Barbara Klein, Ignacio Molina-Conde, Ernesto Oliva, Guillem Anglada Escude, Paul Bristow, Reinhold Dorn, Roman Follert, Artie Hatzes, Ulrike Heiter, Derek Ives, Yves Jung, Matt Lockhart, Thomas Marquart, Livia Origlia, Luca Pasquini, Jerome Paufique, Nikolai Pistunov, Ansgar Reiners, Alain Smette, Jonathan Smoker, Ulf Seemann, Eric Stempels, Elena Valenti

Proceedings Volume 10701, 107012R (2018) https://doi.org/10.1117/12.2314483

KEYWORDS: Actuators, Cryogenics, Switches, Manufacturing, Mirrors, Cryogenic mechanisms, Sensors, Spectrographs, Connectors, Transducers

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Proceedings Article | 6 July 2018 Paper

Paper

A unique infrared spectropolarimetric unit for CRIRES+

Nikolai Piskunov, Eric Stempels, Alexis Lavail, Michael Escuti, Frans Snik, Andrey Dolgopolov, Milan Rozel, Candice Durandet, Artie Hatzes, Paul Bristow, Anna Brucalassi, Claudio Cumani, Reinhold Dorn, Andreas Haimerl, Ulrike Heiter, Renate Hinterschuster, Roman Follert, Derek Ives, Yves Jung, Florian Kerber, Barbara Klein, Jean-Louis Lizon, Thomas Marquart, Ignacio Molina-Conde, Luca Pasquini, Jérôme Paufique, Ernesto Oliva, Ansgar Reiners, Ulf Seemann, Jörg Stegmeier, Sebastien Tordo, Elena Valenti

Proceedings Volume 10702, 1070234 (2018) https://doi.org/10.1117/12.2313512

KEYWORDS: Polarization, Sensors, Transmittance, Infrared radiation, Telescopes, Manufacturing, Stars, Magnetism, Adaptive optics, Infrared spectroscopy

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High-resolution infrared spectropolarimetry has many science applications in astrophysics. One of them is measuring weak magnetic fields using the Zeeman effect. Infrared domain is particularly advantageous as Zeeman splitting of spectral lines is proportional to the square of the wavelength while the intrinsic width of the line cores increases only linearly. Important science cases include detection and monitoring of global magnetic fields on solar-type stars, study of the magnetic field evolution from stellar formation to the final stages of the stellar life with massive stellar winds, and the dynamo mechanism operation across the boundary between fully- and partially-convective stars. CRIRES+ (the CRIRES upgrade project) includes a novel spectropolarimetric unit (SPU) based on polar- ization gratings. The novel design allows to perform beam-splitting very early in the optical path, directly after the tertiary mirror of the telescope (the ESO Very Large Telescope, VLT), minimizing instrumental polariza- tion. The new SPU performs polarization beam-splitting in the near-infrared while keeping the telescope beam mostly unchanged in the optical domain, making it compatible with the adaptive optics system of the CRIRES+ instrument. The SPU consists of four beam-splitters optimized for measuring circular and linear polarization of spectral lines in YJ and HK bands. The SPU can perform beam switching allowing to correct for throughput in each beam and for variations in detector pixel sensitivity. Other new features of CRIRES+, such as substantially increased wavelength coverage, stability and advanced data reduction pipeline will further enhance the sensitivity of the polarimetric mode. The combination of the SPU, CRIRES+ and the VLT is a unique facility for making major progress in understanding stellar activity. In this article we present the design of the SPU, laboratory measurements of individual components and of the whole unit as well as the performance prediction for the operation at the VLT.

Proceedings Article | 6 July 2018 Paper

Paper

Full system test and early preliminary acceptance Europe results for CRIRES+

Anna Brucalassi, Reinhold Dorn, Roman Follert, Artie Hatzes, Paul Bristow, Ulf Seemann, Claudio Cumani, Siegfried Eschbaumer, Andreas Haimerl, Marcus Haug, Ulrike Heiter, Renate Hinterschuster, Derek Ives, Yves Jung, Florian Kerber, Barbara Klein, Alexis Lavail, Jean Louis Lizon, Thomas Marquart, Christophe Moins, Ignacio Molina-Conde, Ernesto Oliva, Luca Pasquini, Jérôme Paufique, Nikolai Piskunov, Jörg Stegmeier, Eric Stempels, Sebastien Tordo, Elena Valenti, Heiko Anwand-Heerwart, Katja Hauptner, Peter Jeep, Christopher Marvin, Ansgar Reiners, Petra Rhode, Christof Schmidt, Tim Umlauf

Proceedings Volume 10702, 1070239 (2018) https://doi.org/10.1117/12.2313743

KEYWORDS: Calibration, Adaptive optics, Spectrographs, Metrology, Fabry–Perot interferometers, Cryogenics, Detector arrays

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Proceedings Article | 6 July 2018 Paper

Paper

Introducing GOFIO: a DRS for the GIANO-B near-infrared spectrograph

Monica Rainer, Avet Harutyunyan, Ilaria Carleo, Ernesto Oliva, Serena Benatti, Andrea Bignamini, Riccardo Claudi, Esther Gonzalez-Alvarez, Nicoletta Sanna, Adriano Ghedina, Giuseppina Micela, Emilio Molinari, Andrea Tozzi, Carlo Baffa, Andrea Baruffolo, Nicolas Buchschacher, Massimo Cecconi, Rosario Cosentino, Gilberto Falcini, Daniela Fantinel, Luca Fini, Alberto Galli, Francesca Ghinassi, Elisabetta Giani, Carlos Gonzalez, Manuel Gonzalez, Raffaele Gratton, Jose Guerra, Marcos Hernandez Diaz, Nauzet Hernandez, Marcella Iuzzolino, Marcello Lodi, Luca Malavolta, Jesus Maldonado, Livia Origlia, Hector Perez Ventura, Alfio Puglisi, Carlos Riverol, Luis Riverol, Jose San Juan, Salvo Scuderi, Ulf Seeman, Alessandro Sozzetti, Mauro Sozzi

Proceedings Volume 10702, 1070266 (2018) https://doi.org/10.1117/12.2312130

KEYWORDS: Calibration, Lamps, Sensors, Spectrographs, Signal to noise ratio, Infrared radiation, Spectroscopy, Signal detection, Data processing, Near infrared spectroscopy

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Proceedings Article | 6 July 2018 Paper

Paper

Bringing high-spectral resolution to VLT/SPHERE with a fiber coupling to VLT/CRIRES+

A. Vigan, G. P. P. L. Otten, E. Muslimov, K. Dohlen, M. Philipps, U. Seemann, J.-L. Beuzit, R. Dorn, M. Kasper, D. Mouillet, I. Baraffe, A. Reiners

Proceedings Volume 10702, 1070236 (2018) https://doi.org/10.1117/12.2313681

KEYWORDS: Fiber optics, Calibration, Planets, Coronagraphy, Signal to noise ratio, Exoplanets, Imaging spectroscopy, Spectrographs, Adaptive optics

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

GIARPS: commissioning and first scientific results

R. Claudi, S. Benatti, I. Carleo, A. Ghedina, J. Guerra, F. Ghinassi, A. Harutyunyan, G. Micela, E. Molinari, E. Oliva, M. Rainer, A. Tozzi, C. Baffa, A. Baruffolo, V. Biliotti, N. Buchschacher, M. Cecconi, R. Cosentino, G. Falcini, D. Fantinel, L. Fini, E. Giani, E. Gonzalez-Alvarez, M. Gonzalez, C. Gonzalez, R. Gratton, N. Hernandez, M. Iuzzolino, M. Lodi, L. Malavolta, J. Maldonado, L. Origlia, A. Puglisi, N. Sanna, J. San Juan Gómez, S. Scuderi, U. Seemann, A. Sozzetti, M. Sozzi, H. Perez Ventura, M. Hernandez Diaz, A. Galli, L. Riverol, C. Riverol

Proceedings Volume 10702, 107020Z (2018) https://doi.org/10.1117/12.2312555

KEYWORDS: Stars, Near infrared, Spectrographs, Planets, Calibration, Jupiter, Telescopes, Observatories, Exoplanets, Spectroscopy

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Proceedings Article | 5 June 2018 Paper

Paper

Si/SiO2-based filter coatings for astronomical applications in the IR spectral range

R. Schlegel, D. Gäbler, M. Schürmann, R. Follert, U. Seemann, E. Oliva, S. Schwinde

Proceedings Volume 10691, 106911E (2018) https://doi.org/10.1117/12.2311310

KEYWORDS: Refractive index, Optical coatings, Silicon, Germanium, Optical filters, Annealing, Sputter deposition

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Proceedings Article | 9 August 2016 Paper

Paper

The "+" for CRIRES: enabling better science at infrared wavelength and high spectral resolution at the ESO VLT

Reinhold Dorn, Roman Follert, Paul Bristow, Claudio Cumani, Siegfried Eschbaumer, Jason Grunhut, Andreas Haimerl, Artie Hatzes, Ulrike Heiter, Renate Hinterschuster, Derek Ives, Yves Jung, Florian Kerber, Barbara Klein, Alexis Lavail, Jean Louis Lizon, Tom Löwinger, Ignacio Molina-Conde, Belinda Nicholson, Thomas Marquart, Ernesto Oliva, Livia Origlia, Luca Pasquini, Jérôme Paufique, Nikolai Piskunov, Ansgar Reiners, Ulf Seemann, Jörg Stegmeier, Eric Stempels, Sebastien Tordo

Proceedings Volume 9908, 99080I (2016) https://doi.org/10.1117/12.2232837

KEYWORDS: Spectrographs, Spectral resolution, Infrared radiation, Sensors, Adaptive optics, Spectral resolution, Infrared radiation, Spectrographs, Calibration, Mirrors, Stars, Cameras, Polarization

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Proceedings Article | 9 August 2016 Paper

Paper

A high-resolution spectrograph for the 72cm Waltz Telescope at Landessternwarte, Heidelberg

M. Tala , P. Heeren, M. Grill, R. Harris, J. Stürmer, C. Schwab, T. Gutcke, S. Reffert, A. Quirrenbach, W. Seifert, H. Mandel, L. Geuer, L. Schäffner, G. Thimm, U. Seeman, J. Tietz, K. Wagner

Proceedings Volume 9908, 99086O (2016) https://doi.org/10.1117/12.2232730

KEYWORDS: Spectrographs, Telescopes, Calibration, Iodine cells, Sensors, Spectral resolution, Charge-coupled devices, Prisms, Mirrors, CCD image sensors

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Proceedings Article | 9 August 2016 Paper

Paper

GIANO and HARPS-N together: towards an Earth-mass detection instrument

A. Tozzi, E. Oliva, M. Iuzzolino, L. Fini, A. Puglisi, M. Sozzi, G. Falcini, L. Carbonaro, A. Ghedina, L. Mercatelli, U. Seemann, R. Claudi

Proceedings Volume 9908, 99086C (2016) https://doi.org/10.1117/12.2231898

KEYWORDS: Spectrographs, Infrared spectroscopy, Telescopes, Stars, Absorption, Calibration, Mirrors, Spectroscopy, Interfaces, Reflectivity

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Proceedings Article | 1 August 2016 Paper

Paper

Characterizing the cross dispersion reflection gratings of CRIRES+

Roman Follert, Dieter Taubert, Jörg Hollandt, Christian Monte, Ernesto Oliva, Ulf Seemann, Tom Löwinger, Heiko Anwand-Heerwart, Christof Schmidt, Reinhold Dorn, Paul Bristow, Artie Hatzes, Ansgar Reiners, Nikolai Piskunov, Ulrike Heiter, Eric Stempels, Thomas Marquart, Alexis Lavail, Claudio Cumani, Jason Grunhut, Andreas Haimerl, Renate Hinterschuster, Derek Ives, Yves Jung, Florian Kerber, Barbara Klein, Jean Louis Lizon, Ignacio Molina-Conde, Belinda Nicholson, Livia Origlia, Luca Pasquini, Jérôme Paufique, Jörg Stegmeier, Sebastien Tordo

Proceedings Volume 9912, 99122B (2016) https://doi.org/10.1117/12.2232569

KEYWORDS: Spectrographs, Infrared spectroscopy, Infrared spectroscopy, Mirrors, Sensors, Polarization, Signal detection, Polarizers, Mirror mounts, Infrared telescopes, Optical design

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Proceedings Article | 6 August 2014 Paper

Paper

Wavelength calibration from 1-5μm for the CRIRES+ high-resolution spectrograph at the VLT

U. Seemann, G. Anglada-Escude, D. Baade, P. Bristow, R. Dorn, R. Follert, D. Gojak, J. Grunhut, A. Hatzes, U. Heiter, D. Ives, P. Jeep, Y. Jung, H.-U. Käufl, F. Kerber, B. Klein, J.-L. Lizon, M. Lockhart, T. Löwinger, T. Marquart, E. Oliva, J. Paufique, N. Piskunov, Eszter Pozna, A. Reiners, A. Smette, J. Smoker, E. Stempels, E. Valenti

Proceedings Volume 9147, 91475G (2014) https://doi.org/10.1117/12.2056668

KEYWORDS: Calibration, Absorption, K band, Fabry–Perot interferometers, Spectrographs, Near infrared, Fourier transforms, Spectral resolution, Molecules, Sensors

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Proceedings Article | 6 August 2014 Paper

Paper

Characterizing U-Ne hollow cathode lamps at near-IR wavelengths for the CARMENES survey

L. Sarmiento, A. Reiners, U. Seemann, U. Lemke, J. Winkler, M. Pluto, E. Günther, A. Quirrenbach, P. Amado, I. Ribas, J. Caballero, R. Mundt, W. Seifert

Proceedings Volume 9147, 914754 (2014) https://doi.org/10.1117/12.2056501

KEYWORDS: Lamps, Uranium, Calibration, Neon, Spectrographs, Fourier transforms, Astronomy, Sensors, Spectral calibration, Velocity measurements

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Proceedings Article | 28 July 2014 Paper

Paper

Novel infrared polarimeter for the ESO CRIRES+ instrument

Matthew Lockhart, Nikolai Piskunov, Eric Stempels, Michael Escuti, Ernesto Oliva, Hans-Ulrich Käufl, Ulrike Heiter, Thomas Marquart, Guillem Anglada-Escude, Dietrich Baade, Paul Bristow, Reinhold Dorn, Roman Follert, Domingo Gojak, Jason Grunhut, Artie Hatzes, Michael Hilker, Derek Ives, Yves Jung, Florian Kerber, Barbara Klein, Jean-Louis Lizon, Tom Löwinger, Livia Origlia, Luca Pasquini, Jerome Paufique, Eszter Pozna, Ansgar Reiners, Ulf Seemann, Alain Smette, Jonathan Smoker, Elena Valenti

Proceedings Volume 9147, 91478P (2014) https://doi.org/10.1117/12.2056367

KEYWORDS: Polarimetry, Beam splitters, Infrared radiation, Polarization, Sensors, Adaptive optics, Telescopes, Prototyping, Monochromators, Infrared telescopes

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Proceedings Article | 24 July 2014 Paper

Paper

Opto-mechanical design of a new cross dispersion unit for the CRIRES+ high resolution spectrograph for the VLT

Jean Louis Lizon, Barbara Klein, Ernesto Oliva, Tom Löwinger, Guillem Anglada Escude, Dietrich Baade, Paul Bristow, Reinhold Dorn, Roman Follert, Jason Grunhut, Artie Hatzes, Ulrike Heiter, Derek Ives, Yves Jung, Florian Kerber, Matt Lockhart, Thomas Marquart, Livia Origlia, Luca Pasquini, Jerome Paufique, N. Piskunov, Eszter Pozna, Ansgar Reiners, Alain Smette, Jonathan Smoker, Ulf Seemann, Eric Stempels, Elena Valenti

Proceedings Volume 9147, 91477S (2014) https://doi.org/10.1117/12.2054800

KEYWORDS: Sensors, Cryogenics, Cameras, Lenses, Spectrographs, Interfaces, Mirrors, Optomechanical design, Optical design, Aluminum

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Proceedings Article | 24 July 2014 Paper

Paper

Concept and optical design of the cross-disperser module for CRIRES+

E. Oliva, A. Tozzi, D. Ferruzzi, L. Origlia, A. Hatzes, R. Follert, T. Löwinger, N. Piskunov, U. Heiter, M. Lockhart, T. Marquart, E. Stempels, A. Reiners, G. Anglada-Escude, Ulf Seemann, R. Dorn, P. Bristow, D. Baade, B. Delabre, D. Gojak, J. Grunhut, Barbara Klein, M. Hilker, D. Ives, Y. Jung, H.-U. Kaeufl, F. Kerber, J. Lizon, L. Pasquini, J. Paufique, Eszter Pozna, A. Smette, J. Smoker, E. Valenti

Proceedings Volume 9147, 91477R (2014) https://doi.org/10.1117/12.2054381

KEYWORDS: Cameras, Tolerancing, Mirrors, Optical filters, Spectroscopy, Optical components, Optical design, Infrared spectroscopy, Sensors, Coating

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Proceedings Article | 8 July 2014 Paper

Paper

CRIRES+: a cross-dispersed high-resolution infrared spectrograph for the ESO VLT

R. Follert, R. Dorn, E. Oliva, J. Lizon, A. Hatzes, N. Piskunov, A. Reiners, U. Seemann, E. Stempels, U. Heiter, T. Marquart, M. Lockhart, G. Anglada-Escude, T. Löwinger, D. Baade, J. Grunhut, P. Bristow, B. Klein, Y. Jung, D. Ives, F. Kerber, Eszter Pozna, J. Paufique, H. Kaeufl, L. Origlia, E. Valenti, D. Gojak, M. Hilker, L. Pasquini, A. Smette, J. Smoker

Proceedings Volume 9147, 914719 (2014) https://doi.org/10.1117/12.2054197

KEYWORDS: Spectrographs, Infrared spectroscopy, Stars, Sensors, Infrared radiation, Calibration, Adaptive optics, Planets, Magnetism, Absorption

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Showing 5 of 30 publications

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