Dr. Werner Laun Profile

Dr. Werner Laun

at Max-Planck-Institut für Astronomie

SPIE Involvement:

Author

Publications (50)

Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

Status update on the development of METIS, the mid-infrared ELT imager and spectrograph

Bernhard Brandl, Felix Bettonvil, Roy van Boekel, Adrian Glauser, Sascha Quanz, Olivier Absil, Markus Feldt, Paulo J. Garcia, Alistair Glasse, Manuel Guedel, Lucas Labadie, Michael Meyer, Eric Pantin, Shiang-Yu Wang, Hans van Winckel, Tibor Agócs, António Amorim, Thomas Bertram, Leonard Burtscher, Christian Delacroix, Werner Laun, Dirk Lesman, Gert Raskin, Chad Salo, Silvia Scheithauer, Remko Stuik, Stephen Todd, Christoph Haupt, Ralf Siebenmorgen

Proceedings Volume 12184, 1218421 (2022) https://doi.org/10.1117/12.2628331

KEYWORDS: Imaging systems, Coronagraphy, Adaptive optics, Imaging spectroscopy, Stars, Spectrographs, Sensors, Telescopes, Mirrors, Calibration

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Proceedings Article | 29 August 2022 Paper

Paper

The final design of the cryostat for ELT/METIS

E. Bouzerand, A. Glauser, M. Baer, W. Laun, P. Prantl, D. Lesman, B. Brandl, L. Odorico

Proceedings Volume 12184, 121842K (2022) https://doi.org/10.1117/12.2627322

KEYWORDS: Interfaces, Thermography, Sensors, Mid-IR, Manufacturing, Telescopes, Infrared telescopes, Control systems, Aluminum, Spectrographs

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Proceedings Article | 29 August 2022 Paper

Paper

METIS: final design of the imager sub-system

Peter Bizenberger, Harald Baumeister, Jean-Christophe Barriere, Thomas Bertram, Armin Böhm, Bernhard Brandl, M. Concepción Cárdenas Vázquez, Eduardo Chamorro, Markus Feldt, Adrian Glauser, Thomas Henning, Werner Laun, Dirk Lesman, Lars Mohr, Gert Raskin, Ralf-Rainer Rohloff, Silvia Scheithauer, Benoit Serra, Paula Stepien, Remko Stuik, Stephen Todd, Roy van Boekel

Proceedings Volume 12184, 121843K (2022) https://doi.org/10.1117/12.2630427

KEYWORDS: Zernike polynomials, Freeform optics, Optical cryogenics, Infrared detectors, Imaging systems, Sensors, Cameras, Collimators, Optics manufacturing, Cryogenics, Optical alignment, Mirrors

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Proceedings Article | 29 August 2022 Poster

Poster

Preparing for system level AIV for METIS

Remko Stuik, Ted Huang, Dirk Lesman, Bernhard Brandl, Chad Salo, Shiang-Yu Wang, Thomas Bertram, Peter Bizenberger, Werner Laun, Silvia Scheithauer, Jean-Christophe Barriere, Phil Parr-Burman, Stephen Todd, Lucas Labadie, Monika Rutowska, Mercedes Filho, Antonio Amorim, Emilie Bouzerand, Adrian Glauser

Proceedings Volume 12184, 1218438 (2022) https://doi.org/10.1117/12.2629309

KEYWORDS: Telescopes, Imaging spectroscopy, Spectroscopy, Mid-IR, System integration, Spectrometer engineering, Optical instrument design, Large telescopes, Imaging systems

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

The design of the cryostat for ELT/METIS

E. Bouzerand, A. Glauser, L. Zambila, M. Baer, W. Laun, P. Prantl, D. Lesman

Proceedings Volume 11447, 114472O (2020) https://doi.org/10.1117/12.2561535

KEYWORDS: Cryogenics, Sensors, Thermography, Interfaces, Earthquakes, Finite element methods, Structural analysis, Design for manufacturability, Manufacturing

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Proceedings Article | 27 July 2018 Presentation + Paper

Presentation + Paper

CARMENES: high-resolution spectra and precise radial velocities in the red and infrared

A. Quirrenbach, P. Amado, I. Ribas, A. Reiners, J. Caballero, W. Seifert, J. Aceituno, M. Azzaro, D. Baroch, D. Barrado, F. Bauer, S. Becerril, V. J. S. Bèjar, D. Benítez, M. Brinkmöller, C. Cardona Guillén, C. Cifuentes, J. Colomé, M. Cortés-Contreras, S. Czesla, S. Dreizler, K. Frölich, B. Fuhrmeister, D. Galadí-Enríquez, J. González Hernández, R. González Peinado, E. Guenther, E. de Guindos, H.-J. Hagen, A. Hatzes, P. Hauschildt, J. Helmling, Th. Henning, O. Herbort, L. Hernández Castaño, E. Herrero, D. Hintz, S. Jeffers, E. Johnson, E. de Juan, A. Kaminski, H. Klahr, M. Kürster, M. Lafarga, L. Sairam, M. Lampón, L. M. Lara, R. Launhardt, M. López del Fresno, M. López-Puertas, R. Luque, H. Mandel, E. G. Marfil, E. Martín, S. Martín-Ruiz, R. Mathar, D. Montes, J. Morales, E. Nagel, L. Nortmann, G. Nowak, E. Pallé, V.-M. Passegger, A. Pavlov, S. Pedraz, D. Pérez-Medialdea, M. Perger, R. Rebolo, S. Reffert, E. Rodríguez, C. Rodríguez López, A. Rosich, S. Sabotta, S. Sadegi, M. Salz, A. Sánchez-López, J. Sanz-Forcada, P. Sarkis, S. Schäfer, J. Schiller, J. H. M. M. Schmitt, P. Schöfer, A. Schweitzer, D. Shulyak, E. Solano, O. Stahl, M. Tala Pinto, T. Trifonov, M. R. Zapatero Osorio, F. Yan, M. Zechmeister, F. Abellán, M. Abril, F. Alonso-Floriano, M. Ammler-von Eiff, G. Anglada-Escudé, H. Anwand-Heerwart, B. Arroyo-Torres, Z. Berdiñas, G. Bergondy, M. Blümcke, C. del Burgo, J. Cano, J. Carro, M. Cárdenas, E. Casal, A. Claret, E. Díez-Alonso, M. Doellinger, R. Dorda, C. Feiz, M. Fernández, I. Ferro, G. Gaisné, I. Gallardo, M. Gálvez-Ortiz, A. García-Piquer, M. L. García-Vargas, R. Garrido, L. Gesa, V. Gómez Galera, E. González-Álvarez, L. González-Cuesta, S. Grohnert, U. Grözinger, J. Guàrdia, A. Guijarro, R. P. Hedrosa, D. Hermann, I. Hermelo, R. Hernández Arabí, F. Hernández Hernando, D. Hidalgo, G. Holgado, A. Huber, K. Huber, P. Huke, M. Kehr, M. Kim, R. Klein, J. Klüter, A. Klutsch, F. Labarga, N. Labiche, A. Lamert, W. Laun, F. Lázaro, U. Lemke, R. Lenzen, M. Llamas, J.-L. Lizon, N. Lodieu, M. J. López González, M. López-Morales, J. F. López Salas, J. López-Santiago, H. Magán Madinabeitia, U. Mall, L. Mancini, J. A. Marín Molina, H. Martínez-Rodríguez, D. Maroto Fernández, C. Marvin, E. Mirabet, M. E. Moreno-Raya, A. Moya, R. Mundt, V. Naranjo, J. Panduro, J. Pascual, A. Pérez-Calpena, M. A. C. Perryman, M. Pluto, A. Ramón, P. Redondo, S. Reinhart, P. Rhode, H.-W. Rix, F. Rodler, R.-R. Rohloff, E. Sánchez-Blanco, M. Sánchez Carrasco, L. Sarmiento, C. Schmidt, C. Storz, J. B. P. Strachan, J. Stürmer, J. Suárez, H. Tabernero, L. Tal-Or, S. Tulloch, R.-G. Ulbrich, G. Veredas, J. Vico Linares, M. Vidal-Dasilva, F. Vilardell, K. Wagner, J. Winkler, V. Wolthoff, W. Xu, Z. Zhao

Proceedings Volume 10702, 107020W (2018) https://doi.org/10.1117/12.2313689

KEYWORDS: Stars, Spectrographs, Planets, Calibration, Optical fibers, Telescopes, Infrared radiation, Lamps, Sodium, Astronomy

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The design and construction of CARMENES has been presented at previous SPIE conferences. It is a next-generation radial-velocity instrument at the 3.5m telescope of the Calar Alto Observatory, which was built by a consortium of eleven Spanish and German institutions. CARMENES consists of two separate échelle spectrographs covering the wavelength range from 0.52 to 1.71μm at a spec-tral resolution of R < 80,000, fed by fibers from the Cassegrain focus of the telescope. CARMENES saw “First Light” on Nov 9, 2015. During the commissioning and initial operation phases, we established basic performance data such as throughput and spectral resolution. We found that our hollow-cathode lamps are suitable for precise wavelength calibration, but their spectra contain a number of lines of neon or argon that are so bright that the lamps cannot be used in simultaneous exposures with stars. We have therefore adopted a calibration procedure that uses simultaneous star / Fabry Pérot etalon exposures in combination with a cross-calibration between the etalons and hollow-cathode lamps during daytime. With this strategy it has been possible to achieve 1-2 m/s precision in the visible and 5-10 m/s precision in the near-IR; further improvements are expected from ongoing work on temperature control, calibration procedures and data reduction. Comparing the RV precision achieved in different wavelength bands, we find a “sweet spot” between 0.7 and 0.8μm, where deep TiO bands provide rich RV information in mid-M dwarfs. This is in contrast to our pre-survey models, which predicted comparatively better performance in the near-IR around 1μm, and explains in part why our near-IR RVs do not reach the same precision level as those taken with the visible spectrograph. We are now conducting a large survey of 340 nearby M dwarfs (with an average distance of only 12pc), with the goal of finding terrestrial planets in their habitable zones. We have detected the signatures of several previously known or suspected planets and also discovered several new planets. We find that the radial velocity periodograms of many M dwarfs show several significant peaks. The development of robust methods to distinguish planet signatures from activity-induced radial velocity jitter is therefore among our priorities. Due to its large wavelength coverage, the CARMENES survey is generating a unique data set for studies of M star atmospheres, rotation, and activity. The spectra cover important diagnostic lines for activity (H alpha, Na I D1 and D2, and the Ca II infrared triplet), as well as FeH lines, from which the magnetic field can be inferred. Correlating the time series of these features with each other, and with wavelength-dependent radial velocities, provides excellent handles for the discrimination between planetary companions and stellar radial velocity jitter. These data are also generating new insight into the physical properties of M dwarf atmospheres, and the impact of activity and flares on the habitability of M star planets.

Proceedings Article | 12 July 2018 Presentation + Paper

Presentation + Paper

Status of the mid-IR ELT imager and spectrograph (METIS)

Bernhard Brandl, Olivier Absil, Tibor Agócs, Nicola Baccichet, Thomas Bertram, Felix Bettonvil, Roy van Boekel, Leonard Burtscher, Ewine van Dishoeck, Markus Feldt, Paulo J. Garcia, Alistair Glasse, Adrian Glauser, Manuel Güdel, Christoph Haupt, Matthew Kenworthy, Lucas Labadie, Werner Laun, Dirk Lesman, Eric Pantin, Sascha Quanz, Ignas Snellen, Ralf Siebenmorgen, Hans van Winckel

Proceedings Volume 10702, 107021U (2018) https://doi.org/10.1117/12.2311492

KEYWORDS: Imaging systems, Calibration, Imaging spectroscopy, Planets, Adaptive optics, Coronagraphy, Mirrors, Spectrographs, Spectroscopy, Telescopes

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

The installation and ongoing commissioning of the MATISSE mid-infrared interferometer at the ESO Very Large Telescope Observatory

B. Lopez, S. Lagarde, A. Matter, T. Agocs, F. Allouche, P. Antonelli, J.-C. Augereau, C. Bailet, P. Berio, F. Bettonvil, U. Beckmann, R. van Boekel, Y. Bresson, P. Bristow, P. Cruzalebes, M. Delbo, C. Dominik, E. Elswijk, Y. Fantei, A. Glindemann, M. Heininger, K.-H. Hofmann, M. Hogerheijde, J. Hron, W. Jaffe, G. Kroes, W. Laun, M. Lehmitz, A. Meilland, K. Meisenheimer, F. Millour, S. Morel, U. Neumann, E. Pantin, R. Petrov, S. Robbe-Dubois, D. Schertl, M. Schoeller, S. Wolf, G. Zins, T. Henning, Ph. Stee, G. Weigelt

Proceedings Volume 10701, 107010Z (2018) https://doi.org/10.1117/12.2313388

KEYWORDS: Interferometry, Spectral resolution, Sensors, Mid-IR, Visibility, Stars, Imaging systems, Interferometers, Photometry, Observatories

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Proceedings Article | 9 July 2018 Paper

Paper

MATISSE: performance in laboratory, results of AIV in Paranal, and first results on sky

S. Robbe-Dubois, S. Lagarde, P. Antonelli, B. Lopez, F. Allouche, C. Bailet, Ph. Berio, Y. Bresson, J.-M. Clausse, P. Cruzalèbes, Y. Fantei-Caujolle, A. Marcotto, A. Matter, A. Meilland, F. Millour, S. Morel, R. Petrov, S. Rousseau, A. Soulain, G. Zins, M. Lehmitz, W. Laun, T. Adler, R. Klein, T. Maurer, F. Bettonvil, E. Eldswick, U. Beckmann, M. Heininger, P. Bristow, A. Glindemann, N. Hubin, L. Jochum, Th. Rivinus, M. Schoeller, J. Beltran, P. Bourget, A. Gallenne, Th. Guerlet, X. Haubois, D. Ives, G. Jakob, A. Meister, M. Riquelme, N. Schuhler, C. Stephan, P. Toledo, K. Tristam, J. Woillez, U. Neumann, A. Chelli, F. Guitton, K. Meisenheimer, B. Pichon, A. Spang, J. Varga, Th. Henning, W. Jaffe, L. Pasquini, Ph. Stee, G. Weigelt

Proceedings Volume 10701, 107010H (2018) https://doi.org/10.1117/12.2313270

KEYWORDS: L band, Photovoltaics, Spectral resolution, Visibility, Sensors, Interferometry, Astatine, Spatial filters, Telescopes, Calibration

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MATISSE (Multi AperTure mid-Infrared SpectroScopic Experiment) is the spectro-interferometer for the VLTI of the European Southern Observatory (ESO), operating in the L-, M- and N- spectral bands, and combining up to four beams from the unit or the auxiliary telescopes (UTs or ATs). MATISSE will offer new breakthroughs in the study of circumstellar environments by allowing the mapping of the material distribution, the gas and essentially the dust. The instrument consists in a warm optical system (WOP) accepting four beams from the VLTI and relaying them after a spectral splitting to cold optical benches (COB) located in two separate cryostats, one in L-M- band, and one in N-band. The test plan of the complete instrument has been conducted at the Observatoire de la Côte d’Azur in order to confirm the compliance of the performance with the high-level requirements. MATISSE has successfully passed the Preliminary Acceptance in Europe the 12th September 2017. Following this result, ESO gave approval for the instrument to be shipped to Paranal. The Alignment, Integration and Verification phase was conducted until end of February 2018, at the end of which first observations on sky have been performed to test the operations with the VLTI and to obtain first stellar light. The two first runs of the commissioning followed, respectively in March and in May 2018. It has the goal to optimize the MATISSE-VLTI communication, the acquisition procedures and the interface parameters. The observations were performed on bright L-M- and N- stars, with four ATs located on short baselines and UTs. The limit magnitudes will be deduced.

This paper reports on the performance of the instrument measured in laboratory (results of test plan in Nice and AIV in Paranal) in terms of spectral coverage, dispersion laws and spectral resolutions, and transfer function analysis: instrumental contrast, visibility accuracy, accuracy of the differential phase, of the closure-phase and of the differential visibility. It also provides results of the first tests on sky and the planning of the on-going commissioning.

Proceedings Article | 17 November 2016 Paper

Paper

CARMENES: an overview six months after first light

A. Quirrenbach, P. Amado, J. Caballero, R. Mundt, A. Reiners, I. Ribas, W. Seifert, M. Abril, J. Aceituno, F. Alonso-Floriano, H. Anwand-Heerwart, M. Azzaro, F. Bauer, D. Barrado, S. Becerril, V. J. Bejar, D. Benitez, Z. Berdinas, M. Brinkmöller, M. Cardenas, E. Casal, A. Claret, J. Colomé, M. Cortes-Contreras, S. Czesla, M. Doellinger, S. Dreizler, C. Feiz, M. Fernandez, I. Ferro, B. Fuhrmeister, D. Galadi, I. Gallardo, M. Gálvez-Ortiz, A. Garcia-Piquer, R. Garrido, L. Gesa, V. Gómez Galera, J. González Hernández, R. Gonzalez Peinado, U. Grözinger, J. Guàrdia, E. Guenther, E. de Guindos, H.-J. Hagen, A. Hatzes, P. Hauschildt, J. Helmling, T. Henning, D. Hermann, R. Hernández Arabi, L. Hernández Castaño, F. Hernández Hernando, E. Herrero, A. Huber, K. Huber, P. Huke, S. Jeffers, E. de Juan, A. Kaminski, M. Kehr, M. Kim, R. Klein, J. Klüter, M. Kürster, M. Lafarga, L. Lara, A. Lamert, W. Laun, R. Launhardt, U. Lemke, R. Lenzen, M. Llamas, M. Lopez del Fresno, M. López-Puertas, J. López-Santiago, J. Lopez Salas, H. Magan Madinabeitia, U. Mall, H. Mandel, L. Mancini, J. Marin Molina, D. Maroto Fernández, E. Martín, S. Martín-Ruiz, C. Marvin, R. Mathar, E. Mirabet, D. Montes, J. Morales, R. Morales Muñoz, E. Nagel, V. Naranjo, G. Nowak, E. Palle, J. Panduro, V. Passegger, A. Pavlov, S. Pedraz, E. Perez, D. Pérez-Medialdea, M. Perger, M. Pluto, A. Ramón , R. Rebolo, P. Redondo, S. Reffert, S. Reinhart, P. Rhode, H.-W. Rix, F. Rodler, E. Rodríguez, C. Rodríguez López, R. Rohloff, A. Rosich, M Sanchez Carrasco, J. Sanz-Forcada, P. Sarkis, L. Sarmiento, S. Schäfer, J. Schiller, C. Schmidt, J. H. M. M. Schmitt, P. Schöfer, A. Schweitzer, D. Shulyak, E. Solano, O. Stahl, C. Storz, H. Tabernero, M. Tala, L. Tal-Or, R.-G. Ulbrich, G. Veredas, J. I. Vico Linares, F. Vilardell, K. Wagner, J. Winkler, M.-R. Zapatero Osorio, M. Zechmeister, M. Ammler-von Eiff, G. Anglada-Escudé, C. del Burgo, M. Garcia-Vargas, A. Klutsch, J.-L. Lizon, M. Lopez-Morales, A. Ofir, A. Pérez-Calpena, M. A. C. Perryman, E. Sánchez-Blanco , J. B. P. Strachan, J. Stürmer, J. Suárez, T. Trifonov, S. Tulloch, W. Xu

Proceedings Volume 9908, 990812 (2016) https://doi.org/10.1117/12.2231880

KEYWORDS: Spectrographs, Stars, Calibration, Planets, Telescopes, Observatories, Control systems, Data archive systems, Fabry–Perot interferometers, Lamps

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Proceedings Article | 4 August 2016 Paper

Paper

MATISSE: alignment, integration, and test phase first results

F. Allouche, S. Robbe-Dubois, S. Lagarde, P. Cruzalèbes, P. Antonelli, Y. Bresson, Y. Fantei-Caujolle, A. Marcotto, S. Morel, U. Beckmann, F. Bettonvil, Ph. Berio, M. Heininger, M. Lehmitz, T. Agocs, R. Brast, E. Elswijk, D. Ives, K. Meixner, W. Laun, M. Mellein, U. Neumann, C. Bailet, J.-M. Clausse, A. Matter, A. Meilland, F. Millour, R. G. Petrov, M. Accardo, P. Bristow, R. Frahm, A. Glindemann, J.-C. Gonzáles Herrera, J.-L. Lizon, M. Schöller, U. Graser, W. Jaffe, B. Lopez

Proceedings Volume 9907, 99070C (2016) https://doi.org/10.1117/12.2232414

KEYWORDS: Interferometry, Beam splitters, Sensors, Mid-IR, Telescopes, Mid-IR, Mirrors, Optical alignment, L band, Spectral resolution, Calibration

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MATISSE (Multi AperTure mid-Infrared SpectroScopic Experiment) is the spectro-interferometer for the VLTI of the European Southern Observatory, operating in near and mid-infrared, and combining up to four beams from the unit or the auxiliary telescopes. MATISSE will offer new breakthroughs in the study of circumstellar environments by allowing the multispectral mapping of the material distribution, the gas and essentially the dust.

The instrument consists in a warm optical system (WOP) accepting four optical beams and relaying them after a dichroic splitting (for the L and M- and N- spectral bands) to cold optical benches (COB) located in two separate cryostats. The Observatoire de la Côte d’Azur is in charge of the WOP providing the spectral band separation, optical path equalization and modulation, pupil positioning, beam anamorphosis, beam commutation, and calibration. NOVA-ASTRON is in charge of the COB providing the functions of beam selection, reduction of thermal background emission, spatial filtering, pupil transfer, photometry and interferometry splitting, additional beam anamorphosis, spectral filtering, polarization selection, image dispersion, and image combination. The Max Planck Institut für Radio Astronomie is in charge of the operation and performance validation of the two detectors, a HAWAII-2RG from Teledyne for the L- and M- bands and a Raytheon AQUARIUS for the N-band. Both detectors are provided by ESO. The Max Planck Institut für Astronomie is in charge of the electronics and the cryostats for which the requirements on space limitations and vibration stability resulted on very specific and stringent decisions on the design.

The integration and test of the COB: the two cryogenic systems, including the cold benches and the detectors, have been conducted at MPIA in parallel with the integration of the WOP at OCA. At the end of 2014, the complete instrument was integrated at OCA. Following this integration, a period of interface and alignment between the COB and the WOP took place resulting in the first interference fringes in the L-band during summer 2015 and the first interference fringes in the N-ban in March 2016.

After a period of optimization of both the instrument reliability and the environmental working conditions, the test plan is presently being conducted in order to evaluate the complete performance of the instrument and its compliance with the high-level requirements. The present paper gives the first results of the alignment, integration and test phase of the MATISSE instrument.

Proceedings Article | 4 August 2016 Paper

Paper

An overview of the mid-infrared spectro-interferometer MATISSE: science, concept, and current status

A. Matter, B. Lopez, P. Antonelli, M. Lehmitz, F. Bettonvil, U. Beckmann, S. Lagarde, W. Jaffe, R. Petrov, P. Berio, F. Millour, S. Robbe-Dubois, A. Glindemann, P. Bristow, M. Schoeller, T. Lanz, T. Henning, G. Weigelt, M. Heininger, S. Morel, P. Cruzalebes, K. Meisenheimer, R. Hofferbert, S. Wolf, Y. Bresson, T. Agocs, F. Allouche, J.-C. Augereau, G. Avila, C. Bailet, J. Behrend, G. van Belle, J.-P. Berger, R. van Boekel, P. Bourget, R. Brast, J.-M. Clausse, C. Connot, R. Conzelmann, G. Csepany, W. Danchi, M. Delbo, C. Dominik, A. van Duin, E. Elswijk, Y. Fantei, G. Finger, A. Gabasch, F. Gonté, U. Graser, F. Guitton, S. Guniat, M. De Haan, P. Haguenauer, H. Hanenburg, K.-H. Hofmann, M. Hogerheijde, R. ter Horst, J. Hron, C Hummel, J. Isderda, D. Ives, G. Jakob, A. Jasko, P. Jolley, S. Kiraly, J. Kragt, T. Kroener, G. Kroes, S. Kuindersma, L. Labadie, W. Laun, C. Leinert, J.-L. Lizon, C. Lucuix, A. Marcotto, F. Martinache, G. Martinot-Lagarde, N. Mauclert, L. Mehrgan, A. Meilland, M. Mellein, S. Menardi, A. Merand, U. Neumann, E. Nussbaum, S. Ottogalli, R. Palsa, J. Panduro, E. Pantin, I. Percheron, T. Phan Duc, J.-U. Pott, E. Pozna, R. Roelfsema, G. Rupprecht, D. Schertl, C. Schmidt, M. Schuil, A. Spang, J. Stegmeier, N. Tromp, F. Vakili, M. Vannier, K. Wagner, L. Venema, J. Woillez

Proceedings Volume 9907, 99070A (2016) https://doi.org/10.1117/12.2233052

KEYWORDS: Mid-IR, Interferometry, Telescopes, Signal detection, Sensors, Stars, Spectral resolution, Fourier transforms, L band, Cameras

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Proceedings Article | 27 July 2016 Paper

Paper

CIAO: wavefront sensors for GRAVITY

Silvia Scheithauer, Wolfgang Brandner, Casey Deen, Tobias Adler, Henri Bonnet, Pierre Bourget, Fanny Chemla, Yann Clenet, Francoise Delplancke, Monica Ebert, Frank Eisenhauer, Michael Esselborn, Gert Finger, Eric Gendron, Adrian Glauser, Frederic Gonte, Thomas Henning, Stefan Hippler, Armin Huber, Zoltan Hubert, Gerd Jakob, Lieselotte Jochum, Laurent Jocou, Sarah Kendrew, Ralf Klein, Johann Kolb, Martin Kulas, Werner Laun, Rainer Lenzen, Marcus Mellein, Eric Müller, Javier Moreno-Ventas, Udo Neumann, Sylvain Oberti, Jürgen Ott, Laurent Pallanca, Johana Panduro, Jose Ramos, Miguel Riquelme, Ralf-Rainer Rohloff, Gérard Rousset, Nicolas Schuhler, Marcos Suarez, Gerard Zins

Proceedings Volume 9909, 99092L (2016) https://doi.org/10.1117/12.2232997

KEYWORDS: Wavefront sensors, Telescopes, Adaptive optics, Observatories, Infrared telescopes, Stars, Infrared sensors, Wavefront sensors, Infrared telescopes, Infrared radiation, Sensors, Mirrors

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Proceedings Article | 7 August 2014 Paper

Paper

Integration and bench testing for the GRAVITY Coudé IR adaptive optics (CIAO) wavefront sensor

C. Deen, P. Yang, A. Huber, M. Suarez-Valles, S. Hippler, W. Brandner, E. Gendron, Y. Clénet, S. Kendrew, A. Glauser, R. Klein, W. Laun, R. Lenzen, U. Neumann, J. Panduro, J. Ramos, R.-R. Rohloff, A. Salzinger, N. Zimmerman, T. Henning, K. Perraut, G. Perrin, C. Straubmeier, A. Amorim, F. Eisenhauer

Proceedings Volume 9148, 91482T (2014) https://doi.org/10.1117/12.2055127

KEYWORDS: Adaptive optics, Sensors, Wavefront sensors, Computing systems, Mirrors, Real-time computing, Infrared radiation, Infrared sensors, Deformable mirrors, Telescopes

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Proceedings Article | 24 July 2014 Paper

Paper

MATISSE status report and science forecast

B. Lopez, S. Lagarde, W. Jaffe, R. Petrov, M. Schöller, P. Antonelli, U. Beckman, Ph. Bério, F. Bettonvil, U. Graser, F. Millour, S. Robbe-Dubois, L. Venema, S. Wolf, P. Bristow, A. Glindemann, J.-C. Gonzalez, Th. Lanz, T. Henning, G. Weigelt, T. Agócs, J.-C. Augereau, G. Ávila, C. Bailet, J. Behrend, J.-P. Berger, Roy von Boekel, S. Bonhomme, P. Bourget, R. Brast, Y. Bresson, J. Clausse, O. Chesneau, G. Csépány, C. Connot, A. Crida, W. Danchi, M. Delbo , F. Delplancke, C. Dominik, M. Dugué, E. Elswijk, Y. Fanteï, G. Finger, A. Gabasch, P. Girard, V. Girault, P. Gitton, A. Glazenborg, F. Gonté, F. Guitton, S. Guniat, M. De Haan, P. Haguenauer, H. Hanenburg, M. Heininger, K.-H. Hofmann, M. Hogerheijde, R. ter Horst, J. Hron, Y. Hughes, D. Ives, G. Jakob, A. Jaskó, P. Jolley, J. Kragt, R. Köhler, T. Kroener, G. Kroes, L. Labadie, W. Laun, M. Lehmitz, Ch. Leinert, J. Lizon, Ch. Lucuix, A. Marcotto, F. Martinache, A. Matter, G. Martinot-Lagarde, N. Mauclert, L. Mehrgan, A. Meilland, M. Mellein, S. Ménardi, J. Menut, K. Meisenheimer, S. Morel, L. Mosoni, R. Navarro, U. Neumann, E. Nussbaum, S. Ottogalli, R. Palsa, J. Panduro, E. Pantin, I. Percheron, T. Phan Duc, J.-U. Pott, Eszter Pozna, F. Przygodda, A. Richichi, F. Rigal, G. Rupprecht, D. Schertl, J. Stegmeier, L. Thiam, N. Tromp, M. Vannier, F. Vakili, G. van Belle, K. Wagner, J. Woillez

Proceedings Volume 9146, 91460M (2014) https://doi.org/10.1117/12.2056419

KEYWORDS: Interferometry, Sensors, Mid-IR, Stars, Telescopes, Visibility, Planets, Spectral resolution, Photometry, Fourier transforms

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Proceedings Article | 10 July 2014 Paper

Paper

CARMENES instrument overview

A. Quirrenbach, P. Amado, J. Caballero, R. Mundt, A. Reiners, I. Ribas, W. Seifert, M. Abril, J. Aceituno, F. J. Alonso-Floriano, M. Ammler-von Eiff, R. Antona Jiménez, H. Anwand-Heerwart, M. Azzaro, F. Bauer, D. Barrado, S. Becerril, V. J. Béjar, D. Benítez, Z. Berdiñas, M. Cárdenas, E. Casal, A. Claret, J. Colomé, M. Cortés-Contreras, S. Czesla, M. Doellinger, S. Dreizler, C. Feiz, M. Fernández, D. Galadí, M. Gálvez-Ortiz, A. García-Piquer, M. García-Vargas, R. Garrido, L. Gesa, V. Gómez Galera, E. González Álvarez, J. González Hernández, U. Grözinger, J. Guàrdia, E. Guenther, E. de Guindos, J. Gutiérrez-Soto, H.-J. Hagen, A. Hatzes, P. Hauschildt, J. Helmling, T. Henning, D. Hermann, L. Hernández Castaño, E. Herrero, D. Hidalgo, G. Holgado, A. Huber, K. Huber, S. Jeffers, V. Joergens, E. de Juan, M. Kehr, R. Klein, M. Kürster, A. Lamert, S. Lalitha, W. Laun, U. Lemke, R. Lenzen, Mauro López del Fresno, B. López Martí, J. López-Santiago, U. Mall, H. Mandel, E. Martín, S. Martín-Ruiz, H. Martínez-Rodríguez, C. Marvin, R. Mathar, E. Mirabet, D. Montes, R. Morales Muñoz, A. Moya, V. Naranjo, A. Ofir, R. Oreiro, E. Pallé, J. Panduro, V.-M. Passegger, A. Pérez-Calpena, D. Pérez Medialdea, M. Perger, M. Pluto, A. Ramón, R. Rebolo, P. Redondo, S. Reffert, S. Reinhardt, P. Rhode, H.-W. Rix, F. Rodler, E. Rodríguez, C. Rodríguez-López, E. Rodríguez-Pérez, R.-R. Rohloff, A. Rosich, E. Sánchez-Blanco, M. Sánchez Carrasco, J. Sanz-Forcada, L. Sarmiento, S. Schäfer, J. Schiller, C. Schmidt, J. H. M. M. Schmitt, E. Solano, O. Stahl, C. Storz, J. Stürmer, J. Suárez, R. Ulbrich, G. Veredas, K. Wagner, J. Winkler, M. Zapatero Osorio, M. Zechmeister, F. Abellán de Paco, G. Anglada-Escudé, C. del Burgo, A. Klutsch, J. Lizon, M. López-Morales, J. Morales, M. A. C. Perryman, S. Tulloch, W. Xu

Proceedings Volume 9147, 91471F (2014) https://doi.org/10.1117/12.2056453

KEYWORDS: Spectrographs, Optical fibers, Lamps, Stars, Telescopes, Calibration, Planets, Sensors, Visible radiation, Exoplanets

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This paper gives an overview of the CARMENES instrument and of the survey that will be carried out with it during the first years of operation. CARMENES (Calar Alto high-Resolution search for M dwarfs with Exoearths with Near-infrared and optical Echelle Spectrographs) is a next-generation radial-velocity instrument under construction for the 3.5m telescope at the Calar Alto Observatory by a consortium of eleven Spanish and German institutions. The scientific goal of the project is conducting a 600-night exoplanet survey targeting ~ 300 M dwarfs with the completed instrument. The CARMENES instrument consists of two separate echelle spectrographs covering the wavelength range from 0.55 to 1.7 μm at a spectral resolution of R = 82,000, fed by fibers from the Cassegrain focus of the telescope. The spectrographs are housed in vacuum tanks providing the temperature-stabilized environments necessary to enable a 1 m/s radial velocity precision employing a simultaneous calibration with an emission-line lamp or with a Fabry-Perot etalon. For mid-M to late-M spectral types, the wavelength range around 1.0 μm (Y band) is the most important wavelength region for radial velocity work. Therefore, the efficiency of CARMENES has been optimized in this range. The CARMENES instrument consists of two spectrographs, one equipped with a 4k x 4k pixel CCD for the range 0.55 - 1.05 μm, and one with two 2k x 2k pixel HgCdTe detectors for the range from 0.95 - 1.7μm. Each spectrograph will be coupled to the 3.5m telescope with two optical fibers, one for the target, and one for calibration light. The front end contains a dichroic beam splitter and an atmospheric dispersion corrector, to feed the light into the fibers leading to the spectrographs. Guiding is performed with a separate camera; on-axis as well as off-axis guiding modes are implemented. Fibers with octagonal cross-section are employed to ensure good stability of the output in the presence of residual guiding errors. The fibers are continually actuated to reduce modal noise. The spectrographs are mounted on benches inside vacuum tanks located in the coud´e laboratory of the 3.5m dome. Each vacuum tank is equipped with a temperature stabilization system capable of keeping the temperature constant to within ±0.01°C over 24 hours. The visible-light spectrograph will be operated near room temperature, while the near-IR spectrograph will be cooled to ~ 140 K. The CARMENES instrument passed its final design review in February 2013. The MAIV phase is currently ongoing. First tests at the telescope are scheduled for early 2015. Completion of the full instrument is planned for the fall of 2015. At least 600 useable nights have been allocated at the Calar Alto 3.5m Telescope for the CARMENES survey in the time frame until 2018. A data base of M stars (dubbed CARMENCITA) has been compiled from which the CARMENES sample can be selected. CARMENCITA contains information on all relevant properties of the potential targets. Dedicated imaging, photometric, and spectroscopic observations are underway to provide crucial data on these stars that are not available in the literature.

Proceedings Article | 8 July 2014 Paper

Paper

LINC-NIRVANA: Diffraction limited optics in cryogenic environment

Peter Bizenberger, Harald Baumeister, Patrick Fopp, Tom Herbst, Werner Laun, Lars Mohr, Javier Moreno-Ventas

Proceedings Volume 9147, 91474B (2014) https://doi.org/10.1117/12.2057473

KEYWORDS: Mirrors, Point spread functions, Telescopes, Interferometry, Sensors, Optics manufacturing, Cryogenics, Diffraction, Charge-coupled devices, Wavefronts

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Proceedings Article | 8 July 2014 Paper

Paper

PANIC in the lab: status before commissioning

Bernhard Dorner, Armin Huber, M. Concepcion Cárdenas Vázquez, Irene Ferro Rodriguez, Peter Bizenberger, Vianak Naranjo, Johana Panduro, Ulrich Mall, Matthias Alter, Richard Mathar, Clemens Storz, Ralf-Rainer Rohloff, Patrick Fopp, Werner Laun, José Miguel Ibáñez, Antonio García Segura, Víctor Terrón, Josef Fried, Matilde Fernández, Julio Rodríguez Gómez, Klaus Meisenheimer

Proceedings Volume 9147, 91473X (2014) https://doi.org/10.1117/12.2054922

KEYWORDS: Sensors, Telescopes, Interfaces, Optical alignment, Optical components, Tolerancing, Mirrors, Optical filters, Optical benches, Staring arrays

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SPIE Journal Paper | 6 February 2013

LINC-NIRVANA for the large binocular telescope: setting up the world’s largest near infrared binoculars for astronomy

Ralph Hofferbert, Harald Baumeister, Thomas Bertram, Jürgen Berwein, Peter Bizenberger, Armin Böhm, Michael Böhm, José Luis Borelli, Matthieu Brangier, Florian Briegel, Albert Conrad, Fulvio De Bonis, Roman Follert, Thomas Herbst, Armin Huber, Frank Kittmann, Martin Kürster, Werner Laun, Ulrich Mall, Daniel Meschke, Lars Mohr, Vianak Naranjo, Aleksei Pavlov, Jorg-Uwe Pott, Hans-Walter Rix, Ralf-Rainer Rohloff, Eva Schinnerer, Clemens Storz, Jan Trowitzsch, Zhaojun Yan, Xianyu Zhang, Andreas Eckart, Matthew Horrobin, Steffen Rost, Christian Straubmeier, Imke Wank, Jens Zuther, Udo Beckmann, Claus Connot, Matthias Heininger, Karl-Heinz Hofmann, Tim Kroner, Edmund Nussbaum, Dieter Schertl, Gerd Weigelt, Maria Bergomi, Alessandro Brunelli, Marco Dima, Jacopo Farinato, Demetrio Magrin, Luca Marafatto, Roberto Ragazzoni, Valentina Viotto, Carmelo Arcidiacono, Giovanni Bregoli, Paolo Ciliegi, Giuseppe Cosentino, Emiliano Diolaiti, Italo Foppiani, Matteo Lombini, Laura Schreiber, Francesco D'Alessio, Gianluca Li Causi, Dario Lorenzetti, Fabrizio Vitali, Mario Bertero, Patrizia Boccacci, Andrea La Camera

OE, Vol. 52, Issue 08, 081602, (February 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.8.081602

KEYWORDS: Telescopes, Sensors, Mirrors, Interferometry, Near infrared, Adaptive optics, Interfaces, Cameras, Optical engineering, Astronomy

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Proceedings Article | 24 October 2012 Paper

Paper

LINC-NIRVANA for the LBT: setting up the world's largest NIR binoculars for astronomy

Ralph Hofferbert, Harald Baumeister, Thomas Bertram, Jürgen Berwein, Peter Bizenberger, Armin Böhm, Michael Böhm, José Luis Borelli, Matthieu Brangier, Florian Briegel, Albert Conrad, Fulvio De Bonis, Roman Follert, Tom Herbst, Armin Huber, Frank Kittmann, Martin Kürster, Werner Laun, Ulrich Mall, Daniel Meschke, Lars Mohr, Vianak Naranjo, Aleksei Pavlov, Jörg-Uwe Pott, Hans-Walter Rix, Ralf-Rainer Rohloff, Eva Schinnerer, Clemens Storz, Jan Trowitzsch, Zhaojun Yan, Xianyu Zhang, Andreas Eckart, Matthew Horrobin, Steffen Rost, Christian Straubmeier, Imke Wank, Jens Zuther, Udo Beckmann, Claus Connot, Matthias Heininger, Karl-Heinz Hofmann, Tim Kröner, Eddy Nussbaum, Dieter Schertl, Gerd Weigelt, Maria Bergomi, Alessandro Brunelli, Marco Dima, Jacopo Farinato, Demetrio Magrin, Luca Marafatto, Roberto Ragazzoni, Valentina Viotto, Carmelo Arcidiacono, Giovanni Bregoli, Paolo Ciliegi, Guiseppe Cosentino, Emiliano Diolaiti, Italo Foppiani, Matteo Lombini, Laura Schreiber, Francesco D'Alessio, Gianluca Li Causi, Dario Lorenzetti, Fabrizio Vitali, Mario Bertero, Patrizia Boccacci, Andrea La Camera

Proceedings Volume 8511, 85110A (2012) https://doi.org/10.1117/12.928284

KEYWORDS: Telescopes, Mirrors, Sensors, Interferometry, Cameras, Adaptive optics, Near infrared, Stars, Imaging systems, Interfaces

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Proceedings Article | 5 October 2012 Paper

Paper

CARMENES. I: instrument and survey overview

Andreas Quirrenbach, Pedro Amado, Walter Seifert, Miguel Sánchez Carrasco, Holger Mandel, Jose Caballero, Reinhard Mundt, Ignasi Ribas, Ansgar Reiners, Miguel Abril, Jesus Aceituno, Javier Alonso-Floriano, Matthias Ammler-von Eiff, Guillem Anglada-Escude, Regina Antona Jiménez, Heiko Anwand-Heerwart, David Barrado y Navascués, Santiago Becerril, Victor Bejar, Daniel Benitez, Concepcion Cardenas, Antonio Claret, Josep Colome, Miriam Cortés-Contreras, Stefan Czesla, Carlos del Burgo, Michaela Doellinger, R. Dorda, Stefan Dreizler, Carmen Feiz, Matilde Fernandez, David Galadi, Rafael Garrido, Jonay González Hernández, Josep Guardia, Eike Guenther, Enrique de Guindos, Juan Gutiérrez-Soto, Hans Hagen, Artie Hatzes, Peter Hauschildt, Jens Helmling, Thomas Henning, Enrique Herrero, Armin Huber, Klaus Huber, Sandra Jeffers, Viki Joergens, Enrique de Juan, M. Kehr, Alexis Klutsch, Martin Kürster, S. Lalitha, Werner Laun, Ulrike Lemke, Rainer Lenzen, Jean-Louis Lizon, Mauro López del Fresno, Mercedes López-Morales, Javier López-Santiago, Ulrich Mall, Eduardo Martin, Susana Martín-Ruiz, Eduard Mirabet, David Montes, Juan Carlos Morales, Rafael Morales Muñoz, Andres Moya, Vianak Naranjo, Raquel Oreiro, David Pérez Medialdea, Michael Pluto, Ovidio Rabaza, Alejandro Ramon, Rafael Rebolo, Sabine Reffert, Petra Rhode, Hans-Walter Rix, Florian Rodler, Eloy Rodríguez, Cristina Rodríguez López, Emilio Rodríguez Pérez, A. Rodriguez Trinidad, Ralf-Reiner Rohloff, Ernesto Sánchez-Blanco, Jorge Sanz-Forcada, Sebastian Schäfer, Jörg Schiller, Christof Schmidt, Jürgen Schmitt, Enrique Solano, Otmar Stahl, Clemens Storz, Julian Stürmer, Juan Carlos Suarez, Ulrich Thiele, Rainer Ulbrich, Manuela Vidal-Dasilva, Karl Wagner, Johannes Winkler, Wenli Xu, Maria Rosa Zapatero Osorio, Mathias Zechmeister

Proceedings Volume 8446, 84460R (2012) https://doi.org/10.1117/12.925164

KEYWORDS: Stars, Lamps, Planets, Spectrographs, Optical fibers, Calibration, Sensors, Telescopes, Exoplanets, Near infrared

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Proceedings Article | 24 September 2012 Paper

Paper

LINC-NIRVANA, integration of an interferometric and cryogenic camera: first verification results

Peter Bizenberger, Harald Baumeister, Armin Böhm, Tom Herbst, Armin Huber, Werner Laun, Ulrich Mall, Lars Mohr, Vianak Naranjo, Clemens Storz, Jan Trowitzsch

Proceedings Volume 8446, 844647 (2012) https://doi.org/10.1117/12.926990

KEYWORDS: Sensors, Cryogenics, Mirrors, Cameras, Telescopes, Interferometry, Diffraction, Optomechanical design, Adaptive optics, Spatial resolution

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Proceedings Article | 24 September 2012 Paper

Paper

The GRAVITY Coudé Infrared Adaptive Optics (CIAO) system for the VLT Interferometer

S. Kendrew, S. Hippler, W. Brandner, Y. Clénet, C. Deen, E. Gendron, A. Huber, R. Klein, W. Laun, R. Lenzen, V. Naranjo, Udo Neumann, J. Ramos, R.-R. Rohloff, P. Yang, F. Eisenhauer, A. Amorim, K. Perraut, G. Perrin, C. Straubmeier, Enrico Fedrigo, Marcos Suarez Valles

Proceedings Volume 8446, 84467W (2012) https://doi.org/10.1117/12.926558

KEYWORDS: Adaptive optics, Wavefront sensors, Sensors, Stars, Telescopes, Monte Carlo methods, Interferometers, Infrared radiation, Wavefronts, Near infrared

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Proceedings Article | 13 September 2012 Paper

Paper

LINC-NIRVANA Pathfinder: testing the next generation of wave front sensors at LBT

Albert Conrad, Carmelo Arcidiacono, Harald Baumeister, Maria Bergomi, Thomas Bertram, Juergen Berwein, Chris Biddick, Peter Bizenberger, Matthieu Brangier, Florian Briegel, Alessandro Brunelli, Joar Brynnel, Lorenzo Busoni, Norm Cushing, Fulvio De Bonis, Michele De La Pena, Simone Esposito, Jacopo Farinato, Luca Fini, Richard Green, Tom Herbst, Ralph Hofferbert, Frank Kittmann, Martin Kuerster, Werner Laun, Daniel Meschke, Lars Mohr, Aleksei Pavlov, Jorg-Uwe Pott, Alfio Puglisi, Roberto Ragazzoni, Andrew Rakich, Ralf-Rainer Rohloff, Jan Trowitzsch, Valentina Viotto, Xianyu Zhang

Proceedings Volume 8447, 84470V (2012) https://doi.org/10.1117/12.925650

KEYWORDS: Stars, Adaptive optics, Wavefronts, Calibration, Charge-coupled devices, Mirrors, Cameras, Infrared cameras, CCD cameras, Wavefront sensors

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Proceedings Article | 12 September 2012 Paper

Paper

Perspective of imaging in the mid-infrared at the Very Large Telescope Interferometer

B. Lopez, S. Lagarde, P. Antonelli, W. Jaffe, R. Petrov, L. Venema, Sylvie Robbe-Dubois, F. Bettonvil, P. Berio, R. Navarro, U. Graser, U. Beckman, G. Weigelt, F. Vakili, T. Henning, J.-C. Gonzales, S. Wolf, C. Bailet, J. Behrend, Y. Bresson, O. Chesneau, J. Clausse, C. Connot, M. Dugué, Y. Fantei, E. Elswijk, H. Hanenburg, K. Hofmann, M. Heininger, R. ter Horst, J. Hron, J. Kragt, N. Tromp, T. Agocs, G. Kroes, W. Laun, Ch. Leinert, M. Lehmitz, A. Matter, J. Menut, F. Millour, U. Neumann, E. Nussbaum, S. Ottogalli, J.-U. Pott, F. Rigal, A. Roussel, D. Schertl, M. Vannier, K. Wagner, M. Mellein, T. Kroener, N. Mauclert, P. Girard, G. Lagarde, L. Mosoni, A. Jasko, A. Glindemann, T. Phan Duc, G. Finger, D. Ives, G. Jakob, I. Percheron, G. Avila, R. Palsa, Eszter Pozna, J. Lizon, Ch. Lucuix, S. Menardi, P. Haguenauer, P. Gitton, S. Morel, F. Gonté, P. Jolley, G. Rupprecht, P. Bourget, F. Delplancke, L. Mehrgan, J. Stegmeier, G. van Belle, A. Richichi, A. Moorwood

Proceedings Volume 8445, 84450R (2012) https://doi.org/10.1117/12.926238

KEYWORDS: Interferometry, Sensors, Visibility, Mid-IR, L band, Telescopes, Spectral resolution, Image restoration, Interferometers, Photometry

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Proceedings Article | 22 July 2010 Open Access

Open Access

Paper

GRAVITY: a four telescope beam combiner instrument for the VLTI

S. Gillessen, F. Eisenhauer, G. Perrin, W. Brandner, C. Straubmeier, K. Perraut, A. Amorim, M. Schöller, C. Araujo-Hauck, H. Bartko, H. Baumeister, J.-P. Berger, P. Carvas, F. Cassaing, F. Chapron, E. Choquet, Y. Clenet, C. Collin, A. Eckart, P. Fedou, S. Fischer, E. Gendron, R. Genzel, P. Gitton, F. Gonte, A. Gräter, P. Haguenauer, M. Haug, X. Haubois, T. Henning, S. Hippler, R. Hofmann, L. Jocou, S. Kellner, P. Kervella, R. Klein, N. Kudryavtseva, S. Lacour, V. Lapeyrere, W. Laun, P. Lena, R. Lenzen, J. Lima, D. Moratschke, D. Moch, T. Moulin, V. Naranjo, U. Neumann, A. Nolot, T. Paumard, O. Pfuhl, S. Rabien, J. Ramos, J. Rees, R.-R. Rohloff, D. Rouan, G. Rousset, A. Sevin, M. Thiel, K. Wagner, M. Wiest, S. Yazici, D. Ziegler

Proceedings Volume 7734, 77340Y (2010) https://doi.org/10.1117/12.856689

KEYWORDS: Stars, Adaptive optics, Telescopes, Sensors, Interferometry, Integrated optics, Spectroscopy, Wavefront sensors, Near infrared, Metrology

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Proceedings Article | 20 July 2010 Paper

Paper

Characterization and performance of the 4k x 4k Hawaii-2RG Mosaic for PANIC

Vianak Naranjo, Ulrich Mall, José Ricardo Ramos, Clemens Storz, Karl Wagner, Matthias Alter, Harald Baumeister, Peter Bizenberger, M. C. Cárdenas, Matilde Fernández, Josef Fried, Antonio García Segura, Jens Helmling, Armin Huber, J. Ibáñez Mengual, Werner Laun, Rainer Lenzen, Julio Rodríguez Gómez, Ralf-Rainer Rohloff

Proceedings Volume 7742, 77421R (2010) https://doi.org/10.1117/12.855996

KEYWORDS: Sensors, Electronics, Interference (communication), Observatories, Infrared detectors, Cameras, Panoramic photography, Infrared sensors, Field programmable gate arrays, Denoising

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Proceedings Article | 20 July 2010 Paper

Paper

Opto-mechanical design of PANIC

Josef Fried, Harald Baumeister, Armin Huber, Werner Laun, Ralf-Rainer Rohloff, M. Concepción Cárdenas

Proceedings Volume 7735, 77353V (2010) https://doi.org/10.1117/12.857029

KEYWORDS: Telescopes, Sensors, Mirrors, Optical filters, Tolerancing, Lenses, Electronics, Optomechanical design, Space telescopes, Optical design

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Proceedings Article | 15 July 2010 Paper

Paper

LUCIFER1 commissioning at the LBT

N. Ageorges, W. Seifert, M. Jütte, V. Knierim, M. Lehmitz, A. Germeroth, P. Buschkamp, K. Polsterer, A. Pasquali, V. Naranjo, H. Gemperlein, J. Hill, C. Feiz, R. Hofmann, W. Laun, R. Lederer, R. Lenzen, U. Mall, H. Mandel, P. Müller, A. Quirrenbach, L. Schäffner, C. Storz, P. Weiser

Proceedings Volume 7735, 77351L (2010) https://doi.org/10.1117/12.857760

KEYWORDS: Stars, Cameras, Telescopes, Electroluminescent displays, Molybdenum, Spectroscopy, Sensors, Imaging spectroscopy, Image quality, Calibration

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Proceedings Article | 15 July 2010 Paper

Paper

CARMENES: Calar Alto high-resolution search for M dwarfs with exo-earths with a near-infrared Echelle spectrograph

A. Quirrenbach, P. Amado, H. Mandel, J. Caballero, R. Mundt, I. Ribas, A. Reiners, M. Abril, J. Aceituno, C. Afonso, D. Barrado y Navascues, J. Bean, V. J. Béjar, S. Becerril, A. Böhm, M. Cárdenas, A. Claret, J. Colomé, L. Costillo, S. Dreizler, M. Fernández, X. Francisco, D. Galadí, R. Garrido, J. González Hernández, J. Guàrdia, E. Guenther, F. Gutiérrez-Soto, V. Joergens, A. Hatzes, J. Helmling, T. Henning, E. Herrero, M. Kürster, W. Laun, R. Lenzen, U. Mall, E. Martin, S. Martín-Ruiz, E. Mirabet, D. Montes, J. Morales, R. Morales Muñoz, A. Moya, V. Naranjo, O. Rabaza, A. Ramón, R. Rebolo, S. Reffert, F. Rodler, E. Rodríguez, A. Rodríguez Trinidad, R. Rohloff, M. Sánchez Carrasco, C. Schmidt, W. Seifert, J. Setiawan, E. Solano, O. Stahl, C. Storz, J. Suárez, U. Thiele, K. Wagner, G. Wiedemann, M. Zapatero Osorio, C. del Burgo, E. Sánchez-Blanco, W. Xu

Proceedings Volume 7735, 773513 (2010) https://doi.org/10.1117/12.857777

KEYWORDS: Planets, Stars, Spectrographs, Calibration, Sensors, Lamps, Optical fibers, Exoplanets, Telescopes, Spectral resolution

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Proceedings Article | 28 July 2008 Open Access

Open Access

Paper

GRAVITY: getting to the event horizon of Sgr A*

F. Eisenhauer, G. Perrin, W. Brandner, C. Straubmeier, A. Richichi, S. Gillessen, J. P. Berger, S. Hippler, A. Eckart, M. Schöller, S. Rabien, F. Cassaing, R. Lenzen, M. Thiel, Y. Clénet, J. R. Ramos, S. Kellner, P. Fédou, H. Baumeister, R. Hofmann, E. Gendron, A. Boehm, H. Bartko, X. Haubois, R. Klein, K. Dodds-Eden, K. Houairi, F. Hormuth, A. Gräter, L. Jocou, V. Naranjo, R. Genzel, P. Kervella, T. Henning, N. Hamaus, S. Lacour, U. Neumann, M. Haug, F. Malbet, W. Laun, J. Kolmeder, T. Paumard, R.-R. Rohloff, O. Pfuhl, K. Perraut, J. Ziegleder, D. Rouan, G. Rousset

Proceedings Volume 7013, 70132A (2008) https://doi.org/10.1117/12.788407

KEYWORDS: Stars, Telescopes, Near infrared, Adaptive optics, Metrology, Sensors, Interferometry, Integrated optics, Wavefront sensors, Spectroscopy

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Proceedings Article | 28 July 2008 Paper

Paper

MATISSE: perspective of imaging in the mid-infrared at the VLTI

B. Lopez, P. Antonelli, S. Wolf, S. Lagarde, W. Jaffe, R. Navarro, U. Graser, R. Petrov, G. Weigelt, Y. Bresson, K. Hofmann, U. Beckman, T. Henning, W. Laun, Ch. Leinert, S. Kraus, S. Robbe-Dubois, F. Vakili, A. Richichi, P. Abraham, J.-C. Augereau, J. Behrend, Ph. Berio, N. Berruyer, O. Chesneau, J. Clausse, C. Connot, K. Demyk, W. Danchi, M. Dugué, G. Finger, S. Flament, A. Glazenborg, H. Hannenburg, M. Heininger, Y. Hugues, J. Hron, S. Jankov, F. Kerschbaum, G. Kroes, H. Linz, J.-L. Lizon, Ph. Mathias, R. Mathar, A. Matter, J. Menut, K. Meisenheimer, F. Millour, N. Nardetto, U. Neumann, E. Nussbaum, A. Niedzielski, L. Mosoni, J. Olofsson, Y. Rabbia, T. Ratzka, F. Rigal, A. Roussel, D. Schertl, F.-X. Schmider, B. Stecklum, E. Thiebaut, M. Vannier, B. Valat, K. Wagner, L. B. F. M. Waters

Proceedings Volume 7013, 70132B (2008) https://doi.org/10.1117/12.789412

KEYWORDS: Mid-IR, Planets, Stars, Interferometry, Spectral resolution, Spectroscopy, Mirrors, Telescopes, Sensors, Observatories

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Proceedings Article | 11 July 2008 Paper

Paper

LUCIFER status report: summer 2008

Holger Mandel, Walter Seifert, Reiner Hofmann, Marcus Jütte, Rainer Lenzen, Nancy Ageorges, Dominik Bomans, Peter Buschkamp, Ralf-Jürgen Dettmar, Carmen Feiz, Hans Gemperlein, André Germeroth, Lutz Geuer, Jochen Heidt, Volker Knierim, Werner Laun, Michael Lehmitz, Ulrich Mall, Peter Müller, Vianac Naranjo, Kai Polsterer, Andreas Quirrenbach, Ludwig Schäffner, Florian Schwind, Peter Weiser, Harald Weisz

Proceedings Volume 7014, 70143S (2008) https://doi.org/10.1117/12.787203

KEYWORDS: Molybdenum, Imaging spectroscopy, Telescopes, Cameras, Spectroscopes, Diffraction, Astronomical imaging, Software development, Mirrors, Control systems

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Proceedings Article | 9 July 2008 Paper

Paper

PANIC: the new panoramic NIR camera for Calar Alto

Harald Baumeister, Matthias Alter, M. Concepción Cárdenas Vázquez, Matilde Fernandez, Josef Fried, Jens Helmling, Armin Huber, Jose-Miguel Ibáñez Mengual, Julio F. Rodríguez Gómez, Werner Laun, Rainer Lenzen, Ulrich Mall, Vianak Naranjo, Jose-Ricardo Ramos, Ralf-Rainer Rohloff, Antonio García Segura, Clemens Storz, Marcos Ubierna, Karl Wagner

Proceedings Volume 7014, 70142R (2008) https://doi.org/10.1117/12.788796

KEYWORDS: Sensors, Telescopes, Mirrors, Optical filters, Lenses, Silica, Near infrared, Nitrogen, Cryogenics, Cameras

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Proceedings Article | 11 July 2006 Paper

Paper

LUCIFER status report: Summer 2006

H. Mandel, I. Appenzeller, W. Seifert, H. Baumeister, R.-J. Dettmar, C. Feiz, H. Gemperlein, A. Germeroth, B. Grimm, J. Heidt, T. Herbst, R. Hofmann, M. Jütte, V. Knierim, W. Laun, T. Luks, M. Lehmitz, R. Lenzen, K. Polsterer, A. Quirrenbach, R.-R. Rohloff, J. Rosenberger, P. Weiser, H. Weisz

Proceedings Volume 6269, 62693F (2006) https://doi.org/10.1117/12.671067

KEYWORDS: Electronics, Manufacturing, Telescopes, Control systems, Molybdenum, Java, Cameras, Optomechanical components, Spectrographs, Interfaces

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Proceedings Article | 28 June 2006 Paper

Paper

MATISSE: a four beam combiner in the mid-infrared for the VLTI

S. Lagarde, B. Lopez, P. Antonelli, U. Beckman, J. Behrend, Y. Bresson, O. Chesneau, M. Dugué, A. Glazenborg, U. Graser, K. Hofmann, W. Jaffe, Ch. Leinert, F. Millour, J. Menut, R. Petrov, T. Ratzka, G. Weigelt, S. Wolf, P. Abraham, C. Connot, T. Henning, M. Heininger, Y. Hugues, S. Kraus, W. Laun, A. Matter, U. Neumann, E. Nussbaum, A. Niedzielski, L. Mosoni, S. Robbe-Dubois, A. Roussel, D. Schertl, F. Vakili, K. Wagner, L.B.F.M. Waters

Proceedings Volume 6268, 62683M (2006) https://doi.org/10.1117/12.671690

KEYWORDS: Sensors, Signal to noise ratio, Telescopes, Mid-IR, Spectral resolution, Interferometers, Spectroscopes, Phase measurement, Interferometry, Mirrors

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Proceedings Article | 28 June 2006 Paper

Paper

The LINC-NIRVANA fringe and flexure tracker: cryo-ambient mechanical design

Thomas Bertram, Harald Baumeister, Werner Laun, Christian Straubmeier, Steffen Rost, Yeping Wang, Andreas Eckart

Proceedings Volume 6268, 62683L (2006) https://doi.org/10.1117/12.671378

KEYWORDS: Sensors, Cryogenics, Head, Point spread functions, Stars, Mechanical engineering, Interferometry, Near infrared, Cameras, Optical filters

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Proceedings Article | 28 June 2006 Paper

Paper

The LINC-NIRVANA IR cryostat

W. Laun, H. Baumeister, P. Bizenberger

Proceedings Volume 6269, 626956 (2006) https://doi.org/10.1117/12.671642

KEYWORDS: Helium, Sensors, Telescopes, Space telescopes, Optical mounts, Aluminum, Mirrors, Astronomy, Temperature sensors, Copper

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Proceedings Article | 27 June 2006 Paper

Paper

MATISSE: perspective of imaging in the mid-infrared at the VLTI

B. Lopez, S. Wolf, S. Lagarde, P. Abraham, P. Antonelli, J. Augereau, U. Beckman, J. Behrend, N. Berruyer, Y. Bresson, O. Chesneau, J. Clausse, C. Connot, K. Demyk, W. Danchi, M. Dugué, S. Flament, A. Glazenborg, U. Graser, T. Henning, K. Hofmann, M. Heininger, Y. Hugues, W. Jaffe, S. Jankov, S. Kraus, W. Laun, Ch. Leinert, H. Linz, Ph. Mathias, K. Meisenheimer, A. Matter, J. Menut, F. Millour, U. Neumann, E. Nussbaum, A. Niedzielski, L. Mosonic, R. Petrov, T. Ratzka, S. Robbe-Dubois, A. Roussel, D. Schertl, F.-X. Schmider, B. Stecklum, E. Thiebaut, F. Vakili, K. Wagner, L. B. F. M. Waters, G. Weigelt

Proceedings Volume 6268, 62680Z (2006) https://doi.org/10.1117/12.671636

KEYWORDS: Mid-IR, Planets, Stars, Spectral resolution, Interferometry, Spectroscopy, Signal to noise ratio, Visibility, Spatial resolution, Sensors

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Proceedings Article | 25 October 2004 Paper

Paper

LINC-NIRVANA: the single arm MCAO experiment

Sebastian Egner, Wolfgang Gaessler, Tom Herbst, Roberto Ragazzoni, Remko Stuik, D. Andersen, C. Arcidiacono, H. Baumeister, U. Beckmann, J. Behrend, T. Bertram, P. Bizenberger, H. Boehnhardt, E. Diolaiti, T. Driebe, A. Eckhardt, J. Farinato, M. Kuerster, W. Laun, S. Ligori, Vianak Naranjo, E. Nußbaum, H.-W. Rix, R.-R. Rohloff, Piero Salinari, R. Soci, C. Straubmeier, E. Vernet-Viard, Gerd Weigelt, R. Weiss, W. Xu

Proceedings Volume 5490, (2004) https://doi.org/10.1117/12.550046

KEYWORDS: Actuators, Telescopes, Mirrors, Adaptive optics, Deformable mirrors, Temperature metrology, Stars, Cameras, Interferometers, Wavefront sensors

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Proceedings Article | 25 October 2004 Paper

Paper

LINC-NIRVANA: how to get a 23-m wavefront nearly flat

Wolfgang Gaessler, Roberto Ragazzoni, Thomas Herbst, David Andersen, Carmelo Arcidiacono, Harald Baumeister, Udo Beckmann, Jan Behrend, Thomas Bertram, Peter Bizenberger, Hermann Bohnhardt, F. Briegel, Emiliano Diolaiti, Thomas Driebe, A. Eckhardt, Sebastian Egner, Jacopo Farinato, Matthias Heininger, M. Kürster, Werner Laun, Sebastiano Ligori, Vianak Naranjo, Edmund Nussbaum, Hans-Walter Rix, Ralf-Rainer Rohloff, Piero Salinari, Roberto Soci, Clemens Storz, Christian Straubmeier, Elise Vernet-Viard, Gerd Weigelt, Robert Weiss, Wenli Xu

Proceedings Volume 5490, (2004) https://doi.org/10.1117/12.551908

KEYWORDS: Stars, Telescopes, Sensors, Wavefront sensors, Adaptive optics, Mirrors, Actuators, Wavefronts, Interferometry, Turbulence

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Proceedings Article | 30 September 2004 Paper

Paper

The LINC-NIRVANA cryogenic interferometric camera

Peter Bizenberger, Dave Andersen, Harald Baumeister, Udo Beckmann, Emiliano Diolaiti, Tom Herbst, Werner Laun, Lars Mohr, Vianak Naranjo, Christian Straubmeier

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.551400

KEYWORDS: Sensors, Cryogenics, Telescopes, Interferometry, Cameras, Mirrors, Point spread functions, Tolerancing, Collimators, Adaptive optics

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Proceedings Article | 30 September 2004 Paper

Paper

LUCIFER status report, summer 2004

Holger Mandel, Immo Appenzeller, Walter Seifert, Harald Baumeister, Peter Bizenberger, Ralf-Juergen Dettmar, Hans Gemperlein, Bernhard Grimm, Tom Herbst, Reiner Hofmann, Marcus Jutte, Werner Laun, Michael Lehmitz, Sebastiano Ligori, Rainer Lenzen, Kai Polsterer, Ralf-Rainer Rohloff, Andreas Schuetze, Andreas Seltmann, Peter Weiser, Harald Weisz, Wenli Xu

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.551302

KEYWORDS: Sensors, Control systems, Cameras, Java, Manufacturing, Near infrared, Optical filters, Spectrographs, Mirrors, Molybdenum

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Proceedings Article | 30 September 2004 Paper

Paper

LUCIFER: status and results of the hardware testing

Walter Seifert, Werner Laun, Michael Lehmitz, Holger Mandel, Andreas Schuetze, Andreas Seltmann

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.551288

KEYWORDS: Mirrors, Cameras, Telescopes, Imaging spectroscopy, Spectroscopes, Hardware testing, Astronomical imaging, Spectrographs, Molybdenum, Sensors

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Proceedings Article | 30 September 2004 Paper

Paper

Cooling of ground-based telescope instrumentation: the LINC-NIRVANA cryostat

Werner Laun, Harald Baumeister, Peter Bizenberger

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.551497

KEYWORDS: Helium, Nitrogen, Liquids, Telescopes, Cryogenics, Temperature metrology, Cooling systems, Head, Mirrors, Sensors

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Proceedings Article | 7 March 2003 Paper

Paper

LUCIFER: a multimode NIR instrument for the LBT

Walter Seifert, Immo Appenzeller, Harald Baumeister, Peter Bizenberger, Dominik Bomans, Ralf-Juergen Dettmar, Bernard Grimm, Tom Herbst, Reiner Hofmann, Marcus Juette, Werner Laun, Michael Lehmitz, Roland Lemke, Rainer Lenzen, Holger Mandel, K. Polsterer, Ralf-Rainer Rohloff, A. Schuetze, Andreas Seltmann, Niranjan Thatte, Peter Weiser, Wenli Xu

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.459494

KEYWORDS: Cameras, Sensors, Imaging spectroscopy, Electronics, Spectroscopes, Near infrared, Telescopes, Control systems, Mirrors, Molybdenum

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Proceedings Article | 7 March 2003 Paper

Paper

CONICA design, performance and final laboratory tests

Markus Hartung, Rainer Lenzen, Reiner Hofmann, Armin Böhm, Wolfgang Brandner, Gert Finger, Thierry Fusco, Francois Lacombe, Werner Laun, Philippe Granier, Clemens Storz, Karl Wagner

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.460035

KEYWORDS: Adaptive optics, Sensors, Calibration, Imaging spectroscopy, Electrons, Data conversion, Cameras, Spectroscopes, Astronomy, Telescopes

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Proceedings Article | 21 February 2003 Paper

Paper

Ten-micron instrument MIDI: getting ready for observations on the VLTI

Christoph Leinert, Uwe Graser, L. B. F. M. Waters, Guy Perrin, Walter Jaffe, Bruno Lopez, Frank Przygodda, Olivier Chesneau, Peter Schuller, Annelie Glazenborg-Kluttig, Werner Laun, Sebastiano Ligori, Jeffrey Meisner, Karl Wagner, Eric Bakker, Bill Cotton, Jeroen de Jong, Richard Mathar, Udo Neumann, Clemens Storz

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.457027

KEYWORDS: Interferometry, Sensors, Visibility, Telescopes, Cameras, Modulation, Astatine, Mirrors, Optical filters, Spectral resolution

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Proceedings Article | 16 August 2000 Paper

Paper

First test results and calibration methods of CONICA as a stand-alone device

Markus Hartung, Peter Bizenberger, Armin Boehm, Werner Laun, Rainer Lenzen, Karl Wagner

Proceedings Volume 4008, (2000) https://doi.org/10.1117/12.395543

KEYWORDS: Sensors, Cameras, Calibration, Imaging spectroscopy, Point spread functions, Spectroscopes, Distortion, Argon, Polarimetry, Quantum efficiency

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Proceedings Article | 5 July 2000 Paper

Paper

Cryo design for the VLTI MIDI instrument

Ralf-Rainer Rohloff, Werner Laun, Uwe Graser, Norbert Ortlieb, Matthias Lebong

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390219

KEYWORDS: Current controlled current source, Sensors, Copper, Aluminum, Switches, Interferometry, Liquids, Thermography, Mechanics, Nitrogen

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