Dr. Alexis Lavail Profile

Dr. Alexis Lavail

at Uppsala Univ

SPIE Involvement:

Author

Publications (7)

Proceedings Article | 29 August 2022 Presentation + Paper

ANDES, the high resolution spectrograph for the ELT: science case, baseline design and path to construction

A. Marconi, M. Abreu, V. Adibekyan, V. Alberti, S. Albrecht, J. Alcaniz, M. Aliverti, C. Allende Prieto, J. D. Alvarado Gómez, P. J. Amado, M. Amate, M. I. Andersen, E. Artigau, C. Baker, V. Baldini, A. Balestra, S. A. Barnes, F. Baron, S. C. C. Barros, S. M. Bauer, M. Beaulieu, O. Bellido-Tirado, B. Benneke, T. Bensby, E. A. Bergin, K. Biazzo, A. Bik, J. L. Birkby, N. Blind, I. Boisse, E. Bolmont, M. Bonaglia, X. Bonfils, F. Borsa, A. Brandeker, W. Brandner, C. H. Broeg, M. Brogi, D. Brousseau, A. Brucalassi, J. Brynnel, L. A. Buchhave, D. F. Buscher, A. Cabral, G. Calderone, R. Calvo-Ortega, B. L. Canto Martins, F. Cantalloube, L. Carbonaro, G. Chauvin, B. Chazelas, A.-L. Cheffot, Y. S. Cheng, A. Chiavassa, L. Christensen, R. Cirami, N. J. Cook, R. J. Cooke, I. Coretti, S. Covino, N. Cowan, G. Cresci, S. Cristiani, V. Cunha Parro, G. Cupani, V. D'Odorico, I. de Castro Leão, A. De Cia, J. R. De Medeiros, F. Debras, M. Debus, O. Demangeon, M. Dessauges-Zavadsky, P. Di Marcantonio, F. Dionies, R. Doyon, J. Dunn, D. Ehrenreich, J. P. Faria, C. Feruglio, M. Fisher, A. Fontana, M. Fumagalli, T. Fusco, J. Fynbo, O. Gabella, W. Gaessler, E. Gallo, X. Gao, L. Genolet, M. Genoni, P. Giacobbe, E. Giro, R. S. Gonçalves, O. Gonzalez, J. I. González Hernández, F. Gracia Témich, M. G. Haehnelt, C. Haniff, A. Hatzes, R. Helled, H.J. Hoeijmakers, P. Huke, S. Järvinen, A. Järvinen, A. Kaminski, A. Korn, D. Kouach, G. Kowzan, L. Kreidberg, M. Landoni, A. Lanotte, A. Lavail, J. Li, J. Liske, C. Lovis, S. Lucatello, D. Lunney, M. MacIntosh, N. Madhusudhan, L. Magrini, R. Maiolino, L. Malo, A. Man, T. Marquart, E. L. Marques, A. M. Martins, C. J. A. P. Martins, P. Maslowski, C. Mason, E. Mason, R. A. McCracken, P. Mergo, G. Micela, T. Mitchell, P. Mollière, M. Monteiro, D. Montgomery, C. Mordasini, J. Morin, A. Mucciarelli, M. T. Murphy, M. N'Diaye, B. Neichel, A. T. Niedzielski, E. Niemczura, L. Nortmann, P. Noterdaeme, N. Nunes, L. Oggioni, E. Oliva, H. Önel, L. Origlia, G. Östlin, E. Palle, P. Papaderos, G. Pariani, J. Peñate Castro, F. Pepe, L. Perreault Levasseur, P. Petit, L. Pino, J. Piqueras, A. Pollo, K. Poppenhaeger, A. Quirrenbach, E. Rauscher, R. Rebolo, E. M. A. Redaelli, S. Reffert, D. T. Reid, A. Reiners, P. Richter, M. Riva, S. Rivoire, C. Rodríguez-López, I. U. Roederer, D. Romano, S. Rousseau, J. Rowe, S. Salvadori, N. Santos, P. Santos Diaz, J. Sanz-Forcada, M. Sarajlic, J.-F. Sauvage, S. Schäfer, R. P. Schiavon, T. M. Schmidt, C. Selmi, S. Sivanandam, M. Sordet, R. Sordo, F. Sortino, D. Sosnowska, S. G. Sousa, E. Stempels, K. G. Strassmeier, A. Suárez Mascareño, A. Sulich, X. Sun, N.R. Tanvir, F. Tenegi-Sanginés, S. Thibault, S. J. Thompson, A. Tozzi, M. Turbet, P. Vallée, R. Varas, K. Venn, J.-P. Véran, A. Verma, M. Viel, G. Wade, C. Waring, M. Weber, J. Weder, B. Wehbe, J. Weingrill, M. Woche, M. Xompero, E. Zackrisson, A. Zanutta, M. R. Zapatero Osorio, M. Zechmeister, J. Zimara

Proceedings Volume 12184, 1218424 (2022) https://doi.org/10.1117/12.2628689

KEYWORDS: Physics, Spectrographs, Stars, Astronomy, Galactic astronomy, Astrophysics, Exoplanets, Planets, Spectral resolution, Absorption

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Proceedings Article | 29 August 2022 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 | 9 July 2018 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 | 6 July 2018 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

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 | 9 August 2016 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 | 1 August 2016 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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