Status of the ARGOS ground layer adaptive optics system

Wolfgang Gässler, Sebastian Rabien, Simone Esposito, Michael Lloyd-Hart, Lothar Barl, Udo Beckmann, Thomas Bluemchen, Marco Bonaglia, José Luis Borelli, Guido Brusa, Joar Brynnel, Peter Buschkamp, Lorenzo Busoni, Luca Carbonaro, Claus Connot, Richard Davies, Matthias Deysenroth, Olivier Durney, Richard Green, Hans GemperleinVictor Gasho, Marcus Haug, Pete Hubbard, Sebastian Ihle, Martin Kulas, Reinhard Lederer, Jason Lewis, Christina Loose, Michael Lehmitz, Jamison Noenickx, Edmund Nussbaum, Gilles Orban De Xivry, Diethard Peter, Andreas Quirrenbach, Matt Rademacher, Walfried Raab, Jesper Storm, Christian Schwab, Vidhya Vaitheeswaran, Julian Ziegleder

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations


ARGOS the Advanced Rayleigh guided Ground layer adaptive Optics System for the LBT (Large Binocular Telescope) is built by a German-Italian-American consortium. It will be a seeing reducer correcting the turbulence in the lower atmosphere over a field of 2′ radius. In such way we expect to improve the spatial resolution over the seeing of about a factor of two and more and to increase the throughput for spectroscopy accordingly. In its initial implementation, ARGOS will feed the two near-infrared spectrograph and imager - LUCI I and LUCI II. The system consist of six Rayleigh lasers - three per eye of the LBT. The lasers are launched from the back of the adaptive secondary mirror of the LBT. ARGOS has one wavefront sensor unit per primary mirror of the LBT, each of the units with three Shack-Hartmann sensors, which are imaged on one detector. In 2010 and 2011, we already mounted parts of the instrument at the telescope to provide an environment for the main sub-systems. The commissioning of the instrument will start in 2012 in a staged approach. We will give an overview of ARGOS and its goals and report about the status and new challenges we encountered during the building phase. Finally we will give an outlook of the upcoming work, how we will operate it and further possibilities the system enables by design.

Original languageEnglish (US)
Title of host publicationAdaptive Optics Systems III
StatePublished - 2012
EventAdaptive Optics Systems III - Amsterdam, Netherlands
Duration: Jul 1 2012Jul 6 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherAdaptive Optics Systems III


  • Ground layer adaptive optics
  • Large binocular telescope
  • Laser guide star

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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