Final performance of the ESO’s ALICE and LISA wavefront sensing cameras

Autor: Enrico Marchetti, Paola Amico, Martin Brinkmann, Ralf D. Conzelmann, Diego Del Valle, Nicola Di Lieto, Max Engelhardt, Christoph Geimer, Josh Hopgood, Ignacio Molina, Eric Mueller, Jutta Quentin, Javier Reyes, Mathias Richerzhagen, Matthias Seidel, Joerg Stegmeier, Mirko Todorovic

Publikováno v: Adaptive Optics Systems VIII.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48f5c34e9de680ff21e44f3f3a8e8b18
https://doi.org/10.1117/12.2629931

Meter-class mirror figure metrology using a 24-channel fiber interferometer

Autor: Nicola Di Lieto, Juan-Antonio Marrero Hernández, Samuel Lévêque, Andrew Rakich, Ronald Holzlöhner

Publikováno v: Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III.

We measured the influence functions of a 9-actuator warping harness of an ELT primary mirror segment prototype using a fiber interferometer. The compact setup consists of a stiff, lightweighted aluminium plate with a similar diameter as the segment (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f7f3fe1f654a77411178ae7ef9af708
https://doi.org/10.1117/12.2312642

VISIR upgrade overview: all's well that ends well

Autor: Joel Sanchez, Gerd Jakob, Nicola Di Lieto, Konrad R. W. Tristram, Stefan Sandrock, Lars Lundin, Alain Smette, Gert Finger, Hans Ulrich Käufl, Guillermo Valdes, Lars Venema, J. Stegmeier, Christian A. Hummel, Derek Ives, Pedro Baksai, M. Riquelme, Daniel Asmus, Florian Kerber, Mario van den Ancker, Philippe Duhoux, Danuta Dobrzycka, Dimitri Mawet, Leander Mehrgan, J. Taylor, Eric Pantin, Ralf Siebenmorgen

Publikováno v: SPIE Proceedings.

We present an overview of the VISIR instrument after its upgrade and return to science operations. VISIR is the midinfrared imager and spectrograph at ESO’s VLT. The project team is comprised of ESO staff and members of the original VISIR consortiu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::66913a8244b80b30dde470eeff289faf
https://doi.org/10.1117/12.2232441

Control bandwidth improvements in GRAVITY fringe tracker by switching to a synchronous real time computer architecture

Autor: Frank Eisenhauer, Julien Woillez, Pierre Fedou, Than Phan Duc, Roberto Abuter, Nicola Di Lieto, Roderick Dembet, Sylvestre Lacour

Publikováno v: Proceedings of the SPIE
Optical and Infrared Interferometry and Imaging V
Optical and Infrared Interferometry and Imaging V, Jun 2016, Edinburgh, United Kingdom. ⟨10.1117/12.2232019⟩

International audience; The new VLTI (Very Large Telescope Interferometer) 1 instrument GRAVITY5, 22, 23 is equipped with a fringe tracker16 able to stabilize the K-band fringes on six baselines at the same time. It has been designed to achieve a per

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03f26e3ea0ee4872728ba7721ee9ee99
https://hal.science/hal-03743876

VLTI-UT vibrations effort and performances

Autor: Jean-Philippe Berger, Juan-Pablo Henriquez, Antoine Mérand, Pierre Bourget, Nicolas Schuhler, Sébastien Poupar, Jaime Alonso, Nicola Di Lieto, Jean-Louis Lizon, Philippe B. Gitton, Julien Woillez, Frédéric Gonté, Roberto Castillo, Pierre Haguenauer, Stephane Brillant

Publikováno v: SPIE Proceedings.

The ESO Very Large Telescope Interferometer (VLTI) using the Unit Telescope (UT) was strongly affected by vibrations since the first observations. Investigation by ESO on that subject had started in 2007, with a considerable effort since mid 2008. An

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::867a441505dc47d040d942efa05059d8
https://doi.org/10.1117/12.2055435