Mr. Ioannis Politopoulos Profile

Ioannis Politopoulos

at NOVA/Leiden Optical - IR instrumentation group

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Author

Publications (8)

Proceedings Article | 26 August 2024 Poster + Paper

Segmented active/adaptive thin shell mirrors

B. Speet, F. Kamphues, J. de Vreugd, J. Mourik, P. Hinz, I. Politopoulos, R. Navarro

Proceedings Volume 13100, 1310043 (2024) https://doi.org/10.1117/12.3035716

KEYWORDS: Mirrors, Adaptive mirrors, Telescopes, Actuators, Mirror surfaces, Optical surfaces, Segmented mirrors, Glasses, Deformation, Adaptive optics, Glass blank manufacturing, Manufacturing

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Proceedings Article | 26 August 2024 Poster

Polishing and shaping of thin shells for adaptive optics

Ioannis Politopoulos, Rik ter Horst, Ramon Navarro, Stefan Kuiper, Fred Kamphues, Wouter Jonker, Jan de Vreugd, Jeroen Vleggaar

Proceedings Volume 13100, 131003E (2024) https://doi.org/10.1117/12.3019888

Proceedings Article | 26 August 2024 Poster

Assessment of adhesive wear and friction properties between Al6061-T6 and SSX65Cr13 in cryogenics conditions in the context of the Central Wheel Mechanism for MICADO

Ioannis Politopoulos, Jean-Paul Nuismer, Ramon Navarro, Jan Rinze Peterzon, Peter Kunst, Fransesco Maresca, Davide Fioravanti, Rick Romp, Annemieke Janssen, Derek Van Winden

Proceedings Volume 13100, 1310047 (2024) https://doi.org/10.1117/12.3019787

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Proceedings Article | 19 July 2024 Poster

Counting down towards system level AIT for METIS

Remko Stuik, Yau De Huang, Gilles Otten, Ioannis Politopoulos, Dirk Lesman, Adrian Glauser, Chad Salo, Sander Kwast, Dennis Dolkens, Roy van Boekel, Wolfgang Brandner, Ioannis Argyriou, Jeffrey Lynn

Proceedings Volume 13096, 130965A (2024) https://doi.org/10.1117/12.3018309

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Proceedings Article | 18 July 2024 Poster + Paper

Preliminary characterization and verification of 4MOST in Europe

Genoveva Micheva, Olga Bellido-Tirado, Joar Brynnel, Steffen Frey, Andreas Kelz, Roelof de Jong, Allar Saviauk, Roland Winkler, Florence Laurent, Walter Seifert, Ingo Stilz, Florian Rothmaier, Alexander Pramskiy, Michael Lehmitz, Wolfgang Gaessler, Ioannis Politopoulos, Jonathan Irwin, Michael Irwin, Jens-Kristian Krogager, Gérard Zins, Andreas Quirrenbach, Wenli Xu

Proceedings Volume 13096, 1309623 (2024) https://doi.org/10.1117/12.3019870

KEYWORDS: Spectrographs, Calibration, Fiber science, Data acquisition, Telescopes, Equipment, Xenon, Observational astronomy

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Proceedings Article | 18 July 2024 Poster + Paper

The polarimetric performance of HARPS3 and its impact on the Terra Hunting Experiment scheduling

Patrick Dorval, Ioannis Politopoulos, Belinda Nicholson, Rik ter Horst, Casper Farret Jentink, Baptiste Klein, Jan Kragt, Annelies Mortier, Ramón Navarro, Tim Naylor, Jan Rinze Peterzon, Nikolai Piskunov, Federica Rescigno, Samantha Thompson

Proceedings Volume 13096, 130968C (2024) https://doi.org/10.1117/12.3018722

KEYWORDS: Polarimetry, Magnetism, Stars, Spectropolarimetry, Polarization, Beam splitters

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Proceedings Article | 29 August 2022 Poster + Paper

4MOST calibration system: design, assembly, and testing

Ioannis Politopoulos, Johan Pragt, Rik ter Horst, Ronald Roelfsema, Olga Bellido-Tirado, Joar Brynnel, Steffen Frey, Amina Helmi, Jeroen Herrewijnen, Roelof de Jong, Michael Lehmitz, Ramon Navarro, Allar Saviauk, Ray Sharples, Luke Tyas, Jurgen Schmoll, Walter Seifert, Menno de Haan, Menno Schuil, Eddy Elswijk, Eduardo Balbinot

Proceedings Volume 12184, 1218473 (2022) https://doi.org/10.1117/12.2629542

KEYWORDS: Calibration, Spectrographs, Integrating spheres, Telescopes, Fabry–Perot interferometers, Lamps, Camera shutters, Sensors, Mirrors, Lawrencium

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Proceedings Article | 28 December 2020 Paper

Towards a physical understanding of the thermal background in large ground-based telescopes

Leonard Burtscher, Ioannis Politopoulos, Sergio Fernández-Acosta, Tibor Agocs, Mario van den Ancker, Roy van Boekel, Bernhard Brandl, Hans-Ulrich Käufl, Eric Pantin, Alex Pietrow, Ralf Siebenmorgen, Remko Stuik, Konrad Tristram, Willem-Jan de Wit

Proceedings Volume 11447, 114477L (2020) https://doi.org/10.1117/12.2576271

KEYWORDS: Mid-IR, Telescopes, Spectrographs, Ray tracing, Imaging systems, Exoplanets, Cryogenics, Cameras

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Showing 5 of 8 publications

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