Dr. Ronald Roelfsema
at ASTRON
SPIE Involvement:
Author
Publications (38)

Proceedings Article | 29 August 2022 Poster + Paper
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

Proceedings Article | 11 July 2018 Paper
Proceedings Volume 10702, 1070291 (2018) https://doi.org/10.1117/12.2312075
KEYWORDS: Calibration, Integrating spheres, Black bodies, Mid-IR, Alignment procedures, Infrared backgrounds

Proceedings Article | 10 July 2018 Paper
Ronald Roelfsema, Johan Pragt, Rik ter Horst, Tibor Agocs, Olga Bellido, Joar Brynnel, Ariadna Calcines-Rosario, Steffen Frey, Amina Helmi, Jeroen Herrewijnen, Tom Houtsma, Roelof de Jong, Michael Lehmitz, Graham Murray, Gert Musters, Ramon Navarro, Allar Saviauk, Olivier Schnurr, Ray Sharples, Roland Winkler
Proceedings Volume 10702, 107027V (2018) https://doi.org/10.1117/12.2312473
KEYWORDS: Calibration, Fabry–Perot interferometers, Telescopes, Integrating spheres, Lamps, Spectrographs, Light sources, Beam splitters, Astronomical imaging, Spectrometers

Proceedings Article | 10 July 2018 Paper
Proceedings Volume 10702, 107028P (2018) https://doi.org/10.1117/12.2310112
KEYWORDS: Calibration, Optical design, Mirrors, Diffraction, Optical benches, Relays, Wavefronts, Mid-IR, Imaging systems, Astronomy

Proceedings Article | 9 August 2016 Paper
Proceedings Volume 9908, 99083D (2016) https://doi.org/10.1117/12.2233953
KEYWORDS: Wavefronts, Optical spheres, Cameras, Actuators, Calibration, Coronagraphy, Mirrors, Infrared radiation, Sensors, Iterated function systems

Proceedings Article | 9 August 2016 Paper
Gert Raskin, Johan Morren, Wim Pessemier, Steven Bloemen, Marc Klein-Wolt, Ronald Roelfsema, Paul Groot, Conny Aerts
Proceedings Volume 9908, 99084L (2016) https://doi.org/10.1117/12.2232485
KEYWORDS: Telescopes, Photonic integrated circuits, Sensors, CCD image sensors, Charge-coupled devices, Control systems, Electronics, Robotics, Control systems design, Fluctuations and noise

Proceedings Article | 4 August 2016 Paper
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

Proceedings Article | 27 July 2016 Paper
Steven Bloemen, Paul Groot, Patrick Woudt, Marc Klein Wolt, Vanessa McBride, Gijs Nelemans, Elmar Körding, Margaretha Pretorius, Ronald Roelfsema, Felix Bettonvil, Harry Balster, Roy Bakker, Peter Dolron, Arjen van Elteren, Eddy Elswijk, Arno Engels, Rob Fender, Marc Fokker, Menno de Haan, Klaas Hagoort, Jasper de Hoog, Rik ter Horst, Giel van der Kevie, Stanisław Kozłowski, Jan Kragt, Grzegorz Lech, Rudolf Le Poole, Dirk Lesman, Johan Morren, Ramon Navarro, Willem-Jelle Paalberends, Kerry Paterson, Rafal Pawłaszek, Wim Pessemier, Gert Raskin, Harrie Rutten, Bart Scheers, Menno Schuil, Piotr Sybilski
Proceedings Volume 9906, 990664 (2016) https://doi.org/10.1117/12.2232522
KEYWORDS: Telescopes, Stars, Telescopes, Radio optics, Stars, Mirrors, Lanthanum, Optical instrument design, Observatories, Electroluminescent displays, Charge-coupled devices, Electronics

Proceedings Article | 26 July 2016 Paper
Ronald Roelfsema, Andreas Bazzon, Hans Martin Schmid, Johan Pragt, Alain Govaert, Daniel Gisler, Carsten Dominik, Andrea Baruffolo, Jean-Luc Beuzit, Anne Costille, Kjetil Dohlen, Mark Downing, Eddy Elswijk, Menno de Haan, Norbert Hubin, Markus Kasper, Christoph Keller, Jean-Louis Lizon, David Mouillet, Alexey Pavlov, Pascal Puget, Bernardo Salasnich, Jean-Francois Sauvage, Francois Wildi
Proceedings Volume 9909, 990927 (2016) https://doi.org/10.1117/12.2231883
KEYWORDS: Polarimetry, Optical spheres, Point spread functions, Speckle, Polarization, Coronagraphy, Planets, Speckle pattern, Switches, Denoising

Proceedings Article | 5 July 2016 Paper
Ronald Roelfsema, Marc Klein Wolt, Steven Bloemen, Paul Groot, Felix Bettonvil, Harry Balster, Peter Dolron, Arjen van Elteren, Arno Engels, Menno de Haan, Rik ter Horst, Jan Kragt, Ramon Navarro, Gijs Nelemans, Willem Jelle Paalberends, Sari Pal, Gert Raskin, Harrie Rutten, Bart Scheers, Menno Schuil, Piotr Sybilski
Proceedings Volume 10012, 1001206 (2016) https://doi.org/10.1117/12.2204767
KEYWORDS: Telescopes, Performance modeling, Mirrors, Thermal modeling, Integrated modeling, Control systems, Instrument modeling, MATLAB, Simulink, Excel, Sensors, Signal to noise ratio, Point spread functions

SPIE Journal Paper | 24 May 2016
JATIS, Vol. 2, Issue 02, 025003, (May 2016) https://doi.org/10.1117/12.10.1117/1.JATIS.2.2.025003
KEYWORDS: Optical spheres, Adaptive optics, Actuators, Turbulence, Coronagraphy, Point spread functions, Calibration, Mirrors, Telescopes, Observatories

Proceedings Article | 24 July 2014 Paper
Roger Haynes, Samuel Barden, Roelof de Jong, Olivier Schnurr, Olga Bellido, Jakob Walcher, Dionne Haynes, Roland Winkler, Svend-Marian Bauer, Frank Dionies, Allar Saviauk, Cristina Chiappini, Axel Schwope, Joar Brynnel, Matthias Steinmetz, Richard McMahon, Sofia Feltzing, Patrick Francois, Scott Trager, Ian Parry, Mike Irwin, Nicholas Walton, David King, David Sun, Eduaro Gonzalez-Solares, Ian Tosh, Gavin Dalton, Kevin Middleton, Piercarlo Bonifacio, Pascal Jagourel, Shan Mignot, Mathieu Cohen, Jean-Philippe Amans, Frederic Royer, Paola Sartoretti, Johan Pragt, Gerrit Gerlofsma, Ronald Roelfsema, Ramon Navarro, Guido Thimm, Walter Seifert, Norbert Christlieb, Holger Mandel, Trifon Trifonov, Wenli Xu, Florian Lang-Bardl, Bernard Muschielok, Jörg Schlichter, Hans-Joachim Hess, Frank Grupp, Hans Boehringer, Thomas Boller, Tom Dwelly, Ralf Bender, Piero Rosati, Olaf Iwert, Gert Finger, Jean-Louis Lizon L'Allemand, Will Saunders, Andrew Sheinis, Gabriella Frost, Tony Farrell, Lewis Waller, Eric Depagne, Florence Laurent, Patrick Caillier, Johan Kosmalski, Johan Richard, Roland Bacon, Wolfgang Ansorge
Proceedings Volume 9147, 91476I (2014) https://doi.org/10.1117/12.2057253
KEYWORDS: Control systems, Telescopes, Sensors, Calibration, Spectrographs, Metrology, Neodymium, Ions, Optical instrument design, Optical design

Proceedings Article | 24 July 2014 Paper
Felix Bettonvil, G. Kroes, T. Agoćs, A. van Duin, E. Elswijk, M. de Haan, R. ter Horst, J. Kragt, J. Kuindersma, R. Navarro, R. Roelfsema, M. Schuil, T. Tromp, L. Venema, F. van Kessel, A. Jaskó
Proceedings Volume 9147, 91477Q (2014) https://doi.org/10.1117/12.2056997
KEYWORDS: Mirrors, Optics manufacturing, Interferometry, Sensors, Cryogenics, Manufacturing, Telescopes, Polarizers, Integrated optics, Spatial filters

Proceedings Article | 24 July 2014 Paper
Roelof de Jong, Sam Barden, Olga Bellido-Tirado, Joar Brynnel, Cristina Chiappini, Éric Depagne, Roger Haynes, Diana Johl, Daniel Phillips, Olivier Schnurr, Axel Schwope, Jakob Walcher, Svend Bauer, Gabriele Cescutti, Maria-Rosa Cioni, Frank Dionies, Harry Enke, Dionne Haynes, Andreas Kelz, Francisco Kitaura, Georg Lamer, Ivan Minchev, Volker Müller, Sebastián Nuza, Jean-Christophe Olaya, Tilmann Piffl, Emil Popow, Allar Saviauk, Matthias Steinmetz, Uğur Ural, Monica Valentini, Roland Winkler, Lutz Wisotzki, Wolfgang Ansorge, Manda Banerji, Eduardo Gonzalez Solares, Mike Irwin, Robert Kennicutt, David King, Richard McMahon, Sergey Koposov, Ian Parry, Xiaowei Sun, Nicholas Walton, Gert Finger, Olaf Iwert, Mirko Krumpe, Jean-Louis Lizon, Vincenzo Mainieri, Jean-Philippe Amans, Piercarlo Bonifacio, Matthieu Cohen, Patrick François, Pascal Jagourel, Shan Mignot, Frédéric Royer, Paola Sartoretti, Ralf Bender, Hans-Joachim Hess, Florian Lang-Bardl, Bernard Muschielok, Jörg Schlichter, Hans Böhringer, Thomas Boller, Angela Bongiorno, Marcella Brusa, Tom Dwelly, Andrea Merloni, Kirpal Nandra, Mara Salvato, Johannes Pragt, Ramón Navarro, Gerrit Gerlofsma, Ronald Roelfsema, Gavin Dalton, Kevin Middleton, Ian Tosh, Corrado Boeche, Elisabetta Caffau, Norbert Christlieb, Eva Grebel, Camilla Hansen, Andreas Koch, Hans-G. Ludwig, Holger Mandel, Andreas Quirrenbach, Luca Sbordone, Walter Seifert, Guido Thimm, Amina Helmi, Scott trager, Thomas Bensby, Sofia Feltzing, Gregory Ruchti, Bengt Edvardsson, Andreas Korn, Karin Lind, Wilfried Boland, Matthew Colless, Gabriella Frost, James Gilbert, Peter Gillingham, Jon Lawrence, Neville Legg, Will Saunders, Andrew Sheinis, Simon Driver, Aaron Robotham, Roland Bacon, Patrick Caillier, Johan Kosmalski, Florence Laurent, Johan Richard
Proceedings Volume 9147, 91470M (2014) https://doi.org/10.1117/12.2055826
KEYWORDS: Galactic astronomy, Spectrographs, Telescopes, Stars, Spine, Spectroscopy, Spectroscopes, X-rays, Observatories, Calibration

Proceedings Article | 8 July 2014 Paper
Proceedings Volume 9147, 91473W (2014) https://doi.org/10.1117/12.2056493
KEYWORDS: Polarization, Polarimetry, Coronagraphy, Optical spheres, Point spread functions, Planets, Imaging systems, Adaptive optics, Sensors, Charge-coupled devices

Proceedings Article | 26 September 2013 Paper
Proceedings Volume 8864, 88640C (2013) https://doi.org/10.1117/12.2023600
KEYWORDS: Polarimetry, Coronagraphy, Polarization, Optical spheres, Planets, Adaptive optics, Sensors, Exoplanets, Turbulence, Signal detection

Proceedings Article | 26 September 2013 Paper
Jean-François Sauvage, Jean-Luc Beuzit, Ronald Roelfsema, Markus Feldt, Kjetil Dohlen, David Mouillet, Pascal Puget, Francois Wildi, Lyu Abe, Andrea Baruffolo, Pierre Baudoz, Andreas Bazzon, Anthony Boccaletti, Tristan Buey, Marcel Carbillet, Julien Charton, Riccardo Claudi, Anne Costille, Alain Delboulbé, Silvano Desidera, Carsten Dominik, Mark Downing, Christophe Fabron, Philippe Feautrier, Enrico Fedrigo, Thierry Fusco, Enrico Giro, Laurence Gluck, Raffaele Gratton, Thomas Henning, Norbert Hubin, Markus Kasper, Anne-Marie Lagrange, Maud Langlois, David Le Mignant, Jean-Louis Lizon, Fabrice Madec, Yves Magnard, Patrice Martinez, Dino Mesa, Ole Möller-Nilsson, Thibaut Moulin, Claire Moutou, Alexey Pavlov, Denis Perret, Cyril Petit, Johan Pragt, Patrick Rabou, Sylvain Rochat, Bernardo Salasnich, Gérard Rousset, Hans-Martin Schmid, Arnaud Sevin, Christian Soenke, Eric Stadler, Marcos Suarez, Massimo Turatto, Stéphane Udry, Arthur Vigan, Farrokh Vakili, Gérard Zins, Alice Zurlo
Proceedings Volume 8864, 88640B (2013) https://doi.org/10.1117/12.2025562
KEYWORDS: Optical spheres, Coronagraphy, Turbulence, Exoplanets, Stars, Planets, Iterated function systems, Adaptive optics, Visible radiation, Polarimetry

Proceedings Article | 5 October 2012 Paper
Roelof de Jong, Olga Bellido-Tirado, Cristina Chiappini, Éric Depagne, Roger Haynes, Diana Johl, Olivier Schnurr, Axel Schwope, Jakob Walcher, Frank Dionies, Dionne Haynes, Andreas Kelz, Francisco Kitaura, Georg Lamer, Ivan Minchev, Volker Müller, Sebastián Nuza, Jean-Christophe Olaya, Tilmann Piffl, Emil Popow, Matthias Steinmetz, Ugur Ural, Mary Williams, Roland Winkler, Lutz Wisotzki, Wolfgang Ansorge, Manda Banerji, Eduardo Gonzalez Solares, Mike Irwin, Robert Kennicutt, Dave King, Richard McMahon, Sergey Koposov, Ian Parry, David Sun, Nicholas Walton, Gert Finger, Olaf Iwert, Mirko Krumpe, Jean-Louis Lizon, Mainieri Vincenzo, Jean-Philippe Amans, Piercarlo Bonifacio, Mathieu Cohen, Patrick Francois, Pascal Jagourel, Shan Mignot, Frédéric Royer, Paola Sartoretti, Ralf Bender, Frank Grupp, Hans-Joachim Hess, Florian Lang-Bardl, Bernard Muschielok, Hans Böhringer, Thomas Boller, Angela Bongiorno, Marcella Brusa, Tom Dwelly, Andrea Merloni, Kirpal Nandra, Mara Salvato, Johannes Pragt, Ramón Navarro, Gerrit Gerlofsma, Ronald Roelfsema, Gavin Dalton, Kevin Middleton, Ian Tosh, Corrado Boeche, Elisabetta Caffau, Norbert Christlieb, Eva Grebel, Camilla Hansen, Andreas Koch, Hans-G. Ludwig, Andreas Quirrenbach, Luca Sbordone, Walter Seifert, Guido Thimm, Trifon Trifonov, Amina Helmi, Scott Trager, Sofia Feltzing, Andreas Korn, Wilfried Boland
Proceedings Volume 8446, 84460T (2012) https://doi.org/10.1117/12.926239
KEYWORDS: Spectrographs, Telescopes, Stars, Space telescopes, Calibration, Actuators, Optical instrument design, Spectral resolution, Spectroscopy, Galactic astronomy

Proceedings Article | 25 September 2012 Paper
Proceedings Volume 8449, 844912 (2012) https://doi.org/10.1117/12.926588
KEYWORDS: Polarization, Polarimetry, Telescopes, Mirrors, Modulation, Device simulation, Optical components, Instrument modeling, Systems modeling, Mueller matrices

Proceedings Article | 24 September 2012 Paper
Johan Pragt, Ronald Roelfsema, Daniel Gisler, Francois Wildi, Hans M. Schmid, Florence Rigal, Eddy Elswijk, Menno de Haan, Andreas Bazzon, Kjetil Dohlen, A. Costille, Carsten Dominik
Proceedings Volume 8446, 844697 (2012) https://doi.org/10.1117/12.926766
KEYWORDS: Optical spheres, Mirrors, Sensors, Polarimetry, Beam splitters, Polarizers, Optical alignment, Telescopes, Coronagraphy, Polarization

Proceedings Article | 24 September 2012 Paper
Andreas Bazzon, Daniel Gisler, Ronald Roelfsema, Hans M. Schmid, Johan Pragt, Eddy Elswijk, Menno de Haan, Mark Downing, Bernardo Salasnich, Alexey Pavlov, Jean-Luc Beuzit, Kjetil Dohlen, David Mouillet, François Wildi
Proceedings Volume 8446, 844693 (2012) https://doi.org/10.1117/12.925973
KEYWORDS: Polarization, Polarimetry, Calibration, Modulators, Modulation, Sensors, Switches, Charge-coupled devices, Optical spheres, Linear polarizers

Proceedings Article | 24 September 2012 Paper
Hans-Martin Schmid, Mark Downing, Ronald Roelfsema, Andreas Bazzon, Daniel Gisler, Johan Pragt, Claudio Cumani, Bernardo Salasnich, Alexey Pavlov, Andrea Baruffolo, Jean-Luc Beuzit, Anne Costille, Sebastian Deiries, Kjetil Dohlen, Carsten Dominik, Eddy Elswijk, Markus Feldt, Markus Kasper, David Mouillet, Christian Thalmann, François Wildi
Proceedings Volume 8446, 84468Y (2012) https://doi.org/10.1117/12.925886
KEYWORDS: Polarimetry, Sensors, Charge-coupled devices, Modulation, Polarization, Optical spheres, Demodulation, Photons, Stars, Planets

Proceedings Article | 24 September 2012 Paper
Gavin Dalton, Scott Trager, Don Carlos Abrams, David Carter, Piercarlo Bonifacio, J. Alfonso L. Aguerri, Mike MacIntosh, Chris Evans, Ian Lewis, Ramon Navarro, Tibor Agocs, Kevin Dee, Sophie Rousset, Ian Tosh, Kevin Middleton, Johannes Pragt, David Terrett, Matthew Brock, Chris Benn, Marc Verheijen, Diego Cano Infantes, Craige Bevil, Iain Steele, Chris Mottram, Stuart Bates, Francis J. Gribbin, Jürg Rey, Luis Fernando Rodriguez, Jose Miguel Delgado, Isabelle Guinouard, Nic Walton, Michael Irwin, Pascal Jagourel, Remko Stuik, Gerrit Gerlofsma, Ronald Roelfsma, Ian Skillen, Andy Ridings, Marc Balcells, Jean-Baptiste Daban, Carole Gouvret, Lars Venema, Paul Girard
Proceedings Volume 8446, 84460P (2012) https://doi.org/10.1117/12.925950
KEYWORDS: Telescopes, Cameras, Space telescopes, Molybdenum, Spectrographs, Galactic astronomy, Stars, Sensors, Spectroscopy, Spectral resolution

Proceedings Article | 15 September 2011 Paper
Ronald Roelfsema, Daniel Gisler, Johan Pragt, Hans Martin Schmid, Andreas Bazzon, Carsten Dominik, Andrea Baruffolo, Jean-Luc Beuzit, Julien Charton, Kjetil Dohlen, Mark Downing, Eddy Elswijk, Markus Feldt, Menno de Haan, Norbert Hubin, Markus Kasper, Christoph Keller, Jean-Louis Lizon, David Mouillet, Alexey Pavlov, Pascal Puget, Sylvain Rochat, Bernardo Salasnich, Peter Steiner, Christian Thalmann, Rens Waters, François Wildi
Proceedings Volume 8151, 81510N (2011) https://doi.org/10.1117/12.893101
KEYWORDS: Polarization, Polarimetry, Planets, Sensors, Stars, Exoplanets, Modulators, Optical spheres, Coronagraphy, Demodulation

Proceedings Article | 15 September 2011 Paper
Proceedings Volume 8151, 81510M (2011) https://doi.org/10.1117/12.894389
KEYWORDS: Optical spheres, Sensors, Adaptive optics, Coronagraphy, Stars, Iterated function systems, Planets, Point spread functions, Polarimetry, Image filtering

Proceedings Article | 28 July 2010 Paper
Proceedings Volume 7736, 77361N (2010) https://doi.org/10.1117/12.857096
KEYWORDS: Iterated function systems, Adaptive optics, Speckle, Sensors, Stars, Diffraction, Optical components, Near infrared, Imaging systems, Exoplanets

Proceedings Article | 21 July 2010 Paper
Proceedings Volume 7735, 77356G (2010) https://doi.org/10.1117/12.857626
KEYWORDS: Polarization, Polarimetry, Sensors, Exoplanets, Calibration, Coronagraphy, Telescopes, Modulators, Modulation, Stars

Proceedings Article | 20 July 2010 Paper
Ronald Roelfsema, Hans Martin Schmid, Johannes Pragt, Daniel Gisler, Rens Waters, Andreas Bazzon, Andrea Baruffolo, Jean-Luc Beuzit, Anthony Boccaletti, Julien Charton, Claudio Cumani, Kjetil Dohlen, Mark Downing, Eddy Elswijk, Markus Feldt, Charlotte Groothuis, Menno de Haan, Hiddo Hanenburg, Norbert Hubin, Franco Joos, Markus Kasper, Christoph Keller, Jan Kragt, Jean-Louis Lizon, David Mouillet, Aleksej Pavlov, Florence Rigal, Sylvain Rochat, Bernardo Salasnich, Peter Steiner, Christian Thalmann, Lars Venema, François Wildi
Proceedings Volume 7735, 77354B (2010) https://doi.org/10.1117/12.857045
KEYWORDS: Polarization, Charge-coupled devices, Sensors, Polarimetry, Modulators, Optical spheres, Planets, Mirrors, Stars, Modulation

Proceedings Article | 15 July 2010 Paper
Proceedings Volume 7735, 77352J (2010) https://doi.org/10.1117/12.856988
KEYWORDS: Imaging systems, Calibration, Mirrors, Spectroscopy, Interfaces, Imaging spectroscopy, Packaging, Electronics, Cryogenics, Wavefront sensors

Proceedings Article | 15 July 2010 Paper
Proceedings Volume 7735, 77352E (2010) https://doi.org/10.1117/12.856850
KEYWORDS: Planets, Exoplanets, Iterated function systems, Imaging spectroscopy, Stars, Polarimetry, Adaptive optics, Diffraction, Telescopes, Spectroscopes

Proceedings Article | 20 August 2009 Paper
Proceedings Volume 7440, 74400Q (2009) https://doi.org/10.1117/12.826535
KEYWORDS: Calibration, Optical spheres, Polarization, Sensors, Adaptive optics, Coronagraphy, Polarimetry, Telescopes, Imaging systems, Near infrared

Proceedings Article | 20 August 2009 Paper
Proceedings Volume 7440, 74400P (2009) https://doi.org/10.1117/12.826521
KEYWORDS: Optical spheres, Planets, Adaptive optics, Iterated function systems, Imaging systems, Coronagraphy, Stars, Polarimetry, Sensors, Exoplanets

Proceedings Article | 25 July 2008 Paper
Proceedings Volume 7014, 70143F (2008) https://doi.org/10.1117/12.789158
KEYWORDS: Planets, Stars, Polarization, Coronagraphy, Polarimetry, Optical spheres, Adaptive optics, Signal detection, Sensors, Photons

Proceedings Article | 25 July 2008 Paper
Proceedings Volume 7014, 701418 (2008) https://doi.org/10.1117/12.790120
KEYWORDS: Planets, Optical spheres, Stars, Coronagraphy, Sensors, Iterated function systems, Adaptive optics, Near infrared, Polarimetry, Calibration

Proceedings Article | 11 July 2008 Paper
Ronald Roelfsema, Peter Albers, Jean-Louis Lizon, Pieter van Dael, Eddy Elswijk, Paul Groot, Hiddo Hanenburg, Jan Kragt, Ramon Navarro, Niels Tromp, Gerben Wulterkens
Proceedings Volume 7017, 701717 (2008) https://doi.org/10.1117/12.789296
KEYWORDS: Sensors, Copper, Thermal modeling, Thermography, Spectrographs, Near infrared, Prisms, Temperature metrology, Resistance, Telescopes

Proceedings Article | 11 July 2008 Paper
Proceedings Volume 7015, 70151S (2008) https://doi.org/10.1117/12.789047
KEYWORDS: Planets, Coronagraphy, Point spread functions, Polarization, Iterated function systems, Telescopes, Speckle, Polarimetry, Stars, Imaging spectroscopy

Proceedings Article | 24 September 2007 Paper
Proceedings Volume 6691, 66910L (2007) https://doi.org/10.1117/12.734785
KEYWORDS: Optical spheres, Stars, Planets, Coronagraphy, Iterated function systems, Sensors, Imaging spectroscopy, Near infrared, Adaptive optics, Polarization

Proceedings Article | 6 July 2006 Paper
Ramon Navarro, Eddy Elswijk, Menno de Haan, Hiddo Hanenburg, Rik ter Horst, Pawel Kleszcz, Jan Kragt, Johan Pragt, Florence Rigal, Ronald Roelfsema, Ton Schoenmaker, Niels Tromp, Lars Venema, Paul Groot, Lex Kaper
Proceedings Volume 6273, 62733O (2006) https://doi.org/10.1117/12.670549
KEYWORDS: Prisms, Mirrors, Aluminum, Cryogenics, Optical components, Spectrographs, Optics manufacturing, Near infrared, Optical mounts, Data modeling

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