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15 results on '"Horodyska, Petra"'

1. Laser-induced precession of magnetization in GaMnAs

Author

Rozkotova, Eva, Nemec, Petr, Sprinzl, Daniel, Horodyska, Petra, Trojanek, Frantisek, Maly, Petr, Novak, Vit, Olejnik, Kamil, Cukr, Miroslav, and Jungwirth, Tomas

Subjects
Magnetic fields -- Models, Magnetic fields -- Analysis, Spectrum analysis -- Usage, Business, Electronics, Electronics and electrical industries
Abstract

We report on the photo-induced precession of the ferromagnetically coupled Mn spins in (Ga,Mn)As, which is observed even with no external magnetic field applied. We concentrate on various experimental aspects of the time-resolved magneto-optical Kerr effect (TR-MOKE) technique that can be used to clarify the origin of the detected signals. We show that the measured data typically consist of several different contributions, among which only the oscillatory signal is directly connected with the ferromagnetic order in the sample. Index Terms--Dynamic response, magnetic semiconductors, magnetooptic Kerr effect, optical spectroscopy.

Published
2008

2. Development of ASPIICS: a coronagraph based on Proba-3 formation flying mission

Author

Galano, Damien Bemporad, Alessandro Buckley, Steve Cernica, Ileana Daniel, Vladimir Denis, Francois de Vos, Lieve and Fineschi, Silvano Galy, Camille Graczyk, Rafal Horodyska, Petra Jacob, Jerome Jansen, Richard Kranitis, Nektarios and Kurowski, Michal Ladno, Michal Ledent, Philippe Loreggia, Davide Melich, Radek Mollet, Dominique Mosdorf, Michal and Paschalis, Antonios Peresty, Radek Purica, Munizer Radzik, Bartlomiej Rataj, Miroslaw Rougeot, Raphael Salvador, Lucas and Thizy, Cedric Versluys, Jorg Walczak, Tomasz Zarzycka, Alicja Zender, Joe Zhukov, Andrei

Abstract

This paper presents the recent achievements in the development of ASPIICS (Association of Spacecraft for Polarimetric and Imaging Investigation of the Corona of the Sun), a solar coronagraph that is the primary payload of ESA's formation flying in-orbit demonstration mission PROBA-3. The PROBA-3 Coronagraph System is designed as a classical externally occulted Lyot coronagraph but it takes advantage of the opportunity to place the 1.4 meter wide external occulter on a companion spacecraft, about 150m apart, to perform high resolution imaging of the inner corona of the Sun as close as similar to 1.1 solar radii. Besides providing scientific data, ASPIICS is also equipped with sensors for providing relevant navigation data to the Formation Flying GNC system. This paper is reviewing the recent development status of the ASPIICS instrument as it passed CDR, following detailed design of all the sub-systems and testing of STM and various Breadboard models. ASPIICS is built by a large European consortium including about 20 partners from 7 countries under the auspices of the European Space Agency.

Published
2018

4. Development of ASPIICS: a coronagraph based on Proba-3 formation flying mission

Author

Galano, Damien, primary, Buckley, Steve, primary, Cernica, Ileana, primary, Dániel, Vladimír, primary, Denis, François, primary, de Vos, Lieve, primary, Fineschi, Silvano, primary, Galy, Camille, primary, Graczyk, Rafal, primary, Horodyska, Petra, primary, Jacob, Jérôme, primary, Jansen, Richard, primary, Kranitis, Nektarios, primary, Kurowski, Michal, primary, Ladno, Michal, primary, Ledent, Philippe, primary, Loreggia, Davide, primary, Melich, Radek, primary, Mollet, Dominique, primary, Mosdorf, Michal, primary, Paschalis, Antonios, primary, Peresty, Radek, primary, Radzik, Bartlomiej, primary, Rataj, Miroslaw, primary, Rougeot, Raphaël, primary, Salvador, Lucas, primary, Thizy, Cédric, primary, Walczak, Tomasz, primary, Zarzycka, Alicja, primary, Zender, Joe, primary, Zhukov, Andrei, primary, Bemporad, Alessandro, primary, Purica, Munizer, primary, and Versluys, Jorg, primary

Published
2018
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5. Recent achievements on ASPIICS, an externally occulted coronagraph for PROBA-3

Author

Renotte, Etienne Buckley, Steve Cernica, Ileana Denis, Francois Desselle, Richard de Vos, Lieve Fineschi, Silvano and Fleury-Frenette, Karl Galano, Damien Galy, Camille and Gillis, Jean-Marie Graas, Estelle Graczyk, Rafal Horodyska, Petra Kranitis, Nektarios Kurowski, Michal Ladno, Michal and Liebecq, Sylvie Loreggia, Davide Mechmech, Idriss Melich, Radek Monet, Dominique Mosdorf, Michal Mroczkowski, Mateusz and O'Neill, Kevin Patocka, Karel Paschalis, Antonis and Peresty, Radek Radzik, Bartlomiej Rataj, Miroslaw Salvador, Lucas Servaye, Jean-Sebastien Stockman, Yvan Thizy, Cedric and Walczak, Tomasz Zarzycka, Alicja Zhukov, Andrei

Abstract

This paper presents the current status of ASPIICS, a solar coronagraph that is the primary payload of ESA’s formation flying in-orbit demonstration mission PROBA-3. The “sonic region” of the Sun corona remains extremely difficult to observe with spatial resolution and sensitivity sufficient to understand the fine scale phenomena that govern the quiescent solar corona, as well as phenomena that lead to coronal mass ejections (CMEs), which influence space weather. Improvement on this front requires eclipse-like conditions over long observation times. The space-borne coronagraphs flown so far provided a continuous coverage of the external parts of the corona but their over-occulting system did not permit to analyse the part of the white-light corona where the main coronal mass is concentrated. The PROBA-3 Coronagraph System, also known as ASPIICS (Association of Spacecraft for Polarimetric and Imaging Investigation of the Corona of the Sun) is designed as a classical externally occulted Lyot coronagraph but it takes advantage of the opportunity to place the external occulter on a companion spacecraft, about 150m apart, to perform high resolution imaging of the inner corona of the Sun as close as similar to 1.1 solar radii. The images will be tiled and compressed on board in an FPGA before being down-linked to ground for scientific analyses. ASPIICS is built by a large European consortium including about 20 partners from 7 countries under the auspices of the European Space Agency. This paper is reviewing the recent development status of the ASPIICS instrument as it is approaching CDR.

Published
2016

9. Recent achievements on ASPIICS, an externally occulted coronagraph for PROBA-3

Author

Renotte, Etienne, additional, Buckley, Steve, additional, Cernica, Ileana, additional, Denis, François, additional, Desselle, Richard, additional, De Vos, Lieve, additional, Fineschi, Silvano, additional, Fleury-Frenette, Karl, additional, Galano, Damien, additional, Galy, Camille, additional, Gillis, Jean-Marie, additional, Graas, Estelle, additional, Graczyk, Rafal, additional, Horodyska, Petra, additional, Kranitis, Nektarios, additional, Kurowski, Michal, additional, Ladno, Michal, additional, Liebecq, Sylvie, additional, Loreggia, Davide, additional, Mechmech, Idriss, additional, Melich, Radek, additional, Mollet, Dominique, additional, Mosdorf, Michał, additional, Mroczkowski, Mateusz, additional, O’Neill, Kevin, additional, Patočka, Karel, additional, Paschalis, Antonis, additional, Peresty, Radek, additional, Radzik, Bartlomiej, additional, Rataj, Miroslaw, additional, Salvador, Lucas, additional, Servaye, Jean-Sébastien, additional, Stockman, Yvan, additional, Thizy, Cédric, additional, Walczak, Tomasz, additional, Zarzycka, Alicja, additional, and Zhukov, Andrei, additional

Published
2016
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11. Development of ASPIICS: a coronagraph based on Proba-3 formation flying mission

Author

Lystrup, Makenzie, MacEwen, Howard A., Fazio, Giovanni G., Batalha, Natalie, Siegler, Nicholas, Tong, Edward C., Galano, Damien, Bemporad, Alessandro, Buckley, Steve, Cernica, Ileana, Dániel, Vladimír, Denis, François, de Vos, Lieve, Fineschi, Silvano, Galy, Camille, Graczyk, Rafal, Horodyska, Petra, Jacob, Jérôme, Jansen, Richard, Kranitis, Nektarios, Kurowski, Michal, Ladno, Michal, Ledent, Philippe, Loreggia, Davide, Melich, Radek, Mollet, Dominique, Mosdorf, Michal, Paschalis, Antonios, Peresty, Radek, Purica, Munizer, Radzik, Bartlomiej, Rataj, Miroslaw, Rougeot, Raphaël, Salvador, Lucas, Thizy, Cédric, Versluys, Jorg, Walczak, Tomasz, Zarzycka, Alicja, Zender, Joe, and Zhukov, Andrei

Published
2018
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14. Recent achievements on ASPIICS, an externally occulted coronagraph for PROBA-3

Author

MacEwen, Howard A., Fazio, Giovanni G., Lystrup, Makenzie, Batalha, Natalie, Siegler, Nicholas, Tong, Edward C., Renotte, Etienne, Buckley, Steve, Cernica, Ileana, Denis, François, Desselle, Richard, De Vos, Lieve, Fineschi, Silvano, Fleury-Frenette, Karl, Galano, Damien, Galy, Camille, Gillis, Jean-Marie, Graas, Estelle, Graczyk, Rafal, Horodyska, Petra, Kranitis, Nektarios, Kurowski, Michal, Ladno, Michal, Liebecq, Sylvie, Loreggia, Davide, Mechmech, Idriss, Melich, Radek, Mollet, Dominique, Mosdorf, Michał, Mroczkowski, Mateusz, O’Neill, Kevin, Patočka, Karel, Paschalis, Antonis, Peresty, Radek, Radzik, Bartlomiej, Rataj, Miroslaw, Salvador, Lucas, Servaye, Jean-Sébastien, Stockman, Yvan, Thizy, Cédric, Walczak, Tomasz, Zarzycka, Alicja, and Zhukov, Andrei

Published
2016
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