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23 results on '"Dauderstädt, Ulrike A."'

1. Considerations for a Micromirror Array Optimized for Compressive Sensing (VIS to MIR) in Space Applications.

Author

Dauderstädt, Ulrike, Dürr, Peter, Kunze, Detlef, Francés González, Sara, Borrelli, Donato, Palombi, Lorenzo, Raimondi, Valentina, and Wagner, Michael

Abstract

Earth observation (EO) is crucial for addressing environmental and societal challenges, but it struggles with revisit times and spatial resolution. The EU-funded SURPRISE project aims to improve EO capabilities by studying space instrumentation using compressive sensing (CS) implemented through spatial light modulators (SLMs) based on micromirror arrays (MMAs) to improve the ground sampling distance. In the SURPRISE project, we studied the development of an MMA that meets the requirements of a CS-based geostationary instrument working in the visible (VIS) and mid-infrared (MIR) spectral ranges. This paper describes the optical simulation procedure and the results obtained for analyzing the performance of such an MMA with the goal of identifying a mirror design that would allow the device to meet the optical requirements of this specific application. [ABSTRACT FROM AUTHOR]

Published
2024
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2. Exploring the Potential of Compressive Sensing Payloads for Earth Observation from Geostationary Platforms: An Instrumental Concept for Fire Monitoring

Author

Borrelli, Donato, primary, Baldi, Massimo, additional, Berndt, Dirk, additional, Bertoncini, Lucas, additional, Bianchi, Tiziano, additional, Bischof, Lionel, additional, Borque Gallego, Guzman, additional, Carlà, Roberto, additional, Coppo, Peter, additional, Corti, Chiara, additional, Corti, Francesco, additional, Corti, Marco, additional, Cox, Nick, additional, Dauderstädt, Ulrike A., additional, Dürr, Peter, additional, Franci, Enrico, additional, González, Sara Francés, additional, Gonnelli, Andrea, additional, Guerri, Irene, additional, Guzzi, Donatella, additional, Humbert, Stéphane, additional, Labate, Demetrio, additional, Lamquin, Nicolas, additional, Lastri, Cinzia, additional, Magli, Enrico, additional, Marzi, Emiliano, additional, Migliorati, Andrea, additional, Nardino, Vanni, additional, Pache, Christophe, additional, Palombi, Lorenzo, additional, Piccirillo, Alice Maria, additional, Pilato, Giuseppe, additional, Suetta, Enrico, additional, Taddei, Dario, additional, Valsesia, Diego, additional, Wagner, Michael, additional, and Raimondi, Valentina, additional

Published
2023
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3. Exploring the Potential of Compressive Sensing Payloads for Earth Observation from Geostationary Platforms: An Instrumental Concept for Fire Monitoring †.

Author

Borrelli, Donato, Baldi, Massimo, Berndt, Dirk, Bertoncini, Lucas, Bianchi, Tiziano, Bischof, Lionel, Borque Gallego, Guzman, Carlà, Roberto, Coppo, Peter, Corti, Chiara, Corti, Francesco, Corti, Marco, Cox, Nick, Dauderstädt, Ulrike A., Dürr, Peter, Franci, Enrico, González, Sara Francés, Gonnelli, Andrea, Guerri, Irene, and Guzzi, Donatella

Subjects
SPATIAL light modulators, SPATIAL resolution, WILDFIRES
Abstract

Earth observation (EO) payload performances in the infrared spectral region from geostationary platforms are often limited by spatial resolution. In this paper, we investigate an instrumental concept leveraging a compressive sensing paradigm and super-resolution architecture to implement an EO payload from a geostationary platform aimed at the monitoring of wildfires with a nominal spatial sampling distance of 500 m. The core device of the instrument is a European-technology-based micromirror array under study for space applications. Besides payload specifications and working principles, the main critical aspects and the expected impact on EO applications are discussed. [ABSTRACT FROM AUTHOR]

Published
2023
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5. Compressive sensing instrumental concepts for space applications

Author

Raimondi, Valentina, primary, Baldi, Massimo, additional, Berndt, Dirk, additional, Bianchi, Tiziano, additional, Borque Gallego, Guzmán, additional, Borrelli, Donato, additional, Corti, Chiara, additional, Corti, Francesco, additional, Corti, Marco, additional, Dauderstädt, Ulrike ., additional, Dürr, Peter, additional, Gonnelli, Andrea, additional, Francés González, Sara, additional, Guzzi, Donatella, additional, Kunze, Detlef, additional, Labate, Demetrio, additional, Lamquin, Nicolas, additional, Lastri, Cinzia, additional, Magli, Enrico, additional, Marzi, Emiliano, additional, Nardino, Vanni, additional, Pache, Christophe, additional, Palombi, Lorenzo, additional, Pilato, Giuseppe, additional, Suetta, Enrico, additional, Valsesia, Diego, additional, and Wagner, Michael, additional

Published
2022
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6. Towards a spatial light modulator technology for space applications: performance analysis under the environmental conditions

Author

Minoglou, Kyriaki, Karafolas, Nikos, Cugny, Bruno, Francés González, Sara, Berndt, Dirk, Borque Gallego, Guzmán, Borrelli, Donato, Dauderstädt, Ulrike, Dürr, Peter, Eckert, Markus, Heber, Jörg, Kunze, Detlef, Pache, Christophe, Pilato, Giuseppe, Raimondi, Valentina, Suetta, Enrico, Torlee, Hannes, Ummel, Antoine, and Wagner, Michael

Published
2023
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7. Designing a Compressive Sensing Demonstrator of an Earth Observation Payload in the Visible and Medium Infrared: Instrumental Concept and Main Features

Author

Raimondi, Valentina, primary, Acampora, Luigi, additional, Baldi, Massimo, additional, Berndt, Dirk, additional, Bianchi, Tiziano, additional, Borrelli, Donato, additional, Corti, Chiara, additional, Corti, Francesco, additional, Corti, Marco, additional, Cox, Nick, additional, Dauderstädt, Ulrike A., additional, Dürr, Peter, additional, Fruchi, Alberto, additional, González, Sara Francés, additional, Guzzi, Donatella, additional, Kunze, Detlef, additional, Labate, Demetrio, additional, Lamquin, Nicolas, additional, Lastri, Cinzia, additional, Magli, Enrico, additional, Nardino, Vanni, additional, Pache, Christophe, additional, Palombi, Lorenzo, additional, Pilato, Giuseppe, additional, Pollini, Alexandre, additional, Suetta, Enrico, additional, Taddei, Dario, additional, Taricco, Davide, additional, Valsesia, Diego, additional, and Wagner, Michael, additional

Published
2021
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9. The SURPRISE demonstrator: a super-resolved compressive instrument in the visible and medium infrared for Earth Observation

Author

Valentina, Raimondi, Luigi, Acampora, Gabriele, Amato, Massimo, Baldi, Dirk, Berndt, Alberto, Bianchi, Bianchi, Tiziano, Valentina, Colcelli, Chiara, Corti, Francesco, Corti, Marco, Corti, Nick, Cox, Dauderstädt, Ulrike A., Peter, Dürr, Sara Francés González, Paolo, Frosini, Donatella, Guzzi, Jessica, Huntingford, Demetrio, Labate, Nicolas, Lamquin, Cinzia, Lastri, Magli, Enrico, Vanni, Nardino, Lorenzo, Palombi, Irene, Pettinelli, Giuseppe, Pilato, Alexandre, Pollini, Leopoldo, Rossini, Enrico, Suetta, Taricco, Davide, Valsesia, Diego, and Michael, Wagner

Published
2020

10. Compressive sensing instrumental concepts for space applications

Author

Georges, Marc P., Popescu, Gabriel, Verrier, Nicolas, Raimondi, Valentina, Baldi, Massimo, Berndt, Dirk, Bianchi, Tiziano, Borque Gallego, Guzmán, Borrelli, Donato, Corti, Chiara, Corti, Francesco, Corti, Marco, Dauderstädt, Ulrike A., Dürr, Peter, Gonnelli, Andrea, Francés González, Sara, Guzzi, Donatella, Kunze, Detlef, Labate, Demetrio, Lamquin, Nicolas, Lastri, Cinzia, Magli, Enrico, Marzi, Emiliano, Nardino, Vanni, Pache, Christophe, Palombi, Lorenzo, Pilato, Giuseppe, Suetta, Enrico, Valsesia, Diego, and Wagner, Michael

Published
2022
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11. Super-resolved compressive demonstrator for Earth Observation applications in the Medium Infrared: instrumental concept, optical design and expected performances.

Author

Raimondi, Valentina, Baldi, Massimo, Berndt, Dirk, Bianchi, Tiziano, Borque Gallego, Guzmán, Borrelli, Donato, Carlà, Roberto, Corti, Chiara, Corti, Francesco, Corti, Marco, Dauderstädt, Ulrike, Dürr, Peter, Gonnelli, Andrea, Francés González, Sara, Guzzi, Donatella, Labate, Demetrio, Lamquin, Nicolas, Lastri, Cinzia, Magli, Enrico, and Marzi, Emiliano

Published
2024
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14. In situ bow change of Al-alloy MEMS micromirrors during 248-nm laser irradiation

Author

Mai, Alexander, Bunce, Christopher, Hübner, René, Pahner, Daniel, Dauderstädt, Ulrike, and Publica

Subjects
micromirror array, in situ, Laser, micro-(opto)-electro-mechanical-system device, spatial light modulator, laser, UV
Abstract

Micromirror based spatial light modulators (SLMs) developed by the Fraunhofer Institute for Photonic Microsystems are well established in microlithography applications. Serving, e.g., as reflective, programmable photomasks in deep-UV mask writers, they enable highly flexible pattern generation. During operation, the micromirror bow significantly impacts contrast and the resolvable feature size of generated patterns. In some situations, MEMS micromirrors tend to change their bow during laser irradiation. A test regime including a characterization unit for the in situ analysis of MEMS micromirror topology has been developed to measure the bow change under various irradiation conditions. Experiments in which SLMs were irradiated by a 1-kHz, 248-nm pulse laser revealed that mirror bowing can occur in both directions (concave and convex). The bowing direction is dependent upon the applied irradiation parameters such as pulse-energy density, pulse number, and the deposited energy. Sustained irradiation at energy densities exceeding a certain limit can potentially become a limiting factor for the resolvable feature sizes of the patterns generated and, therefore, for the usable SLM lifespan.

Published
2016

16. Super-resolved compressive demonstrator for Earth Observation applications in the Medium Infrared: instrumental concept, optical design and expected performances

Author

Minoglou, Kyriaki, Karafolas, Nikos, Cugny, Bruno, Raimondi, Valentina, Baldi, Massimo, Berndt, Dirk, Bianchi, Tiziano, Borque Gallego, Guzmán, Borrelli, Donato, Carlà, Roberto, Corti, Chiara, Corti, Francesco, Corti, Marco, Dauderstädt, Ulrike, Dürr, Peter, Gonnelli, Andrea, Francés González, Sara, Guzzi, Donatella, Labate, Demetrio, Lamquin, Nicolas, Lastri, Cinzia, Magli, Enrico, Marzi, Emiliano, Nardino, Vanni, Pache, Christophe, Palombi, Lorenzo, Pilato, Giuseppe, Suetta, Enrico, Valsesia, Diego, and Wagner, Michael

Published
2023
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19. Advances in SLM development for microlithography

Author

Dauderstädt, Ulrike, primary, Askebjer, Per, additional, Björnängen, Peter, additional, Dürr, Peter, additional, Friedrichs, Martin, additional, List, Matthias, additional, Rudloff, Dirk, additional, Schmidt, Jan-Uwe, additional, Müller, Michael, additional, and Wagner, Michael, additional

Published
2009
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20. Compressive sensing instrumental concepts for space applications.

Author

Raimondi, Valentina, Baldi, Massimo, Berndt, Dirk, Bianchi, Tiziano, Borque Gallego, Guzmán, Borrelli, Donato, Corti, Chiara, Corti, Francesco, Corti, Marco, Dauderstädt, Ulrike A., Dürr, Peter, Gonnelli, Andrea, Francés González, Sara, Guzzi, Donatella, Kunze, Detlef, Labate, Demetrio, Lamquin, Nicolas, Lastri, Cinzia, Magli, Enrico, and Marzi, Emiliano

Published
2022
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