Dr. Roman Windpassinger Profile

Dr. Roman Windpassinger

Optical Payload Engineer at European Space Agency, ESA ESTEC

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Publications (9)

Proceedings Article | 19 October 2023 Presentation + Paper

Development of the TANGO carbon instrument for greenhouse gas detection

James Day, Benjamin Brenny, Emanuela Palombo, Bryan de Goeij, Bas Ouwerkerk, Grzegorz Misiun, Martin Lemmen, Nurcan Alpay Koc, Anton Leemhuis, Jochen Landgraf, Davit Sivil, Bernhard Michel, Agne Paskeviciute, Christophe Buisset, Roman Windpassinger, Alizee Malavart

Proceedings Volume 12735, 127350I (2023) https://doi.org/10.1117/12.2680270

KEYWORDS: Carbon dioxide, Methane, Equipment, Carbon, Spectroscopy, Telescopes, Spatial resolution, Signal to noise ratio, Tolerancing, Optical alignment, Mirrors

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Proceedings Article | 12 July 2023 Open Access

Light scattering from diffraction gratings

Martin Heusinger, Marcus Trost, Ralf Steinkopf, Ralf Kohlhaas, Dana Tomuta, Roman Windpassinger, Stefan Risse, Uwe Zeitner

Proceedings Volume 12777, 127772K (2023) https://doi.org/10.1117/12.2689997

KEYWORDS: Diffraction gratings, Echelle gratings, Optical gratings, Reflection gratings, Diffraction, Simulations, Light scattering, Binary data, Spectroscopy, Silicon

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Proceedings Article | 12 July 2023 Open Access

Compact static interferometer instrument studies for greenhouse gas detection

Flavio Mariani, Denis Simeoni, Nurcan Alpay Koc, Vitalii Khodnevych, Nicolas Tetaz, Bruno Chetrite, Mikael Carlavan, Stephane Ferron, Jean-Luc Vergely, Nick van der Valk, Hedser van Brug, Benjamin Brenny, Huib Visser, Jochen Landgraf, Stephanie Rusli, Roman Windpassinger, Bernd Sierk

Proceedings Volume 12777, 127771V (2023) https://doi.org/10.1117/12.2689941

KEYWORDS: Equipment, Carbon monoxide, Optical path differences, Interferometers, Near infrared, Short wave infrared radiation, Aerosols, Atmospheric modeling, Astronomical imaging, Spatial resolution

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Proceedings Article | 28 October 2022 Paper

CarbonCGI road map to observe faint GHG source’s emissions with high resolution observing system

D. Siméoni, F. Graziosi, G. Broquet, P. Kumar, P. Ciais, J. Vergely, S. Ferron, V. Khodnevych, M. Carlavan, B. Chétrite, N. Tetaz, C. Delzenne, N. Guercio, H. Boesch, L. Vogel, F. Mariani, R. Windpassinger, B. Sierk

Proceedings Volume 12264, 122640D (2022) https://doi.org/10.1117/12.2638495

KEYWORDS: Atmospheric modeling, Sensors, Imaging systems, Aerosols, Near infrared, Radiative transfer, Modeling, Carbon dioxide, Interferometers, Image registration

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Proceedings Article | 11 June 2021 Open Access

The Copernicus CO2M mission for monitoring anthropogenic carbon dioxide emissions from space

Bernd Sierk, Valerie Fernandez, J.-L. Bézy, Y. Meijer, Y. Durand, G. Bazalgette Courrèges-Lacoste, C. Pachot, A. Löscher, H. Nett, K. Minoglou, L. Boucher, R. Windpassinger, A. Pasquet, D. Serre, F. te Hennepe

Proceedings Volume 11852, 118523M (2021) https://doi.org/10.1117/12.2599613

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The European Space Agency (ESA), in collaboration with the European Commission (EC) and EUMETSAT, is developing a space-borne observing system for quantification of anthropogenic carbon dioxide (CO2) emissions. Forming part of the EC's Copernicus programme, the CO2 monitoring (CO2M) mission will be implemented as a constellation of identical satellites, to be operated over a period > 7 years and measuring CO2 concentration in terms of column-averaged mole fraction (denoted as XCO2). Each satellite will continuously image XCO2 along the satellite track on the sun-illuminated part of the orbit, with a swath width of >250 km. Observations will be provided at a spatial resolution < 2 x 2 km2 near the swath center, with high precision (<0.7 ppm) and accuracy (bias <0.5 ppm). To this end, the payload comprises a suite of instruments addressing the various aspects of the challenging observation requirements: A push-broom imaging spectrometer will perform co-located measurements of top-of-atmosphere radiances in the Near Infrared (NIR) and Short-Wave Infrared (SWIR) at high to moderate spectral resolution (NIR: 747-773nm@0.1nm, SWIR-1: 1595-1675nm@0.3nm, SWIR-2: 1990-2095nm@0.35nm). These observations are complemented by measurements in the visible spectral range (405-490 nm@0.6nm), providing vertical column measurements of nitrogen dioxide (NO2) that serve as a tracer to assist the detection of fossil-fuel emission plumes (e.g. from coal-fired power plants and cities). High quality retrievals of XCO2 will be ensured even over polluted industrial regions, thanks to co-located measurements of aerosols performed by a Multiple-Angle Polarimeter (MAP). Finally, measurements of a three-band Cloud Imager, co-registered with the CO2 observations, will provide the required cloud-flagging capacity at sub-sample level (<200m resolution). The presentation will review the results of the Phase A/B1 instrument studies carried out in 2018-2019, including technology pre-development activities, and highlight the identified engineering challenges. The preliminary design of the CO2M mission’s instruments at the beginning of the implementation phase will be presented, along with an outlook on the development activities under the Phase B2CD programme.

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Proceedings Article | 12 July 2019 Open Access

Binary blazed reflection grating for UV/VIS/NIR/SWIR spectral range

Frank Burmeister, Thomas Flügel-Paul, Uwe Zeitner, Mane-Si-Laure Lee Bouhours, Gaëlle Lehoucq, Julie Cholet, Brigitte Loiseaux, Nicolas Tetaz, Roman Windpassinger, Matteo Taccola

Proceedings Volume 11180, 111801J (2019) https://doi.org/10.1117/12.2535974

KEYWORDS: Diffraction gratings, Diffraction, Binary data, Optical design, Manufacturing, Nanoimprint lithography, Prototyping, Electron beam lithography, Ultraviolet radiation, Silicon

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Proceedings Article | 17 November 2017 Open Access

Proposed concept and preliminary design for the sentinel-5 UVNs spectrometer

R. Windpassinger, J. Schubert, D. Kampf

Proceedings Volume 10563, 1056343 (2017) https://doi.org/10.1117/12.2304203

KEYWORDS: Spectroscopy, Telescopes, Space telescopes, Polarization, Calibration, Optical design, Beam splitters, Diffraction gratings, Astronomical imaging, Ultraviolet radiation

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Proceedings Article | 17 December 2003 Paper

EUV mask simulation for AIMS

Roman Windpassinger, Norbert Rosenkranz, Thomas Scherubl, Peter Evanschitzky, Andreas Erdmann, Axel Zibold

Proceedings Volume 5256, (2003) https://doi.org/10.1117/12.518053

KEYWORDS: Photomasks, Extreme ultraviolet, Extreme ultraviolet lithography, Critical dimension metrology, Semiconducting wafers, Imaging systems, Lithographic illumination, Reticles, EUV optics, Wafer-level optics

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Proceedings Article | 15 December 1998 Paper

Quantitative analysis of flue gas FTIR-spectra employing a new mathematical method to determine the instrumental line shape

Roman Windpassinger

Proceedings Volume 3493, (1998) https://doi.org/10.1117/12.332666

KEYWORDS: Mathematical modeling, Integration, Algorithm development, Quantitative analysis, Shape analysis

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