Dr. Christophe Pache Profile

Dr. Christophe Pache

at CSEM SA

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 12 July 2023 Open Access

Front-window replacement and performance characterization of a commercial digital micro-mirror device for use in the infrared spectrum

G. Borque Gallego, L. Giriens, A. Ummel, J.-C. Roulet, D. Guzzi, V. Raimondi, C. Pache

Proceedings Volume 12777, 127777M (2023) https://doi.org/10.1117/12.2691450

KEYWORDS: Digital micromirror devices, Windows, Micromirrors, Sapphire, Switching, Mid-IR, Indium, Epoxies, Astronomical imaging, Spatial light modulators

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Proceedings Article | 12 July 2023 Open Access

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

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

Proceedings Volume 12777, 1277741 (2023) https://doi.org/10.1117/12.2690634

KEYWORDS: Reconstruction algorithms, Image restoration, Image compression, Digital micromirror devices, Equipment, Infrared radiation, Spatial light modulators, Interfaces, Channel projecting optics, Super resolution

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Proceedings Article | 12 July 2023 Open Access

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

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

Proceedings Volume 12777, 127773U (2023) https://doi.org/10.1117/12.2690567

KEYWORDS: Vacuum chambers, Temperature metrology, Spatial light modulators, Vibration, Mirrors, Micromirrors, Vacuum, Astronomical imaging, Aerospace engineering, Windows

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Proceedings Article | 12 July 2023 Open Access

Verification of straylight rejection of optical science payloads using a pulsed laser source

Antoine Ummel, Jean-Christophe Roulet, Jannis Holzer, Fabien Droz, Thomas Weigel, Lionel Clermont, Marc Georges, Juliana Abrantes, Dana Tomuta, Kate Isaak, Dominc Doyle, Micael Miranda, Christophe Pache

Proceedings Volume 12777, 127774O (2023) https://doi.org/10.1117/12.2690880

KEYWORDS: Baffles, Mirrors, Picosecond phenomena, Design and modelling, Optical surfaces, Breadboards, Telescopes, Astronomical imaging, Mirror surfaces, Pulsed laser operation

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Proceedings Article | 20 May 2022 Presentation + Paper

Compressive sensing instrumental concepts for space applications

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

Proceedings Volume 12136, 121360B (2022) https://doi.org/10.1117/12.2625305

KEYWORDS: High resolution satellite images, Spatial light modulators, Sensors, Micromirrors, Compressed sensing, Data acquisition, Super resolution, Aerospace engineering, Modulation, Image compression, Infrared radiation

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Proceedings Article | 26 April 2016 Presentation

Three dimensional time lapse imaging of live cell mitochondria with photothermal optical lock-in optical coherence microscopy (Conference Presentation)

Miguel Sison, Sabyasachi Chakrabortty, Jerome Extermann, Amir Nahas, Christophe Pache, Tanja Weil, Theo Lasser

Proceedings Volume 9697, 96971Y (2016) https://doi.org/10.1117/12.2214761

KEYWORDS: 3D image processing, Live cell imaging, Optical coherence microscopy, Nanoparticles, Coherence (optics), Microscopes, Gold, Luminescence, Confocal microscopy, Optical coherence tomography

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Proceedings Article | 3 March 2010 Paper

Flicker stimulated retinal perfusion changes assessed with high-speed Doppler tomography

Tilman Schmoll, Amardeep S. Singh, Karine Frily, Cedric Blatter, Martin Villiger, Christoph Pache, Theo Lasser, R. Leitgeb

Proceedings Volume 7550, 75500F (2010) https://doi.org/10.1117/12.842922

KEYWORDS: Doppler tomography, Optical coherence tomography, Algorithm development, Optic nerve, Head, Arteries, Pathology, Pathogens, Functional imaging, Physiology

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SPIE Journal Paper | 1 March 2010 Open Access

Digital holographic microscopy real-time monitoring of cytoarchitectural alterations during simulated microgravity

Christophe Pache, Jonas Kühn, Kriss Westphal, Muhammed Fatih Toy, Jérôme Parent, Oralea Buchi, Alfredo Franco-Obregon, Christian Depeursinge, Marcel Egli

JBO, Vol. 15, Issue 02, 026021, (March 2010) https://doi.org/10.1117/12.10.1117/1.3377960

KEYWORDS: Microscopy, Digital holography, Luminescence, Cytoskeletons, Computer simulations, Holography, Proteins, Control systems, Refractive index, Phase measurement

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Proceedings Article | 24 February 2010 Paper

Dual-mode digital holographic and fluorescence microscopy for the study of morphological changes in cells under simulated microgravity

M. Fatih Toy, Christophe Pache, Jérôme Parent, Jonas Kühn, Marcel Egli, Christian Depeursinge

Proceedings Volume 7570, 75700A (2010) https://doi.org/10.1117/12.842779

KEYWORDS: Microscopy, Luminescence, Microscopes, Digital holography, Holography, Beam splitters, Optical simulations, Computer simulations, Proteins, Optical filters

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Proceedings Article | 20 February 2010 Paper

Coherent transfer functions and extended depth of field

M. Villiger, C. Pache, Rainer Leitgeb, Theo Lasser

Proceedings Volume 7554, 755417 (2010) https://doi.org/10.1117/12.840819

KEYWORDS: Contrast transfer function, Signal detection, Focus stacking, Spatial frequencies, Axicons, Optical coherence microscopy, Spectroscopy, Objectives, Point spread functions, Lenses

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Proceedings Article | 20 February 2010 Paper

Dark-field optical coherence microscopy

C. Pache, M. Villiger, T. Lasser

Proceedings Volume 7554, 755425 (2010) https://doi.org/10.1117/12.842848

KEYWORDS: Optical coherence microscopy, Microscopy, Light scattering, Glasses, Interfaces, Signal detection, Objectives, Axicons, Specular reflections, Interferometry

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Proceedings Article | 14 July 2009 Paper

In vivo imaging of pancreatic endocrine islets

Martin Villiger, Joan Goulley, Christophe Pache, Michael Friedrich, Anne Grapin-Botton, Paolo Meda, Rainer Leitgeb, Theo Lasser

Proceedings Volume 7372, 73720E (2009) https://doi.org/10.1117/12.831864

KEYWORDS: Pancreas, In vivo imaging, Tissues, Axicons, Scanners, Visualization, Glucose, Signal detection, Blood vessels, 3D image processing

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Proceedings Article | 20 February 2008 Paper

Real-time dual-wavelength digital holographic microscopy for extended measurement range with enhanced axial resolution

Jonas Kühn, Tristan Colomb, Christophe Pache, Florian Charrière, Frédéric Montfort, Etienne Cuche, Yves Emery, Pierre Marquet, Christian Depeursinge

Proceedings Volume 6861, 68610J (2008) https://doi.org/10.1117/12.763291

KEYWORDS: Digital holography, Wavefronts, Holograms, Microscopy, Wave propagation, 3D image reconstruction, Holography, Interferometry, Resolution enhancement technologies, 3D image processing

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Proceedings Article | 5 March 2007 Paper

Measurement of retinal physiology using functional Fourier domain OCT concepts

R. Leitgeb, A. Bachmann, M. Villiger, R. Michaely, C. Blatter, T. Lasser, C. Pache, M. Pircher

Proceedings Volume 6426, 642609 (2007) https://doi.org/10.1117/12.702232

KEYWORDS: Doppler effect, Optical coherence tomography, Spectroscopy, Physiology, Functional imaging, Tissue optics, Blood circulation, Polarization, Doppler tomography, Tissues

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Showing 5 of 14 publications

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