Dr. Guillaume Druart Profile

Dr. Guillaume Druart

Senior Research Scientist at ONERA

SPIE Involvement:

Author

Publications (41)

Proceedings Article | 15 May 2024 Paper

Study of a freeform reimaging TMA for nanosatellite long wave infrared (LWIR) imaging applications using a cooled detector

Clément Freslier, Jean-Baptiste Volatier, Guillaume Druart, Thierry Lépine, Christophe Buisset, Tibor Agocs, Arnaud Hélière

Proceedings Volume 12798, 127982O (2024) https://doi.org/10.1117/12.2692549

KEYWORDS: Long wavelength infrared, Infrared radiation, Infrared imaging, Infrared detectors, Mirrors, Infrared sensors, Design, Cryogenics, Space mirrors, Sensors

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Proceedings Article | 15 May 2024 Paper

Automatic exploration of the landscape of optical problem using the simultaneous multiple surfaces method

Thibaut Mayeur, Jean-Baptiste Volatier, Guillaume Druart, Francoise Cau, Elodie Tartas, Alain Durand

Proceedings Volume 12798, 127982H (2024) https://doi.org/10.1117/12.2692539

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Proceedings Article | 14 September 2023 Paper

Depth of focus extension wavefront coding methods for fast imaging systems

Alice Fontbonne, Pauline Trouvé-Peloux, Elodie Tartas, Guillaume Druart

Proceedings Volume 12798, 127981M (2023) https://doi.org/10.1117/12.2692127

KEYWORDS: Wavefronts, Optical surfaces, Modulation transfer functions, Imaging systems, Zemax, Etching, Digital signal processing, Diffractive optical elements, Design and modelling

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Proceedings Article | 12 July 2023 Open Access

Study and proof of concept of a freeform TMA designed for nanosat space infrared imaging applications

Clément Freslier, Guillaume Druart, Jean-Baptiste Volatier, Thierry Lépine, Arnaud Helière, Christophe Buisset, Tibor Agocs

Proceedings Volume 12777, 1277773 (2023) https://doi.org/10.1117/12.2691377

KEYWORDS: Mirrors, Manufacturing, Optical surfaces, Design and modelling, Astronomical imaging, Infrared imaging, Mirror surfaces, Space mirrors, Thermography, Optical design

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Proceedings Article | 3 October 2022 Paper

Femtosecond laser direct writing of a gradient index Fresnel lens in a heavy oxide glass

Pierre Delullier, Guillaume Druart, Florence de la Barrière, Matthieu Lancry

Proceedings Volume 12216, 1221602 (2022) https://doi.org/10.1117/12.2632081

KEYWORDS: Fresnel lenses, GRIN lenses, Glasses, Diffraction, Femtosecond phenomena, Cameras, Refractive index, Modulation transfer functions, Gradient-index optics

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Proceedings Article | 3 October 2022 Paper

Simultaneous multiple surfaces method applied to infrared lenses

T. Mayeur, J. B. Volatier, G. Druart, E. Tartas, A. Durand, F. Cau

Proceedings Volume 12217, 1221702 (2022) https://doi.org/10.1117/12.2632432

KEYWORDS: Optical design, Sensors, Zemax, Long wavelength infrared, Ray tracing, Computing systems, Silicon, Optical design software, Freeform optics

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Proceedings Article | 27 May 2022 Paper

Evaluation of the potential of high index chalcogenide lenses for automotive applications

Guillaume Druart, Valentin Reux, Laurent Calvez, Xiang-Hua Zhang, Florence De La Barrière, Jean-Baptiste Volatier, Elodie Tartas, Raphael Proux

Proceedings Volume 12103, 121030D (2022) https://doi.org/10.1117/12.2618287

KEYWORDS: Sensors, Lens design, Silicon, Lenses, Glasses, Thermography, Chalcogenide glass, Refraction, Refractive index, Optical design

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Infrared cameras could serve automotive applications by delivering breakthrough perception systems for both in-cabin passengers monitoring and car surrounding. However, low-cost and high-throughput manufacturing methods are essential to sustain the growth in thermal imaging markets for automotive applications, and for other close-to-consumer applications, which have a fast growth potential. With the reduction of the pixel pitch of microbolometer detectors, their cost has decreased considerably and now the optical part represents a significant part of the system cost. Fast low cost infrared lenses suitable for microbolometers are already sold by companies like Umicore, Lightpath, FLIR… Chalcogenide glasses are widely used as materials for optics because they have many cost advantages, especially due to the possibility of mass molding the optics. However, with the reduction of the pixel pitch, it is more and more difficult to design high performance lenses with a limited number of optics. The possibility of molding the optics allows us to use many highly aspherical surfaces at affordable costs. However, Chalcogenide glasses have usually a lower refractive index than other more expensive infrared materials such as Germanium. Indeed, high refractive index materials are known to be effective in attenuating the amplitude of many geometric aberrations. In this presentation, we evaluate the interest of high index Chalcogenide lenses, especially TGG and TGS, to design optical systems meeting the needs of the automobile with a limited number of optics. TGG glass has an index of refraction of 3.396 at a wavelength of 10µm, i.e. its index of refraction is close to the Silicon one and was initially studied for space applications. TGS has a lower index of refraction (3.12@10µm) but can be used in a cost effective manufacturing process by using flash spark plasma sintering (SPS) on raw powder. Demonstrators with TGG glass have been made and their performance evaluated.

Proceedings Article | 28 October 2021 Presentation + Paper

Femtosecond laser direct writing of a Fresnel zone plate in glasses for mid-infrared imaging applications

Pierre Delullier, Guillaume Druart, Florence de la Barrière, Laurent Calvez, Matthieu Lancry

Proceedings Volume 11889, 1188912 (2021) https://doi.org/10.1117/12.2600695

KEYWORDS: GRIN lenses, Fresnel lenses, Femtosecond phenomena, Gradient-index optics, Cameras, Mid-IR, Glasses, Sensors

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Proceedings Article | 12 September 2021 Presentation + Paper

Study of an infrared hybrid chalcogenide silicon lenses compatible with wafer-level manufacturing process for automotive applications

Guillaume Druart, Florence de la Barrière, Jean-Baptiste C. Volatier, Elodie Tartas, Raphaël Proux, John Franks, Susanne Ehret

Proceedings Volume 11871, 118710G (2021) https://doi.org/10.1117/12.2596888

KEYWORDS: Silicon, Lenses, Sensors, Chalcogenides, Modulation transfer functions, Tolerancing, Optics manufacturing, Manufacturing, Thermography, Wafer-level optics

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Proceedings Article | 11 June 2021 Open Access

Design strategies of an unobscured three mirror telescope with freeform surfaces for infrared nanosatellite imagery

Louis Duveau, Thierry Lépine, Emmanuel Hugot, Xavier Briottet, Guillaume Druart

Proceedings Volume 11852, 118520C (2021) https://doi.org/10.1117/12.2599153

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Proceedings Article | 12 April 2021 Presentation + Paper

Test of SIMAGAZ: a LWIR cryogenic multispectral infrared camera for methane gas leak detection and quantification

Guillaume Druart, Pierre-Yves Foucher, Stéphanie Doz, Xavier Watremez, Sophie Jourdan, Emmanuel Vanneau, Hadrien Pinot

Proceedings Volume 11727, 117270G (2021) https://doi.org/10.1117/12.2586933

KEYWORDS: Cryogenics, Methane, Infrared cameras, Long wavelength infrared, Unmanned aerial vehicles, Sensors, Cameras, Safety, Remote sensing, Infrared sensors

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Proceedings Article | 9 October 2019 Presentation + Paper

Comparison of a kaleidoscope-based multi-view infrared system with its TOMBO-based counterpart

A. Mas, G. Druart, M. Vaché, S. Favier, A. Alazarine, E. Compain, N. Morin, N. Guérineau

Proceedings Volume 11159, 111590E (2019) https://doi.org/10.1117/12.2532808

KEYWORDS: Cameras, Infrared radiation, Mirrors, Sensors, Infrared imaging, Long wavelength infrared, Microbolometers, Imaging arrays

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Proceedings Article | 5 June 2018 Paper

Integrating a compact multichannel cryogenic infrared camera in an operational detector dewar cooler assembly

Florence de la Barrière, Guillaume Druart, Nicolas Guérineau, Frédéric Champagnat, Aurélien Plyer, Serge Magli, Gilles Lasfargues

Proceedings Volume 10690, 106900R (2018) https://doi.org/10.1117/12.2313289

KEYWORDS: Modulation transfer functions, Cameras, Infrared cameras, Cryogenics, Image processing, Optical design, Super resolution, Infrared sensors

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Proceedings Article | 5 June 2018 Paper

Study of infrared optical payloads to be integrated in a nanosat

Guillaume Druart, Renaud Allioux, Philippe Perrault, Vincent Lefranc, Nathan Cariou, Laurent Rousset-Rouvière

Proceedings Volume 10690, 106900N (2018) https://doi.org/10.1117/12.2309789

KEYWORDS: Mirrors, Reflectivity, Infrared radiation, Integrated optics, Modulation transfer functions, Thermography, Satellites, Infrared imaging, Microbolometers, Chalcogenide glass

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Proceedings Article | 25 September 2017 Open Access

Intrapixel measurement techniques on large focal plane arrays for astronomical applications: a comparative study

C. Ketchazo, T. Viale, O. Boulade, F. de la Barrière, D. Dubreuil, L. Mugnier, V. Moreau, N. Guérineau, P. Mulet, G. Druart, C. Delisle

Proceedings Volume 10562, 105623D (2017) https://doi.org/10.1117/12.2296125

KEYWORDS: Sensors, Modulation transfer functions, Signal to noise ratio, Astronomical imaging, Staring arrays, Point spread functions, Laser range finders, Astronomy, Fourier transforms, Charge-coupled devices

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Proceedings Article | 27 September 2016 Presentation + Paper

Design, implementation and performance analysis of cooled infrared cameras with single FPA depth estimation capabilities

K. Cossu, G. Druart, E. Belhaire, F. Champagnat, T. Lépine

Proceedings Volume 9948, 99480B (2016) https://doi.org/10.1117/12.2237931

KEYWORDS: Infrared cameras, Cameras, Staring arrays, Infrared imaging, Microlens array, Infrared radiation, Sensors, Prisms, Error analysis, Imaging systems

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Proceedings Article | 8 August 2016 Paper

High accuracy measurements of the intrapixel sensitivity of VIS to LWIR astronomical detectors: experimental demonstration

T. Viale, C. Ketchazo, N. Guérineau, O. Boulade, F. de la Barrière, V. Moreau, L. Mugnier, D. Dubreuil, A. Bonnefois, C. Delisle, G. Druart, P. Mulet

Proceedings Volume 9915, 991517 (2016) https://doi.org/10.1117/12.2232831

KEYWORDS: Point spread functions, Sensors, Long wavelength infrared, Spatial frequencies, Deconvolution, Deconvolution, Signal to noise ratio, Error analysis, Collimators, Mirrors, Staring arrays

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Proceedings Article | 17 May 2016 Paper

Exploring the imaging properties of thin lenses for cryogenic infrared cameras

Guillaume Druart, Sebastien Verdet, Nicolas Guerineau, Serge Magli, Mathieu Chambon, Tatiana Grulois, Noura Matallah

Proceedings Volume 9822, 982214 (2016) https://doi.org/10.1117/12.2223588

KEYWORDS: Cameras, Cryogenics, Infrared cameras, Fresnel lenses, Infrared imaging, Modulation transfer functions, Integrated optics, Sensors, Optical design, Infrared radiation

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Proceedings Article | 3 June 2015 Paper

Dewar cooler integrated MWIR spectrometer for high rates and high dynamic range measurements

N. Guérineau, S. Rommeluère, Y. Ferrec, G. Druart, G. Lasfargues, E. de Borniol, S. Magli

Proceedings Volume 9482, 94820V (2015) https://doi.org/10.1117/12.2177151

KEYWORDS: Spectroscopy, Staring arrays, Mid-IR, Spectral resolution, Mercury cadmium telluride, Signal to noise ratio, Infrared radiation, FT-IR spectroscopy, Infrared spectroscopy, Cryogenics

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Proceedings Article | 26 May 2015 Paper

Development of an infrared ultra-compact multichannel camera integrated in a SOFRADIR's detector Dewar cooler assembly

F. de la Barrière, G. Druart, N. Guérineau, M. Chambon, A. Plyer, G. Lasfargues, E. de Borniol, S. Magli

Proceedings Volume 9451, 94510E (2015) https://doi.org/10.1117/12.2177065

KEYWORDS: Cameras, Sensors, Image processing, Infrared cameras, Modulation transfer functions, Cryogenics, Infrared radiation, Infrared detectors, Staring arrays, Infrared sensors

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Proceedings Article | 25 September 2014 Paper

Conception of a cheap infrared camera using a Fresnel lens

Tatiana Grulois, Guillaume Druart, Nicolas Guérineau, Arnaud Crastes, Hervé Sauer, Pierre Chavel

Proceedings Volume 9192, 91920D (2014) https://doi.org/10.1117/12.2060964

KEYWORDS: Fresnel lenses, Cameras, Sensors, Silicon, Modulation transfer functions, Long wavelength infrared, Diffraction, Infrared cameras, Infrared imaging, Infrared radiation

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Proceedings Article | 23 July 2014 Paper

A new technique of characterization of the intrapixel response of astronomical detectors

C. Ketchazo, T. Viale, O. Boulade, G. Druart, V. Moreau, L. Mugnier, D. Dubreuil, S. Derelle, S. Ronayette, N. Guérineau, M. Berthe

Proceedings Volume 9154, 91541Y (2014) https://doi.org/10.1117/12.2055721

KEYWORDS: Sensors, Point spread functions, Optical transfer functions, Staring arrays, Spatial frequencies, Mirrors, Near infrared, Charge-coupled devices, Astronomical detectors, Modulation transfer functions

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Proceedings Article | 24 June 2014 Paper

Getting small, new 10µm pixel pitch cooled infrared products

Y. Reibel, N. Pere-Laperne, T. Augey, L. Rubaldo, G. Decaens, M.-L. Bourqui, A. Manissadjian, D. Billon-Lanfrey, S. Bisotto, O. Gravrand, G. Destefanis, G. Druart, N. Guerineau

Proceedings Volume 9070, 907034 (2014) https://doi.org/10.1117/12.2051654

KEYWORDS: Sensors, Staring arrays, Signal to noise ratio, Mid-IR, Infrared radiation, Cameras, Image quality standards, Analog electronics, Infrared imaging, Imaging systems

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Proceedings Article | 24 June 2014 Paper

OSMOSIS: a new joint laboratory between SOFRADIR and ONERA for the development of advanced DDCA with integrated optics

Guillaume Druart, Noura Matallah, Nicolas Guerineau, Serge Magli, Mathieu Chambon, Pierre Jenouvrier, Eric Mallet, Yann Reibel

Proceedings Volume 9070, 90700Q (2014) https://doi.org/10.1117/12.2053889

KEYWORDS: Cameras, Integrated optics, Sensors, Infrared imaging, Optical design, Infrared radiation, Infrared cameras, Infrared sensors, Thermography, Imaging systems

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Proceedings Article | 24 June 2014 Paper

Hemispherical curved monolithic cooled and uncooled infrared focal plane arrays for compact cameras

Kevin Tekaya, Manuel Fendler, Delphine Dumas, Karim Inal, Elisabeth Massoni, Yann Gaeremynck, Guillaume Druart, David Henry

Proceedings Volume 9070, 90702T (2014) https://doi.org/10.1117/12.2049967

KEYWORDS: Staring arrays, Cameras, Bolometers, Infrared imaging, Infrared radiation, Infrared telescopes, Infrared cameras, Sensors, Spherical lenses, Lenses

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Proceedings Article | 29 May 2014 Paper

Modulation transfer function measurement of microbolometer focal plane array by Lloyd's mirror method

Guillaume Druart, Sylvain Rommeluere, Thibault Viale, Nicolas Guerineau, Isabelle Ribet-Mohamed, Arnaud Crastes, Alain Durand, Jean Taboury

Proceedings Volume 9071, 90710S (2014) https://doi.org/10.1117/12.2050396

KEYWORDS: Modulation transfer functions, Mirrors, Staring arrays, Microbolometers, Sensors, Spatial frequencies, Long wavelength infrared, Carbon dioxide lasers, Fourier transforms, Image processing

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Proceedings Article | 18 June 2013 Paper

Analysis of propellant combustion with real-time multispectral infrared camera

Emilie Sakat, Grégory Vincent, Sylvain Rommeluère, Charles Eradès, Sidonie Lefebvre, Franck Cauty, Stéphane Collin, Guillaume Druart, Jean-Luc Pelouard, Riad Haïdar

Proceedings Volume 8704, 87042R (2013) https://doi.org/10.1117/12.2015835

KEYWORDS: Cameras, Multispectral imaging, Combustion, Microlens array, Infrared cameras, Infrared imaging, Infrared radiation, Solids, Black bodies, Gold

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Proceedings Article | 18 June 2013 Paper

Cryogenic wafer-level MWIR camera: laboratory demonstration

G. Druart, F. De La Barrière, M. Chambon, N. Guérineau, G. Lasfargues, M. Fendler

Proceedings Volume 8704, 870427 (2013) https://doi.org/10.1117/12.2016371

KEYWORDS: Cameras, Modulation transfer functions, Infrared cameras, Wafer-level optics, Cryogenics, Staring arrays, Reconstruction algorithms, Optical design, Microlens, Sensors

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Proceedings Article | 31 May 2012 Paper

Integration of wide field-of-view imagery functions in a detector dewar cooler assembly

Guillaume Druart, Florence de la Barriere, Nicolas Guerineau, Gilles Lasfargues, Manuel Fendler, Nicolas Lhermet, Jean Taboury, Yann Reibel, Jean-Baptiste Moullec

Proceedings Volume 8353, 835322 (2012) https://doi.org/10.1117/12.919177

KEYWORDS: Cameras, Modulation transfer functions, Sensors, Optical design, Integrated optics, Imaging systems, Staring arrays, Infrared sensors, Infrared imaging, Cryogenics

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Proceedings Article | 5 May 2012 Paper

Design rules for IR micro cameras based on a single diffractive optical element

M. Piponnier, G. Druart, M. Brizard, N. Guérineau, J.-L. De Bougrenet, J. Primot

Proceedings Volume 8429, 842917 (2012) https://doi.org/10.1117/12.921660

KEYWORDS: Cameras, Infrared cameras, Diffractive optical elements, Axicons, Transmittance, Sensors, Point spread functions, Coded apertures, Wave propagation, Binary data

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Proceedings Article | 28 September 2011 Paper

Latest developments in advanced MCT infrared cooled detectors

Yann Reibel, Laurent Rubaldo, Gwladys Bonnouvrier, Sebastien Verdet, David Billon-Lanfrey, Gerard Destéfanis, Laurent Mollard, Jacques Baylet, Johan Rothman, Guillaume Druart, Nicolas Guerineau

Proceedings Volume 8185, 818503 (2011) https://doi.org/10.1117/12.899998

KEYWORDS: Sensors, Avalanche photodetectors, Staring arrays, Infrared detectors, Mid-IR, Medium wave, Standards development, Infrared imaging, Infrared sensors, Integrated optics

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Proceedings Article | 20 September 2011 Paper

Original design rules for simple imaging systems

Florence de la Barrière, Guillaume Druart, Nicolas Guérineau, Jean Taboury

Proceedings Volume 8167, 816704 (2011) https://doi.org/10.1117/12.891943

KEYWORDS: Imaging systems, Optical components, Sensors, Optical engineering, Current controlled current source, Aspheric lenses, Diffractive optical elements, Microlens array, Classification systems, Multichannel imaging systems

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Proceedings Article | 21 May 2011 Paper

Towards infrared DDCA with an imaging function

Guillaume Druart, Florence de la Barriere, Nicolas Guérineau, Joel Deschamps, Manuel Fendler, Nicolas Lhermet, Jacques Rulliere, Serge Magli, Yann Reibel, Jean-Baptiste Moullec

Proceedings Volume 8012, 801228 (2011) https://doi.org/10.1117/12.883396

KEYWORDS: Cameras, Sensors, Infrared imaging, Infrared radiation, Imaging systems, Optical design, Modulation transfer functions, Integrated optics, Prototyping, Infrared cameras

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Proceedings Article | 21 May 2011 Paper

Compact designs of hyper- or multispectral imagers compatible with the detector dewar

Nicolas Guérineau, Guillaume Druart, Frédéric Gillard, Yann Ferrec, Mathieu Chambon, Sylvain Rommeluère, Grégory Vincent, Riad Haïdar, Jean Taboury, Manuel Fendler

Proceedings Volume 8012, 801229 (2011) https://doi.org/10.1117/12.883904

KEYWORDS: Imaging systems, Optical filters, Staring arrays, Sensors, Interferometers, Integrated optics, Spectroscopy, Infrared imaging, Hyperspectral imaging, Cameras

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Proceedings Article | 26 August 2010 Paper

Integration of advanced optical functions near the focal plane array: first steps toward the on-chip infrared camera

Florence de la Barrière, Guillaume Druart, Nicolas Guérineau, Jean Taboury, Manuel Fendler

Proceedings Volume 7787, 778706 (2010) https://doi.org/10.1117/12.859463

KEYWORDS: Sensors, Integrated optics, Channel projecting optics, Staring arrays, Infrared cameras, Optical design, Cameras, Imaging systems, Multichannel imaging systems, Prisms

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Proceedings Article | 13 May 2010 Paper

Micro-camera and micro-spectrometer designs adapted to large infrared focal plane arrays

Nicolas Guérineau, Guillaume Druart, Florence de la Barrière, Frédéric Gillard, Sylvain Rommeluère, Jérôme Primot, Joël Deschamps, Jean Taboury, Manuel Fendler

Proceedings Volume 7716, 77160N (2010) https://doi.org/10.1117/12.859081

KEYWORDS: Infrared radiation, Spectroscopy, Infrared imaging, Staring arrays, Interferometers, Sensors, Mercury cadmium telluride, Cameras, Optical design, Eye

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Proceedings Article | 4 May 2010 Paper

Integration of advanced optical functions on the focal plane array for very compact MCT-based micro cameras

Manuel Fendler, Gilles Lasfargues, S. Bernabé, Guillaume Druart, Florence De la Barriere, Sylvain Rommeluere, Nicolas Guérineau, Nicolas Lhermet, Hervé Ribot

Proceedings Volume 7660, 766022 (2010) https://doi.org/10.1117/12.852275

KEYWORDS: Integrated optics, Cameras, Staring arrays, Sensors, Detector arrays, Infrared radiation, Spectroscopy, Cryogenics, Infrared cameras, Infrared imaging

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Proceedings Article | 27 September 2008 Paper

MICROCARD: a micro-camera based on a circular diﬀraction grating for MWIR and LWIR imagery

Guillaume Druart, Nicolas Guérineau, Michel Tauvy, Sylvain Rommeluère, Jérôme Primot, Joël Deschamps, Manuel Fendler, Jean-Charles Cigna, Jean Taboury

Proceedings Volume 7100, 71001N (2008) https://doi.org/10.1117/12.797446

KEYWORDS: Axicons, Zoom lenses, Long wavelength infrared, Mid-IR, Sensors, Imaging systems, Visible radiation, Diffraction gratings, Modulation transfer functions, Optical components

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Proceedings Article | 14 May 2008 Paper

MULTICAM: a miniature cryogenic camera for infrared detection

Guillaume Druart, Nicolas Guérineau, Riad Haïdar, Eric Lambert, Michel Tauvy, Sophie Thétas, Sylvain Rommeluère, Jérôme Primot, Joël Deschamps

Proceedings Volume 6992, 69920G (2008) https://doi.org/10.1117/12.779272

KEYWORDS: Sensors, Microlens array, Eye, Infrared imaging, Infrared radiation, Point spread functions, Cryogenics, Cameras, Optical design, Infrared detectors

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Proceedings Article | 26 September 2007 Paper

Image formation by use of continuously self-imaging gratings and diffractive axicons

Guillaume Druart, Nicolas Guérineau, Riad Haïdar, Jérôme Primot, Alain Kattnig, Jean Taboury

Proceedings Volume 6712, 671208 (2007) https://doi.org/10.1117/12.730629

KEYWORDS: Axicons, Point spread functions, Imaging systems, Image restoration, Image processing, Image quality, Sensors, Tolerancing, Image acquisition, Infrared radiation

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Proceedings Article | 24 October 2005 Open Access

Web-controlled optical amplifier for educational purpose

Frederic Capmas, Matthieu Boffety, Laurent Calixte, Guillaume Druart, Thierry Avignon, Nicolas Dubreuil, Marc Bondiou

Proceedings Volume 9664, 96641K (2005) https://doi.org/10.1117/12.2207770

KEYWORDS: Optical amplifiers, Semiconductor lasers, Switches, Control systems, Beam controllers, Fiber optic communications, Fiber optics, Multiplexers, Photonics, LabVIEW

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