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1. Study of the capability of detection of structural abnormality in rotating machines with SSA

Author

Manabu TSUNOKAI, Jeremy KNOPP, Kazuyuki DEMACHI, Stéphane PERRIN, and Ryo KAYATA

Subjects
change detection, structural abnormalities, singular spectral analysis (ssa), signal processing, condition monitoring, rotating machine, Mechanical engineering and machinery, TJ1-1570
Abstract

The detection of the presence of a structural abnormality in rotating machines with parts without gap, such as rigid couplings, by using the conventional method of vibration RMS, is difficult. This work investigates the application of Singular Spectral Analysis (SSA) to change detection in rotating machines. The performance of this technique is quantitatively evaluated in the scenario of misalignment in a turbopump assembly with rigid coupling. It is shown that a statistically significant change appears when using the Change Score calculated using the SSA method. Comparison with special indicators of a structural abnormality is also performed. Since the SSA detects changes in the shape of the signal, it is much more sensitive to changes related to abnormality than conventional methods or the use of special indicators.

Published
2016
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14. Microscopie interférométrique

Author

Rémy CLAVEAU, Sébastien MARBACH, Stéphane PERRIN, Amir NAHAS, Manuel FLURY, Paul MONTGOMERY, Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic
Abstract

La microscopie interférométrique est aujourd’hui une technique mature de métrologie optique sans contact permettant d’accéder à diverses informations en surface ou volume. Ce chapitre décrit les principes, la théorie sous-jacente, les algorithmes, l’instrumentation et les performances. Des extensions possibles comme la tomographie, la spectroscopie locale et les mesures à travers les microsphères, sont également discutées.

Published
2023

20. Hydrogen trapping by irradiation-induced defects in 316 Lstainless steel: A combined experimental and modeling study

Author

Anne-Cécile Bach, Frantz Martin, Cécilie Duhamel, Stéphane Perrin, François Jomard, Jérôme Crepin, Centre des Matériaux (CDM), Mines Paris - PSL (École nationale supérieure des mines de Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude de la Corrosion Aqueuse (LECA), Service de la Corrosion et du Comportement des Matériaux dans leur Environnement (SCCME), Département de Physico-Chimie (DPC), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département de Physico-Chimie (DPC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d’étude des Ciments et Bitumes pour le Conditionnement (LCBC), Département de recherche sur les Procédés et Matériaux pour les Environnements complexes (DPME), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Groupe d'Etude de la Matière Condensée (GEMAC), and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Irradiation defects, Hydrogen trapping, Nuclear Energy and Engineering, Austenitic stainless steel, Modeling, General Materials Science, Secondary ions mass spectrometry, [CHIM.MATE]Chemical Sciences/Material chemistry
Abstract

International audience; The irradiation-induced defects in stainless steel internal components of pressurized water reactors com- bined with hydrogen uptake during the oxidation process could be a key parameter in the mechanism for Irradiation-Assisted Stress Corrosion Cracking (IASCC). A heat-treated 316 L SS containing a low amount of defects was Fe 3 + ions-implanted; irradiation-induced defects types and depth distributions were charac- terized by Transmission electron microscopy (TEM). Deuterium was then inserted in the specimens either by cathodic charging or by sample exposure to deuterated primary water. Secondary Ions Mass Spectrom- etry –SIMS –permitted to access the deuterium distribution at the implanted stainless steel surface. A finite difference numerical solver accounting for hydrogen diffusion/trapping coupling was used to simu- late the hydrogen transport in the implanted material, taken into consideration the specific heterogeneous character of the irradiation-induced defects distribution in matter. Taking as input data the experimen- tal defects distribution associated with Frank loops or voids, the main trapping sites for hydrogen were assigned to voids, not Frank loops. Such numerical approach was able to deal accurately with the prob- lem of hydrogen transport in a heterogeneous material as well as to differentiate two potential trap sites contributions to the experimental deuterium distribution. In addition, according to results obtained after primary water exposure, trapping at voids was still effective at 320 °C, signature of a high binding energy of hydrogen in voids.

Published
2022
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22. A low-cost machine learning process for gait measurement using biomechanical sensors

Author

Luc Maréchal, Christine Barthod, Eric Benoit, Farah Abdel Khalek, Stéphane Perrin, Marc Hartley, Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Laboratoire d'Informatique, Systèmes, Traitement de l'Information et de la Connaissance (LISTIC), and Laboratoire SYstèmes et Matériaux pour la MEcatronique (SYMME)

Subjects
Computer science, Real-time computing, 02 engineering and technology, Home monitoring, Electric apparatus and materials. Electric circuits. Electric networks, 01 natural sciences, Industrial and Manufacturing Engineering, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], Gait (human), [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, Machine learning, 0202 electrical engineering, electronic engineering, information engineering, Depth camera, Electrical and Electronic Engineering, [PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph], TK452-454.4, ComputingMilieux_MISCELLANEOUS, Health professionals, business.industry, Deep learning, 010401 analytical chemistry, Gait measurement, Process (computing), Object (computer science), 0104 chemical sciences, Electronic, Optical and Magnetic Materials, Mechanics of Materials, PIR, 020201 artificial intelligence & image processing, Artificial intelligence, business
Abstract

Continuous gait measurement can bring relevant indicators for healthcare professionals. Several techniques were developed for this cause. However, the beneficiaries, especially senior adults, find it hard to accept a monitoring device as it takes away their privacy. In this paper, we present a non-intrusive, low-cost and easy to implement model for gait measurement at home. It consists of implementing 4 passive infrared (PIR) sensors facing each other by pair. Our approach is based on a Deep Learning (DL) model that takes as input the signals generated by the PIR sensors, as they are representative of the distance and the speed of the moving object. A temporary Depth camera is used for training the model on the gait parameters. To evaluate our approach, we conducted multiple series of experiments on real sensor data. The results are promising and show that our approach is efficient for continuous gait measurement.

Published
2021
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23. Direct imaging of a photonic jet at shaped fiber tips

Author

Stéphane Perrin, Nacer-Eddine Demagh, Assia Guessoum, Djamila Bouaziz, Grégoire Chabrol, Sylvain Lecler, Tony Hajj, Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Microlens, Diffraction, Multi-mode optical fiber, Optical fiber, Materials science, business.industry, Physics::Optics, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, law.invention, 010309 optics, Core (optical fiber), Optics, law, 0103 physical sciences, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Fiber, Photonics, 0210 nano-technology, business, Lithography
Abstract

This Letter presents, to our knowledge, the first direct measurement of the three-dimensional distribution of photonic jets (PJs) generated by shaped-tip multimode optical fibers. A PJ at the distal end of optical fibers makes it easier to scan a sample, for lithography or optical analysis, for example, with a spot smaller than the diffraction limit. The backscattered light can also be easily collected. In this study, the volume of the PJ has been reconstructed using a stack of image planes and compared to numerical simulations. For the first time, the power distribution of the non-fundamental mode around the PJ has been observed, giving a better understanding of PJ-based laser etching using multimode optical fibers. An original 50/125 fiber with a microlens fitting just on its core has made it possible to strongly reduce the power spread compared to the thermoformed 100/140 fibers used in our previous works.

Published
2021
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25. A Potential Application of Photonic Jet in Observing Micro-Metric Materials

Author

Sylvain Lecler, Stéphane Perrin, Muhamad Octamar Wahidullah, Annisa Aprilia, Dziban Naufal, Dewi Syarah Sofiati, Andri Abdurrochman, and Lusi Safriani

Subjects
Jet (fluid), Materials science, genetic structures, business.industry, Mechanical Engineering, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, 010309 optics, Optics, Mechanics of Materials, 0103 physical sciences, Metric (mathematics), General Materials Science, Photonics, 0210 nano-technology, business
Abstract

Photonic jet microscopy is a technical field of microscopy applying photonic jet phenomenon to increase the resolution of objects or area of objects being observed. Mostly it is used in optical microscopy as the demand of visual observations are increased, especially for the micro-metric biological objects. In addition to our previous works inoptical assessment of observing a micrometric object under a microsphere using an optical microscope, now we made the electromagnetic assessment. It concludes if smaller microsphere magnifies greater than bigger microsphere. Therefore, applying photonic jet microscopy for visual observation is getting closer.

Published
2019
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26. Illumination conditions in microsphere-assisted microscopy

Author

Stéphane Perrin, Audrey Leong-Hoi, Paul Montgomery, Sylvain Lecler, and Hongyu Li

Subjects
0303 health sciences, Histology, Materials science, business.industry, Super-resolution microscopy, 02 engineering and technology, Lateral resolution, 021001 nanoscience & nanotechnology, Pathology and Forensic Medicine, Microsphere, law.invention, 03 medical and health sciences, Light source, Optics, law, Optical transfer function, Spectral width, Microscopy, 0210 nano-technology, business, Diaphragm (optics), 030304 developmental biology
Abstract

White-light microsphere-assisted microscopy is a full-field and label-free imaging promising technique making it possible to achieve a subdiffraction lateral resolution. However, performance of this technique depends not only on the geometrical parameters but also on the illumination conditions of the optical system. In the present work, experimental measurements and computer simulations have been performed in air in order to determine the influence of the two diaphragm apertures of the Kohler arrangement and the spectral width of the light source on both the depth-of-focus of the microsphere and the optimization of the imaging contrast. Furthermore, the super-resolution phenomenon is demonstrated and the cumulated optical aberrations are shown through the measurement of the optical transfer function for the different arrangements of the illumination part.

Published
2019
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27. Premières lueurs philosophiques

Author

Claude Stéphane Perrin and Claude Stéphane Perrin

Abstract

C'est par-delà une méthode phénoménologique qui fait prévaloir la visibilité aux dépens de l'invisible que surgissent quelques lueurs philosophiques nées d'une intention consciente de voir (ou d'entendre) sans se fixer comme projet de maîtriser tout ce qui apparaît, mais en désirant trouver de multiples cohérences dans ce qui est dispersé. En effet chacune de ces lueurs est une promesse de nouvelles aurores qui ne demeurent jamais séparées de l'infinité obscure de la Nature, en empêchant de réduire l'invisible au visible, la sérénité silencieuse de la pensée aux seuls bruissements terrestres…

Published
2024

30. Whispering gallery mode in super-resolution microsphere-assisted microscopy (Conference Presentation)

Author

Sylvain Lecler, Nacer-Eddine Demagh, Stéphane Perrin, Paul Montgomery, Rayenne Boudoukha, Assia Guessoum, ICube, CNRS, University of Strasbourg, France, Applied Optics Laboratory, Institute of Optics and Precision Mechanics (IOPM), SPIE, Sylvain Lecler, Vasily N. Astratov, Igor V. Minin, Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Diffraction, Point spread function, Materials science, Microscope, business.industry, law.invention, Numerical aperture, Lens (optics), [SPI]Engineering Sciences [physics], Optics, Optical microscope, law, Optical transfer function, Microscopy, business
Abstract

Conference Presentation; International audience; In classical microscopy, the diffraction of the light limits the resolving power of the system. Observation of nanoscale elements through an optical microscope appears often to be restricted. From the cut-off frequency of the optical transfer function, the lateral resolution of an optical microscope can thus be quantified as 0.5 Lambda/NA, where Lambda and NA are the wavelength of the light source and the numerical aperture of the microscope objective, respectively. A white-light microscope thus allows the visualisation of objects having a minimum size that is just greater than half of the wavelength of the illumination in air. Recently, several far-field methods have been developed in order to overcome this limitation. Microsphere-assisted microscopy is a modern technique which allows the diffraction limit to be broken. In 2011, Wang et al. developed two-dimensional super-resolution imaging through glass microspheres. They showed that microsphere-assisted microscopy distinguishes itself from others by being able to perform label-free and full-field acquisitions. In addition, with only slight modifications of classical white-light microscopy, microsphere-assisted microscopy makes it possible to reach a lateral resolution of a few hundred nanometres (~λ/7 in immersion). Placing a microsphere on a sample, directly or at a few hundreds of nanometres distance allows the generation of a super-resolved virtual image of the object which is then collected by a microscope objective. Currently several studies have been aimed at providing a better understanding of the super-resolution phenomenon in microsphere imaging. Now we know that the performance in microsphere-assisted microscopy depends on the optical and geometrical parameters. According to many studies on the PJ prediction, the imaging process in microsphere-assisted microscopy can be addressed by considering the sphere as a photonic jet lens. However, recently, we demonstrated that the photonic jet (PJ) generation by a microsphere, and considered here as the point spread function, is not small enough to justify this resolution improvement in the imaging process. Although the size of the focus spot overcomes the diffraction limit, the full width at half maximum of the PJ waist is around a third of the wavelength, which is lower than the super-resolving power which is around λ/7 in immersion. However, the PJ phenomenon can explain the imaging through the microsphere, the nature of the image, the position of the image plane and the lateral magnification dependence provided by the microsphere. Moreover, we have investigated the contrast in the virtual image according to the relative phase difference between close point sources. When the point sources are initially in-phase, the two virtual images cannot be distinguished. However, when the point sources are initially out-of-phase, the two virtual images can be clearly distinguished. Our work considers a third hypothesis by contributing to the investigation of the role of whispering gallery modes (a radially evanescent wave) in the microsphere assisted microscopy mechanism through numerical simulations using a finite element method.

Published
2020
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31. Super-resolution imaging through microspheres (Conference Presentation)

Author

Paul Montgomery, Sylvain Lecler, and Stéphane Perrin

Subjects
Materials science, Microscope, Super-resolution microscopy, business.industry, 3D reconstruction, Interference microscopy, law.invention, Interferometry, Optics, Optical microscope, law, Microscopy, Photonics, business
Abstract

Microsphere-assisted microscopy is a new two-dimensional super-resolution imaging technique, which allows the diffraction limit to be overcome by introducing a transparent microsphere in a classical optical microscope. This super-resolution technique makes it possible to reach a lateral resolution of up to one hundred nanometres (~λ/6) in air. Furthermore, microsphere-assisted microscopy distinguishes itself from others by being able to perform label-free and full-field acquisitions and requires only slight modifications of a classical white light microscope. This presentation gives an overview of the results of simulations and experiments we have performed over the last four years. The influence of the photonic jet on the image nature and the unconventional behaviour of the magnification factor is presented. In addition, the phenomenon behind the super resolution, which is still not fully understood, is discussed. Moreover, a new microsphere-based imaging device which enables the metrology of transparent nano-structures is shown. Finally, interferometry through microspheres is demonstrated for the 3D reconstruction of nano-elements. In order to provide a better understanding of the phase behaviour through microspheres, a numerical model of microsphere-assisted interference microscopy is being implemented.

Published
2020
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32. Label-free super-resolution microsphere-assisted microscopy of biological samples (Conference Presentation)

Author

Stéphane Perrin, Paul Montgomery, Nadia Messaddeq, Sylvain Lecler, Nicolas Lemercier, Giorgio Quaranta, and Jean-Luc Vonesch

Subjects
Materials science, business.industry, 010401 analytical chemistry, Dielectric, 01 natural sciences, Fluorescence, Superresolution, Dark field microscopy, 0104 chemical sciences, law.invention, Microsphere, 010309 optics, Lens (optics), Optics, law, 0103 physical sciences, Microscopy, business, Label free
Abstract

Most of the recent super-resolution imaging techniques developed for biology are based on fluorescence properties which generally require toxic dyes. We show how super-resolution can be obtained without dyes by simply adding 20-micrometer-diameter dielectric spheres on the sample under a microscope objective. The microsphere behaves as a non-classical lens, collecting evanescent waves in a full-field imaging process. Resolutions of up to between /5 and /7 can be reached in air and in immersion, respectively. For translucent biological samples, a dark-field optical setup is proposed. Performance of the label-free super-resolution technique is demonstrated through the imaging of fixed nerve sections from a mouse embryo brain.

Published
2020
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33. From 2D to 3D super-resolution imaging through glass microspheres -INVITED

Author

Paul Montgomery, Sylvain Lecler, Stéphane Perrin, Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Diffraction, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, business.industry, Physics, QC1-999, Resolution (electron density), 3D reconstruction, Magnification, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, 010309 optics, Glass microsphere, Interferometry, Optics, 0103 physical sciences, Microscopy, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Photonics, 0210 nano-technology, business, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, ComputingMilieux_MISCELLANEOUS
Abstract

Microsphere-assisted microscopy is a new imaging technique which allows the diffraction limit to be overcome using transparent microspheres. It makes it possible to reach a resolution of up to 100 nm in air while being label-free and full-field. An overview of the imaging technique is presented showing the influence of the photonic jet on the image nature and the unconventional behaviour of the magnification factor. Moreover, interferometry through microspheres is demonstrated for the 3D reconstruction of nanoelements.

Published
2020
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34. Compensated Microsphere-Assisted Interference Microscopy

Author

Stéphane Perrin, Yidenekachew J. Donie, Paul Montgomery, Sylvain Lecler, Guillaume Gomard, Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), and Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Diffraction, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, business.industry, General Physics and Astronomy, 02 engineering and technology, Grating, 021001 nanoscience & nanotechnology, 01 natural sciences, Interference microscopy, Glass microsphere, Optics, Interference (communication), Feature (computer vision), 0103 physical sciences, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, 0210 nano-technology, business, Image resolution, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, Nanopillar
Abstract

International audience; We propose an experimental method in microsphere-assisted interference microscopy that makes it possible to reconstruct surface topographies as much with high quantitative depth accuracy as when the transversal feature sizes are smaller than the classical diffraction limit. The full-field super-resolution interference microscope consists not only of one glass microsphere in the object arm but also of a second similar microsphere in the reference arm. By compensating the sphere aberrations in the two interference arms, the spatial resolution appears to be considerably increased. The increase in the three-dimensional spatial resolution allows for the topography reconstruction of 300-nm-width grating lines and 200-nm-diameter transparent nanopillars.

Published
2020
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36. Bien vivre et philosopher

Author

Claude Stéphane Perrin and Claude Stéphane Perrin

Subjects
Contentment--Philosophy, Well-being--Philosophy, Life, Happiness--Philosophy
Abstract

Même si tout le réel n'est pas encore rationnel, la relation entre vivre et philosopher révèle que les plaisirs requis sont qualitativement divers et nombreux : banals, jouissifs, transgressifs, ludiques, joyeux... En fait, les plaisirs peuvent aussi être euphémisés par la satisfaction d'un bien-être commun, protecteur et ordinaire, nécessaire mais pas suffisant. Les plaisirs peuvent aussi être idéalisés dans un bonheur subjectif incertain, voire dans la joie suprême de la béatitude qui naît, chez Spinoza, d'une participation à l'éternelle nécessité de la Nature, en de brefs contacts sensibles et intellectuels avec elle. Enfin, la volonté de mieux vivre implique de commencer par philosopher en créant de sereines évidences provisoires, voire de joyeuses certitudes, et, surtout, l'intense félicité qui accompagne le triomphe de la nécessité sur l'aléatoire.

Published
2022

37. Wise Objects for IoT (WIoT): Software Framework and Experimentation

Author

Flavien Vernier, Eric Benoit, Stéphane Perrin, Ilham Alloui, Laboratoire d'Informatique, Systèmes, Traitement de l'Information et de la Connaissance (LISTIC), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), and Vernier, Flavien

Subjects
[INFO.INFO-AI] Computer Science [cs]/Artificial Intelligence [cs.AI], Information management, Object-oriented programming, Computer science, business.industry, [INFO.INFO-SE] Computer Science [cs]/Software Engineering [cs.SE], Software bus, 02 engineering and technology, [INFO.INFO-SE]Computer Science [cs]/Software Engineering [cs.SE], computer.software_genre, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], Software framework, Software, Home automation, Human–computer interaction, 020204 information systems, 0202 electrical engineering, electronic engineering, information engineering, 020201 artificial intelligence & image processing, Software architecture, business, Communications protocol, computer, ComputingMilieux_MISCELLANEOUS
Abstract

Despite their expansion, Internet of Things (IoT) technologies remain young and require software technologies to ensure information management in order to deliver sophisticated services to their users. Users of IOT technologies particularly need systems that adapt to their use and not the reverse. To meet those requirements, we enriched our object oriented framework WOF (Wise Object Framework) with a communication structure to interconnect WOs (Wise Objects) and IoT. Things from IoT are then able to learn, monitor and analyze data in order to be able to adapt their behavior. In this paper, we recall the underlying concepts of our framework and then focus on the interconnection between WOs and IoT. This is enabled by a software bus-based architecture and IoT related communication protocols. We designed a dedicated communication protocol for IoT objects. We show how IoT objects can benefit from learning, monitoring and analysis mechanisms provided by WOF to identify usual behavior of a system and to detect unusual behavior. We illustrate our approach through two case studies in home automation. The first shows how a wise smart presence sensor learns on a classroom occupation. The second shows how a wise system helps us to see correlation among several WOs.

Published
2019

38. Microsphere-aided imaging of subdiffraction-limited translucent features (Conference Presentation)

Author

Sylvain Lecler, Paul Montgomery, Stéphane Perrin, Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), and Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Microscope, Materials science, Superlens, genetic structures, business.industry, law.invention, Numerical aperture, [SPI]Engineering Sciences [physics], Interferometry, Optics, Optical microscope, law, Optical transfer function, Microscopy, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Photonics, business, ComputingMilieux_MISCELLANEOUS
Abstract

In optical microscopy, the diffraction of the light as well as the coherence limits the resolving power of the system. Observation of nanoscale elements through an optical microscope appears often to be restricted. Assuming an incoherent light source and a circular pupil, the lateral resolution of an optical microscope can thus be quantified by the cut-off frequency of the optical transfer function, given by 0.5 λ/NA, where λ and NA are the wavelength of the light source and the numerical aperture of the microscope objective, respectively. A white-light microscope thus allows the visualisation of objects having a minimum size that is just greater than half of the wavelength of the illumination in air, in ideal cases, such as features of MOEMS-based components and bacteria. In reality, imperfections or misalignment of optical components makes the resolution limit worse. Recently, several far-field methods have been developed in order to overcome this limitation, such as stimulated-emission-depletion microscopy and the negative-refractive-index superlens. In 2004, a new potential far-field microscopy technique based on the scanning photonic jet beam was proposed, leading to a lateral resolution of ~λ/3. In 2011, Wang et al. experimentally introduced the phenomenon of two-dimensional super-resolution imaging through a glass microsphere. They showed that microsphere-assisted microscopy distinguishes itself from others by being able to perform label-free and full-field acquisitions. In addition, with only slight modifications of classical white-light microscopy, microsphere-assisted microscopy makes it possible to reach a lateral resolution of a few hundred nanometres (~λ/7) which is adequate, for example, for the visualization of adenoviruses using the fluorescence effect. Placing a microsphere on (or above) a sample allows the generation of a super-resolved virtual image of the object which is then collected by a microscope objective. Although the super-resolution phenomenon is still not well understood, we now know that the performance of microsphere-aided microscopy depends on the optical and geometrical parameters. Recently, we successfully demonstrated the label-free combination of microsphere-assisted microscopy with dark-field illumination in order to image translucent samples. Random glass nanofeatures, as well as brain cell morphology, have been observed. Future work is now in progress towards the extension of 3D object inspection using interferometry.

Published
2019
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39. Microsphere-assisted imaging of sub-diffraction-limited features

Author

Sylvain Lecler, Manuel Flury, Stéphane Perrin, Sébastien Marbach, Paul Montgomery, Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), SPIE, Lehmann P., Osten W., Gonçalves A.A., Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), and Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Microscope, business.industry, Resolution (electron density), 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Interference microscopy, law.invention, 010309 optics, Glass microsphere, Interferometry, [SPI]Engineering Sciences [physics], Optics, Optical microscope, law, 0103 physical sciences, Microscopy, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, 0210 nano-technology, business, Nanoscopic scale, ComputingMilieux_MISCELLANEOUS
Abstract

Observation of nanoscale elements through an optical microscope is often restricted by the resolving power of the optical system. Indeed, a white-light microscope allows the visualisation of objects having a size that is only just greater than half of the wavelength of the illumination used, in ideal cases, such as features of MOEMS- based components. In reality, imperfections or misalignment of the optical components makes this resolution limit worse. In 2011, Wang et al. introduced experimentally the phenomenon of two-dimensional super-resolution imaging through a glass microsphere. They showed that microsphere-assisted microscopy distinguishes itself from others by being able to perform label-free and full-field acquisitions. In addition, with only slight modifications of a classical white-light microscope, microsphere-assisted microscopy makes it possible to reach a lateral resolution of a few hundred nanometers. Recently, we successfully demonstrated the label-free combination of microsphere- assisted microscopy with interferometry. This work aims to compare performance of 2D imaging (microsphere- assisted microscopy) with 3D imaging (microsphere-assisted interference microscopy).

Published
2019
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40. Unconventional magnification behaviour in microsphere-assisted microscopy

Author

Hongyu Li, Paul Montgomery, Sylvain Lecler, Stéphane Perrin, Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Wuhan University [China], Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut d'Electronique du Solide et des Systèmes (InESS), Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), and CCSD, Accord Elsevier

Subjects
Image formation, Materials science, [SPI.OPTI] Engineering Sciences [physics]/Optics / Photonic, [SPI] Engineering Sciences [physics], Magnification, 02 engineering and technology, 01 natural sciences, law.invention, Microsphere, 010309 optics, [SPI]Engineering Sciences [physics], Optics, Optical microscope, law, 0103 physical sciences, Spectral width, Microscopy, Electrical and Electronic Engineering, ComputingMilieux_MISCELLANEOUS, business.industry, Plane (geometry), 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, 0210 nano-technology, business, Focus (optics)
Abstract

Microsphere-assisted microscopy is an original sub-diffraction-limit imaging technique allowing to reach a few hundred nanometres of lateral resolution in air only by placing a microbead in a classical optical microscope. This work aims to highlight the magnification process in microsphere-assisted microscopy which behaves differently from the case in optical microscopy. As a matter of fact, the lateral magnification of an optical microscope does not change according to focus plane positions. Experiments on the super-resolution imaging technique, performed in air through soda-lime-glass microspheres and attested by simulations, demonstrate a significant increase in the magnification factor along the microsphere imaging depth, i.e. at different object-focal-plane position of the objective. Moreover, it is shown that the magnification range, as well as its slope, depend on the size of the microsphere. Additionally, the influence of the spectral width of the illumination light source on the magnification range is highlighted.

Published
2019
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41. High Resolution Surface Metrology Using Microsphere‐Assisted Interference Microscopy

Author

Audrey Leong-Hoi, Stéphane Perrin, Sylvain Lecler, Paul Montgomery, Institut d'Electronique du Solide et des Systèmes (InESS), Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), and Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, business.industry, High resolution, 02 engineering and technology, Surfaces and Interfaces, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Linnik interferometer, 01 natural sciences, Superresolution, Interference microscopy, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Microsphere, 010309 optics, [SPI]Engineering Sciences [physics], Optics, Surface metrology, 0103 physical sciences, Materials Chemistry, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Electrical and Electronic Engineering, 0210 nano-technology, business, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019
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42. Microsphere-Assisted Interference Microscopy

Author

Paul Montgomery, Sylvain Lecler, and Stéphane Perrin

Subjects
Diffraction, Materials science, Microscope, business.industry, Resolution (electron density), Interference microscopy, law.invention, Interferometry, Optics, Interference (communication), Optical microscope, law, Microscopy, business
Abstract

Microsphere-assisted microscopy is a new two-dimensional super- resolution imaging technique, which allows the diffraction limit to be overcome by introducing a transparent microsphere in a classical optical microscope. This super-resolution technique makes it possible to reach a lateral resolution of up to one hundred nanometres. Furthermore, microsphere-assisted microscopy distinguishes itself from others by being able to perform label-free and full-field acquisitions and requires only slight modifications of a classical white light microscope. Extended to three-dimensional surface measurement through interference microscopy which has the advantage of providing a high-axial sensitivity, super-resolution topography or the volume distribution of objects can thus be reconstructed depending on the interference method employed. This chapter first presents a brief history of optical microscopy and recent advances in optical nanoscopy. Then, the super-resolution phenomenon through microspheres is introduced and its performance is described. Finally, the combination of optical interferometry with nanoscopy based on microspheres, giving microsphere-assisted interference microscopy, is exposed.

Published
2019
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44. Concepts de l'amour

Author

Claude Stéphane Perrin and Claude Stéphane Perrin

Abstract

L'amour naît ordinairement de l'accueil et de la reconnaissance chaleureuse d'une inaliénable altérité. Cet accueil singulier permet de fonder une ouverture fructueuse sur le monde pour le connaître ou bien pour en aimer les plus mystérieux lointains. Sachant que les multiples expériences de l'amour ne peuvent pas être rapportées à un seul concept, elles ont été problématisées, hors de toute finalité éclectique ou théologique, d'une manière perspectiviste et naturaliste, en fonction de trois points de vue. Le premier, empirique, interprète les diverses épreuves de l'amour. À l'opposé, le deuxième point de vue considère l'amour créatif des êtres humains soit dans leurs rêves du grand amour, soit dans leurs douces relations accueillantes, partagées ou sublimées. Le troisième point de vue, rationaliste, cherche comment l'amour peut et doit être vertueux.

Published
2020

46. Microsphere-assisted microscopy: Contribution to the understanding of label-free super-resolution (Conference Presentation)

Author

Audrey Leong-Hoi, Sylvain Lecler, Stéphane Perrin, and Paul Montgomery

Subjects
Materials science, business.industry, Resolution (electron density), Physics::Optics, law.invention, Interferometry, Optics, Optical microscope, Virtual image, law, Microscopy, Photonics, business, Biological imaging, Coherence (physics)
Abstract

The demands of biological imaging microscopy continue to progress, requiring high spatial resolution, real time acquisition, easy-to-use devices and with preference being label-free to avoid cell damage. While recent advances have allowed significant progress in resolution, several limitations remain such as the use of labelling, the complexity of the imaging technique or low image rate acquisition. Recently, a new optical technique, known as microsphere-assisted microscopy, seems to provide several advantages. The principle is based on the collection of a virtual image of the sample through a dielectric microsphere by a classical optical microscope. The dielectric microsphere with a diameter of tens of micrometres, can be deposited on the sample in air or in immersion. A resolution of up to 7 times smaller than the wavelength has been experimentally demonstrated in full-field imaging, i.e. without the need for point scanning nor labelling, with a classical optical microscope. Our team has also demonstrated that beyond a classical image the phase can also be measured using this technique with an interferometric configuration, so providing depth information. The presentation will be focused on the physical understanding of the phenomenon through simulations. The role of the photonic jet, light coherence and near-field effects have been numerically investigated. We will show how the photonic jet can be used to explain the imaging process but does not explain the super-resolution phenomenon. The role of coherence in the resolution limit criterion will also be illustrated, as well as a discussion on the contribution of the evanescent wave.

Published
2018
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47. Multi-sensor information fusion: Combination of fuzzy systems and evidence theory approaches in color recognition for the NAO humanoid robot

Author

Stéphane Perrin, Didier Coquin, Reda Boukezzoula, Thanh Long Nguyen, Laboratoire d'Informatique, Systèmes, Traitement de l'Information et de la Connaissance (LISTIC), and Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])

Subjects
Computer science, General Mathematics, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Context (language use), 02 engineering and technology, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], 0202 electrical engineering, electronic engineering, information engineering, [INFO.INFO-RB]Computer Science [cs]/Robotics [cs.RO], Computer vision, [INFO]Computer Science [cs], ComputingMilieux_MISCELLANEOUS, business.industry, 020208 electrical & electronic engineering, Process (computing), Cognitive neuroscience of visual object recognition, Fuzzy control system, Object (computer science), Computer Science Applications, Control and Systems Engineering, [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV], Robot, 020201 artificial intelligence & image processing, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, Artificial intelligence, business, Software, Humanoid robot
Abstract

This paper investigates the conception of a real-time decision system for colored object recognition using cheap and uncalibrated cameras. The proposed decision system, embedded in a humanoid robot evolving in an uncontrolled environment, is based on the collaboration between a fuzzy system and a data multi-sensory fusion methodology. Based on the ability of fuzzy systems to exhibit any type of behavior mapping, the color recognition problem using a single camera is viewed as a Takagi–Sugeno fuzzy system with Constant Conclusions (TSCC). Indeed, the behavior between the HSV triplet extracted from the image (captured by the robot’s camera) and the recognized colored object is represented by a TSCC. In this context, it is well known that a single sensory system is only capable of supplying partial information and is consequently limited in its ability to interpret complex situations, especially in imprecise and uncertain environments where ambiguities and conflicts among colors are often present. In other words, a decision system based on a single camera cannot reflect real situations and can affect the reliability and the quality of the color recognition. In order to overcome this problem, the integration of more than one camera in the recognition process is proposed. The data provided from these cameras is always affected by some level of impreciseness as well as uncertainty in the measurements. So, the proposed multi-camera fusion strategy based on evidence theory should be able to express such imperfections effectively, to reduce their effects, to exploit the data redundancy, to integrate the reliability of sources and to improve the color recognition accuracy. The feasibility and the validity of the proposed methodology are experimentally validated according to an embedded real-time implementation on the NAO humanoid robot.

Published
2018
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48. Decision method choice in a human posture recognition context

Author

Didier Coquin, Eric Benoit, Stéphane Perrin, Laboratoire d'Informatique, Systèmes, Traitement de l'Information et de la Connaissance (LISTIC), and Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])

Subjects
fuzzy, Computer science, business.industry, 020208 electrical & electronic engineering, 010401 analytical chemistry, Aggregate (data warehouse), Context (language use), 02 engineering and technology, Sensor fusion, Machine learning, computer.software_genre, decision, 01 natural sciences, Fuzzy logic, Defuzzification, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, 0104 chemical sciences, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI], posture recognition, 0202 electrical engineering, electronic engineering, information engineering, Artificial intelligence, business, computer, Decision model
Abstract

International audience; Human posture recognition provides a dynamic field that has produced many methods. Using fuzzy subsets based data fusion methods to aggregate the results given by different types of recognition processes is a convenient way to improve recognition methods. Nevertheless, choosing a defuzzification method to imple-ment the decision is a crucial point of this approach. The goal of this paper is to present an approach where the choice of the defuzzification method is driven by the constraints of the final data user, which are expressed as limitations on indica-tors like confidence or accuracy. A practical experimentation illustrating this ap-proach is presented: from a depth camera sensor, human posture is interpreted and the defuzzification method is selected in accordance with the constraints of the final information consumer. The paper illustrates the interest of the approach in a context of postures based human robot communication.

Published
2018
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49. Cézanne : Le désir de vérité

Author

Claude Stéphane Perrin and Claude Stéphane Perrin

Abstract

L'art de Cézanne exprime un vigoureux et exaltant désir de vérité qui le rattache à la nature. Il dépasse pour cela les données du monde en rapportant les forces obscures de la sensibilité aux lumières d'une logique aérienne et colorée. Cette peinture a ainsi transfiguré les naissantes et confuses vibrations des choses en fonction des sensations colorantes et des structures du monde selon trois perspectives : d'abord d'une manière symbolique ; ensuite esthétique et enfin métaphysique, en des vérités analogiques qui accompagnent les forces du désir vers quelques sublimations salutaires.

Published
2018

50. Microsphere-assisted phase-shifting profilometry

Author

Ivan Kassamakov, Edward Hæggström, Sylvain Lecler, Pierre Pfeiffer, Audrey Leong-Hoi, Stéphane Perrin, Anton Nolvi, Paul Montgomery, Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), and Department of Physics

Subjects
Materials science, Magnification, Near and far field, 02 engineering and technology, 114 Physical sciences, 01 natural sciences, 010309 optics, Optics, Interference (communication), 0103 physical sciences, COHERENCE, Surface roughness, Electrical and Electronic Engineering, Engineering (miscellaneous), business.industry, Fourier optics, Resolution (electron density), FLUORESCENCE MICROSCOPY, STIMULATED-EMISSION, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, Interference microscopy, DIELECTRIC MICROSPHERE, RESOLUTION, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Profilometer, 0210 nano-technology, business
Abstract

In the present work, we have investigated the combination of a superresolution microsphere-assisted 2D imaging technique with low-coherence phase-shifting interference microscopy. The imaging performance of this technique is studied by numerical simulation in terms of the magnification and the lateral resolution as a function of the geometrical and optical parameters. The results of simulations are compared with the experimental measurements of reference gratings using a Linnik interference configuration. Additional measurements are also shown on nanostructures. An improvement by a factor of 4.7 in the lateral resolution is demonstrated in air, thus giving a more isotropic nanometric resolution for full-field surface profilometry in the far field. (C) 2017 Optical Society of America

Published
2017
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