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Artykuły w czasopismach na temat "Filtres multicouches"
Tahina Lalaina, Randrianantoandro, i Herizo Ramanantsoa. "Etude De Mécanisme d’Adsorption Du Colorant d’Indigo Carmin (IC) Sur Du Charbon Actif A Base De Coques De Noix De Coco (CACC)". International Journal of Progressive Sciences and Technologies 39, nr 1 (20.06.2023): 127. http://dx.doi.org/10.52155/ijpsat.v39.1.5364.
Pełny tekst źródłaRozprawy doktorskie na temat "Filtres multicouches"
Lo, Hine Tong Dominique. "Méthodes d'analyse des structures multicouches-multiconducteurs : applications au filtrage microonde en microruban suspendu". Brest, 1989. http://www.theses.fr/1989BRES2021.
Pełny tekst źródłaDenis, Stéphane. "Caractérisation théorique et expérimentale de structures de propagation multicouches - application aux filtres plaques micro-ondes à hautes performances". Brest, 1997. http://www.theses.fr/1997BRES2054.
Pełny tekst źródłaMalzac, Jean-Paul. "Modélisation des systèmes optiques multicouches : application aux filtres accordables et aux miroirs de Bragg". Montpellier 2, 1996. http://www.theses.fr/1996MON20212.
Pełny tekst źródłaPérigaud, Aurélien. "Conception de banques de filtres micro-ondes passifs compacts dans la bande 2-20 GHz à l’aide des technologies multicouches". Limoges, 2009. http://aurore.unilim.fr/theses/nxfile/default/f1290723-ecb0-4e3f-978e-d4303d3f8000/blobholder:0/2009LIMO4011.pdf.
Pełny tekst źródłaThe purpose of this study is to propose innovating compact filters, to be integrated within future or current microwave equipments, such as radars or electronic warfare devices. Learning on coupling matrices theory, already existing structures and multilayer technologies, new kinds of coupling have been investigated and new filtering structures have been developed such as the Vertical Inter-digital Filters (VIF), the “snake” filters or the Folded Inter-digital Filters (FIF). A method to synthesize VIF has been elaborated, and benefits from contributions of the Rectangular Boundary Division Method (RBDM) to calculate more precisely couplings in VIF structures. The validation of the proposed filters, by the manufacturing and the measurement of reference structures, made possible the development of more accomplished devices. As a result, this study brings to designers a whole sample group of innovating and compact filters
Bourgade, Antoine. "Composants multicouches spatialement structurés pour les domaines du visible et de l'infrarouge". Thesis, Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0318.
Pełny tekst źródłaThe aim of this thesis was to demonstrated that optical quality thin layers based on chalcogenide glasses can be manufactured using electron beam deposition. In particular, we carried out a detailed study of As2S3 layers for the realization of multilayer optical filters. These layers have photosensitive properties and it has been shown that photoinduced optical thickness (index and / or thickness) variations can be either positive (+ 4%) or negative (-2%). We have also shown that by using Ag / As2S3 bilayers, it is possible, by photoinduced phenomena, to control the local transmitted amplitude. We then demonstrated that these chalcogenide layers are compatible with the fabrication of single and multi-cavity Fabry-Perot band-pass optical interference filters and that the use of chalcogenide-based layers not only allows the fabrication of optical filters with performances similar to those obtained with conventional optical thin film materials but also to improve these performances by performing an a-posteriori correction of the variations of the optical properties over the surface of the component and produce components with very high uniformity. Finally, we have shown that the use of chalcogenide glass layers offers a new approach for the fabrication of optical diffractive optical elements. To achieve this, we have developed a dedicated technique for the production of volumetric diffractive optical elements (similar to lithography) for producing similar diffractive optical elements but based on photoinduced index variations
Belin, Joffrey. "Fabrication de filtres interférentiels par dépôt PECVD pour l'éclairage LED". Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/10670.
Pełny tekst źródłaSorce, Stéphane. "Filtre mosaïque hyperspectral". Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4348.
Pełny tekst źródłaHyperspectral mosaic filter appears to be the perfect solution to lighten the spectral imagers used in space missions. Such applications require the use of multilayer interference filters. This work aims to find solutions to achieve hyperspectral mosaic filter with interference filters rather than the conventionally used coloured resins. In order to achieve this, a theoretical study on the simplification of multilayer designs was performed. It appears that the stacks are thicker, which makes them difficult to pattern. Several methods of patterning were studied, especially the lift-off technique which is traditionally used and the lift-up. The latter has the advantage to avoid adding the technological risk associated with each filter production. A trade-off between these two techniques was done as well as experimental productions. These were then characterized by a bench developed for this purpose which has experimentally validate the technique used
Cohen, Ludovic. "Contribution à l'étude et à la modélisation de circuits coplanaires multicouches par une méthode itérative". Toulouse, INPT, 2002. http://www.theses.fr/2002INPT008H.
Pełny tekst źródłaDuchêne, Marie. "Développement d'une nouvelle technologie pour la réalisation de filtres interférentiels de type "allumette"". Phd thesis, Université Paul Cézanne - Aix-Marseille III, 2009. http://tel.archives-ouvertes.fr/tel-00471569.
Pełny tekst źródłaBêche, Bruno. "Etude de filtres spectraux accordables en optique integree sur semi-conducteurs iii-v : guides birefringents dans les multicouches gaas/alas". Besançon, 1999. http://www.theses.fr/1999BESA2006.
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