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Статті в журналах з теми "Sources optiques"
Khadir, Samira, Mahmoud Chakaroun, and Azzedine Boudrioua. "Effet du plasmon de surface localisé sur les propriétés des sources organiques (OLED)." Photoniques, no. 90 (January 2018): 26–27. http://dx.doi.org/10.1051/photon/20189026.
Повний текст джерелаArbouet, Arnaud, Florent Houdellier, Giuseppe Mario Caruso, Sophie Meuret, Mathieu Kociak, and Sébastien Weber. "Observer la matière à l’échelle du nanomètre et de la femtoseconde : la microscopie électronique en transmission ultrarapide." Photoniques, no. 102 (May 2020): 26–30. http://dx.doi.org/10.1051/photon/202010226.
Повний текст джерелаBousquet, Bruno, Delphine Syvilay, and Cécile Fabre. "Les pistolets LIBS : Applications au patrimoine et à la géologie." Photoniques, no. 103 (July 2020): 42–45. http://dx.doi.org/10.1051/photon/202010342.
Повний текст джерелаGrojo, David. "L’émergence de procédés d’écriture laser 3D dans les technologies silicium." Photoniques, no. 112 (2022): 37–42. http://dx.doi.org/10.1051/photon/202211237.
Повний текст джерелаLarroque, Tiphaine. "Moments de voyage ou l’expérience d’un espace potentiel : « Parc Central » de Dominique Gonzalez-Foerster." Source(s) – Arts, Civilisation et Histoire de l’Europe, no. 6 (October 19, 2022): 81–97. http://dx.doi.org/10.57086/sources.352.
Повний текст джерелаIntes, X., B. Le Jeune, F. Pellen, Y. Guern, J. Cariou, and J. Lotrian. "Determination of optical properties of multiple-scattering media by using a coherent-modulated source." Journal of Optics 28, no. 5 (October 1997): 218–24. http://dx.doi.org/10.1088/0150-536x/28/5/008.
Повний текст джерелаGerard, Jean-Michel, and Julien Claudon. "Des trompettes photoniques pour les technologies quantiques." Photoniques, no. 91 (May 2018): 29–32. http://dx.doi.org/10.1051/photon/20189129.
Повний текст джерела-MESQUIDA, Guy. "Les sources laser multicolores : un pas décisif vers les réseaux tout optique." Revue de l'Electricité et de l'Electronique -, no. 09 (1999): 63. http://dx.doi.org/10.3845/ree.1999.097.
Повний текст джерелаFade, Julien, Matthieu Boffety, and Vincent Devlaminck. "L’imagerie Polarimétrique." Photoniques, no. 109 (July 2021): 57–60. http://dx.doi.org/10.1051/photon/202110957.
Повний текст джерелаHong, D., G. Sandolache, T. Capelle, J. M. Bauchire, E. Le Menn, and C. Fleurier. "Une source de rayonnement développée pour des mesures optiques de spectroscopie d'absorption large bande." Journal de Physique IV (Proceedings) 108 (June 2003): 285–88. http://dx.doi.org/10.1051/jp4:20030645.
Повний текст джерелаДисертації з теми "Sources optiques"
Mirioni, Laurent. "Sources X Ultra-Lumineuses : Contreparties Optiques." Phd thesis, Université Louis Pasteur - Strasbourg I, 2002. http://tel.archives-ouvertes.fr/tel-00007374.
Повний текст джерелаHage, Charles-Henri. "Sources optiques fibrées pour applications biomédicales." Phd thesis, Université de Bourgogne, 2013. http://tel.archives-ouvertes.fr/tel-00907642.
Повний текст джерелаEl, Mansouri Ibrahim. "Sources impulsionnelles picosecondes tout optique à très haut débit : applications aux télécommunications optiques." Thesis, Dijon, 2013. http://www.theses.fr/2013DIJOS064/document.
Повний текст джерелаThis thesis presents the work carried out on the realization of fibered 40-GHz picosecond optical pulse sources in the telecommunications C-band. In the first part, we present a numerical and experimental study of the generation of 40-GHz pulse trains thanks to the nonlinear compression of an initial beat-signal by multiple Four-Wave Mixing process. Enhanced temporal stability is achieved by generating the sinusoidal beating thanks to a Mach-Zehnder modulator driven at its zero-transmission working point. In order to improve the quality of the generated pulses, we also demonstrate the suppression of stimulated Brillouin back-scattering by inserting several optical isolators into the compression line. In the next part, we present the generation of low duty-cycle pulse trains by using a nonlinear compressor line based on 4 segments of fiber. The generated pulse trains have been encoded and then multiplexed to achieve a high bit rate signal (160 Gb/s). In the last part, we present the technology transfer steps of this optical source, such as creating a prototype of the source, prior art search and market research
Azzoune, Abderrahim. "Nanofibres optiques pour la réalisation de sources de photons corrélés." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLO009.
Повний текст джерелаSources of correlated photon pairs are key components required for quantum telecommunications networks. Implementing these sources directly with optical fibers minimizes the insertion losses. We propose to design such a source from a tapered optical fiber.The tapered fiber has a diameter lower than 500 nm over a length of a few centimeters. The small diameter of the tapered section favors the non-linear effects, while the unstretched sections make it possible to connect this tapered fiber with the fibers of the telecommunication networks with very low losses.In this thesis, we present a design of a new source, fully fibered of correlated photons based on standard telecommunications tapered fibers (SMF28). To produce these pairs of photons we will use the parametric fluorescence due to symmetry breaking at the surface of a silica nanofiber.We have developed an optical microscopy measurement technique to measure all the profile of tapered fibers with nanometer resolution far beyond the diffraction limit.In parallel, we modeled the second-order nonlinear surface susceptibility by taking into account the vector aspect of the propagation of the optical field in a two or three-layered microfiber. In a second step, we define modal phase matchings that are necessary to obtain a strong parametric fluorescence. We size this nanofiber for a good optimization of pairs generation efficiency. The entire process of photon creation will be modeled
Guignard, Céline Martine. "Réalisation de sources impulsionnelles pour les télécommunications optiques." Rennes 1, 2005. https://tel.archives-ouvertes.fr/tel-00260197.
Повний текст джерелаHanna, Marc. "Sources laser femtoseconde à fibre optique." Habilitation à diriger des recherches, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00806296.
Повний текст джерелаRicard, Vincent. "Aérosols dans l'Arctique européen : sources, transformations et propriétés optiques." Phd thesis, Université Joseph Fourier (Grenoble), 2001. http://tel.archives-ouvertes.fr/tel-00701298.
Повний текст джерелаRaybaut, Myriam. "Sources paramétriques optiques innovantes à base de semiconducteurs isotropes." Paris 11, 2006. http://www.theses.fr/2006PA112238.
Повний текст джерелаTunable mid-infrared (IR) sources are of high interest for many applications, including chemical monitoring, gas analysis, remote sensing, and IR countermeasures. A promising way to obtain such mid-IR emission is to use optical sources based on parametric conversion in nonlinear materials. However, apart from few materials (ZnGeP2, AgGaSe2, CdSe,…), most of usual nonlinear materials exhibit strong multiphonon absorption beyond 5 µm. Therefore, an important issue is to find adequate materials for the 812 µm band. In this context, semiconductors of the technological mainstream, such as GaAs or ZnSe, are excellent candidates for mid-infrared parametric generation. Indeed, they display high non linear susceptibility and they are transparent from the near-infrared up to 20 µm. However, since these materials are isotropic, quasi-phase-matching techniques have to be implemented to get an efficient conversion. Nonetheless, this limitation can be overcome using Fresnel birefringence that takes place at total internal reflection. We present here an experimental and theoretical study of this phase matching technique : difference frequency generation experiments are carried out and new models are developped to take into account all the physical processes involved. We investigate then self-difference frequency mixing in Cr:ZnSe laser using Fresnel phase matching. Taking advantage of both the lasing and nonlinear properties of this material, we demonstrate that 8–12 µm radiation can be produced using a single pump beam at 1. 9 µm. Subsequently, difference frequency mixing between the 1. 9µm pump beam and 2. 3µm laser beam produces a mid-IR radiation in the 9 µm range
Leconte, Baptiste. "Développement de sources laser à fibre dopée Nd3+ pour une émission autour de 900 nm et 450 nm." Caen, 2016. https://tel.archives-ouvertes.fr/tel-01505597.
Повний текст джерелаMany fields including telecommunications and biomedicine require a laser source emitting in the blue spectral region with a diffraction-limited beam. To obtain such a source, the solution adopted in this thesis work is to develop a high-power Nd-doped fiber laser source operating on the 4F3/2-4I9/2 transition of Neodymium ion at 900 nm. After frequency doubling in a non-linear crystal, it is then possible to have access to wavelengths around 450 nm. However in aluminosilicate fibers, there is a strong competition between the three-level transition 4F3/2-4I9/2 of Nd3+ ion and the four-level scheme of the 4F3/2-4I11/2 transition around 1060 nm, which constitutes the main obstacle to overcome to obtain an efficient laser emission at 900 nm. As a first step, a theoretical study allows us to determine optimal geometrical parameters of double-clad Nd-doped fibers to foster laser emission on the transition of interest. Once fabricated by our industrial partner iXblue, the optimized fibers are used in several laser and amplification architectures leading for instance to wavelength-tunability on a wide spectral bandwidth around 900 nm and to selective amplification of transverse guided modes. In parallel, performances reached in terms of power and beam spatial quality at 900 nm permits an efficient frequency conversion, which led to the development of new blue laser sources operating in continuous-wave and pulsed regimes around 450 nm
Roy, Aude. "Architectures de sources lasers blanches à fibres optiques microstructurées actives." Limoges, 2008. https://aurore.unilim.fr/theses/nxfile/default/4aaca4ba-e8fe-4494-9e83-92ff7575d558/blobholder:0/2008LIMO4035.pdf.
Повний текст джерелаCurrently supercontinuum sources, which are compact, low-cost and emitting in the visible, combine microstructured fiber to a pulsed microlaser. In these systems, the spectral power density rarely exceeds ten μW/nm. A solution to this problem is to exploit the optical amplification. A new concept of nonlinear active air/silica microstructured optical fiber with an air cladding was developed optimizing the guidance of a multimode pump in the internal cladding while a core ensuring the creation of a spectral enlargement under 1064 nm nanoseconde pulsed pumping. A prototype of this optical fiber then was manufactured. Amplifiers and lasers architectures have been developed from the optical fiber. The results validate the proposed principle
Книги з теми "Sources optiques"
Louis, Morzac, ed. Science en direct: De l'arc-en-ciel au laser / Kathryn Whyman Louis Morzac. Saint-Lambert: Les Éditions Héritage, 1990.
Знайти повний текст джерелаArnaud, Régine VE, Jeanine Amiel, and Nadège Arnal. La validation de méthode en spectrométrie d'émission optique à source plasma. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2083-2.
Повний текст джерелаAdam, Christelle, Jeanine Amiel, Nadège Arnal, and Régine Arnaud. Validation de Méthode en Spectrométrie d'émission Optique à Source Plasma: De l'échantillon Au Résultat. EDP Sciences, 2021.
Знайти повний текст джерелаЧастини книг з теми "Sources optiques"
FARAHANDOUZ, Farbod, and Iman MASSOUD SRIDI. "La communication exolingue à l’épreuve des gestes : le cas du cours d’arabe égyptien." In Distance entre langues, distance entre cultures, 15–22. Editions des archives contemporaines, 2021. http://dx.doi.org/10.17184/eac.3685.
Повний текст джерела"4 Préparation et traitement des échantillons avant analyse." In La validation de méthode en spectrométrie d'émission optique à source plasma, 83–102. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2083-2-008.
Повний текст джерела"Préface." In La validation de méthode en spectrométrie d'émission optique à source plasma, 25–26. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2083-2-003.
Повний текст джерела"7 Exploitation des résultats." In La validation de méthode en spectrométrie d'émission optique à source plasma, 223–72. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2083-2-011.
Повний текст джерела"1 Introduction." In La validation de méthode en spectrométrie d'émission optique à source plasma, 31–48. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2083-2-005.
Повний текст джерела"Liste des tableaux." In La validation de méthode en spectrométrie d'émission optique à source plasma, 11–16. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2083-2-001.
Повний текст джерела"Bibliographie." In La validation de méthode en spectrométrie d'émission optique à source plasma, 293–303. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2083-2-014.
Повний текст джерела"5 Qualification et suivi de l’appareillage." In La validation de méthode en spectrométrie d'émission optique à source plasma, 103–22. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2083-2-009.
Повний текст джерела"6 Réglages instrumentaux et stratégie d’étalonnage." In La validation de méthode en spectrométrie d'émission optique à source plasma, 123–222. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2083-2-010.
Повний текст джерела"Les coordinateurs." In La validation de méthode en spectrométrie d'émission optique à source plasma, 304. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2083-2-015.
Повний текст джерелаТези доповідей конференцій з теми "Sources optiques"
Bourassin-Bouchet, C., Z. Diveki, S. de Rossi, E. English, E. Meltchakov, O. Gobert, D. Guénot, et al. "Optiques pour les impulsions attosecondes." In UVX 2010 - 10e Colloque sur les Sources Cohérentes et Incohérentes UV, VUV et X ; Applications et Développements Récents. Les Ulis, France: EDP Sciences, 2011. http://dx.doi.org/10.1051/uvx/2011005.
Повний текст джерелаCormier, E. "Amplificateurs paramétriques optiques pour la physique attoseconde." In UVX 2008 - 9e Colloque sur les Sources Cohérentes et Incohérentes UV, VUV et X : Applications et Développements Récents. Les Ulis, France: EDP Sciences, 2009. http://dx.doi.org/10.1051/uvx/2009006.
Повний текст джерелаGrange, R. "Optiques spatiales pour les surveys en astronomie UV." In UVX 2010 - 10e Colloque sur les Sources Cohérentes et Incohérentes UV, VUV et X ; Applications et Développements Récents. Les Ulis, France: EDP Sciences, 2011. http://dx.doi.org/10.1051/uvx/2011011.
Повний текст джерелаLamaignère, L., R. Courchinoux, J. C. Poncetta, and H. Bercegol. "L’endommagement des optiques du LMJ : problématique, mécanismes et métrologie." In UVX 2010 - 10e Colloque sur les Sources Cohérentes et Incohérentes UV, VUV et X ; Applications et Développements Récents. Les Ulis, France: EDP Sciences, 2011. http://dx.doi.org/10.1051/uvx/2011014.
Повний текст джерелаGirard, S., Y. Ouerdane, N. Richard, A. Boukenter, M. Cannas, and R. Boscaino. "Approche couplée pour le développement de matériaux optiques résistants aux radiations." In UVX 2010 - 10e Colloque sur les Sources Cohérentes et Incohérentes UV, VUV et X ; Applications et Développements Récents. Les Ulis, France: EDP Sciences, 2011. http://dx.doi.org/10.1051/uvx/2011010.
Повний текст джерелаCrespo-Monteiro, N., L. Nadar, N. Destouches, F. Vocanson, L. Bois, and T. Epicier. "Contrôle optique de la croissance et de la déformation de nanoparticules métalliques au sein de matrices mésoporeuses de TiO2." In UVX 2012 - 11e Colloque sur les Sources Cohérentes et Incohérentes UV, VUV et X ; Applications et Développements Récents, edited by E. Constant, P. Martin, and H. Bachau. Les Ulis, France: EDP Sciences, 2013. http://dx.doi.org/10.1051/uvx/201301011.
Повний текст джерелаLefort, Claire, Mathieu Chalvidal, Alexis Parenté, Véronique BLANQUET, Henri Massias, Laetitia MAGNOL, and Emilie Chouzenoux. "Imagerie 3D par microscopie multiphotonique appliquée aux sciences du vivant : la chaine instrumentale et computationnelle FAMOUS." In Les journées de l'interdisciplinarité 2022. Limoges: Université de Limoges, 2022. http://dx.doi.org/10.25965/lji.221.
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