Literatura académica sobre el tema "Photonique – Optique"
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Artículos de revistas sobre el tema "Photonique – Optique"
Bigot, Laurent, Guillaume Ducournau y Alberto Amo. "La photonique dans la métropole lilloise". Photoniques, n.º 114 (2022): 17–20. http://dx.doi.org/10.1051/photon/202211417.
Texto completoSciamanna, Marc y Sylvain Lecler. "La photonique en région Grand Est". Photoniques, n.º 121 (2023): 21–26. http://dx.doi.org/10.1051/photon/202312121.
Texto completoGrillot, Frédéric y Salvatore Pes. "Essor des communications optique en espace libre". Photoniques, n.º 126 (2024): 51–56. http://dx.doi.org/10.1051/photon/202412651.
Texto completoGerard, Jean-Michel y Julien Claudon. "Des trompettes photoniques pour les technologies quantiques". Photoniques, n.º 91 (mayo de 2018): 29–32. http://dx.doi.org/10.1051/photon/20189129.
Texto completoKopp, Christophe, Stéphane Bernabe, Mohand Achouche y Sébastien Le Beux. "Photonique sur silicium : des réseaux à fibres au traitement optique de données". Photoniques, n.º 98 (septiembre de 2019): 24–27. http://dx.doi.org/10.1051/photon/20199824.
Texto completoKudlinski, Alexandre, Arnaud Mussot y Géraud Bouwmans. "Fibres optiques topographiques". Photoniques, n.º 99 (noviembre de 2019): 28–32. http://dx.doi.org/10.1051/photon/20199928.
Texto completoBaribaud, Michel. "Editorial : Optique intégrée et photonique, journée "électronique 2005", ENSERG". J3eA 4 (2005): 001. http://dx.doi.org/10.1051/j3ea:2006000.
Texto completoCardinal, Thierry, Matthieu Lancry, Lionel Canioni, Bertrand Poumellec y Wilfried Blanc. "Fonctionnaliser le verre pour de nouvelles propriétés optiques". Reflets de la physique, n.º 74 (diciembre de 2022): 70–75. http://dx.doi.org/10.1051/refdp/202274070.
Texto completoCollet, Éric. "Transitions photoinduites ultrarapides : un axe émergent pour la photonique". Photoniques, n.º 108 (mayo de 2021): 28–31. http://dx.doi.org/10.1051/photon/202110828.
Texto completoMasselin, P., G. Mouret, A. V. Andreev, A. V. Balakin, A. B. Kozlov, I. A. Ozheredov, I. R. Prudnikov y A. P. Shkurinov. "Somme de fréquence et mélange optique à quatre ondes dans un cristal photonique à une dimension: interaction non-colinéaire et excitation d'ondes inhomogènes". Journal de Physique IV (Proceedings) 12, n.º 5 (junio de 2002): 289–90. http://dx.doi.org/10.1051/jp4:20020165.
Texto completoTesis sobre el tema "Photonique – Optique"
Begue, Aurélien. "Optogénétique bi-photonique". Thesis, Paris 5, 2012. http://www.theses.fr/2012PA05T060.
Texto completoOptogenetics relies on the genetically targeted expression of light sensitive proteins in specific cell populations. This novel field has had a large impact in neuroscience, allowing both monitoring and stimulating the activity of specific neuronal populations, in intact brain preparations. Optogenetic tools have been used to record functional signals, such as changes in membrane potential or intracellular calcium concentration, as well as to modulate the excitability of neurons. To fully exploit the potentiality of optogenetics, new microscopy techniques have been developed to optimize illumination of photo-active compounds in situ. In particular, an important effort has been directed towards improving the spatial and temporal resolution of light stimulation, in order to match the dynamics of physiological processes. In this frame, the use of two-photon excitation becomes necessary to ensure penetration of light in scattering biological tissues, as well as confining the excitation volume and improve the specificity of illumination. My thesis was dedicated to the development and use of advanced optical methods for two-photon excitation of optogenetic tools. In a first project, we combined optical approaches (generalized phase contrast and temporal focusing) to perform two-photon activation of neurons expressing the light-sensitive cationic channel channelrhodopsin-2 (ChR2). Our work demonstrated for the first time the simultaneous generation of action potentials in multiple neurons, while maintaining a micrometric axial and lateral resolution. These results pointed out the advantages of light sculpting to increase both the specificity and the flexibility of photo-stimulation.In order to investigate the potential of this technique for efficient in-depth stimulation, we therefore studied the propagation through scattering biological media of laser beams generated by two different light patterning techniques, generalized phase contrast and digital holography in combination with temporal focusing. We demonstrated that temporal focusing enabled the excitation volumes to maintain micrometric axial confinement, as well as to maintain well defined patterns deep inside tissues. We also demonstrated for the first time the activation of ChR2 at depth over 200 μm.Finally, the last part of my PhD was focused on testing light patterning methods for the activation of two other photosensitive proteins, the excitatory channel C1V1 and the inhibitory pump, halorhodopsin
Caër, Charles. "Cristaux photoniques à fente : vers une photonique silicium hybride à exaltation localisée du champ électromagnétique". Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00954411.
Texto completoVergyris, Panagiotis. "Vers les technologies quantiques basées sur l’intrication photonique". Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR4142/document.
Texto completoThe aim of this thesis was to develop photonic entanglement sources and study their implementation in the general field of quantum information technologies. To this end, a novel fully wave-guided, high performance photonic entanglement source is presented, able to generate hyper-entangled states in the observables of polarization and energy-time by means of a nonlinear Sagnac loop. The waveguide-based design makes it flexible, reliable, and adaptable to a wide spectral range, paving the way towards compact photonic entanglement generators, compatible with fiber-based communication systems and networks. This has been underlined by generating and distributing hyperentanglement in 5x2 dense wavelength division multiplexed channel telecom pairs, simultaneously, towards higher bit rates. The quality of the generated entanglement has been qualified by violating the Bell inequalities in a 16-dimension Hilbert space. Moreover, to adapt the wavelength of the entangled telecom photon pairs to the absorption wavelength of current quantum memory systems, a coherent wavelength converter is demonstrated. Furthermore, within the framework of quantum metrology, a new concept for a high-precision chromatic dispersion (CD) measurement in standard single mode fibers is introduced and demonstrated. In this demonstration, due to conceptual advantages enabled by quantum optics, an unprecedented 2.6 times higher accuracy on CD measurements is shown, compared to state-of-the-art techniques. In the same context, a new protocol for measuring two-photon phase shifts is performed using single photon detection only, promising scalable and potential real device applications with limited resources and simplified detection schemes. Finally, any potential application of quantum optics will be realized using small-scale devices. In this framework, an integrated on-chip heralded path entanglement generator is demonstrated, and shown to be adaptable to logic gate operations
Hamel, Philippe. "Réflectométrie optique faiblement cohérente sensible à la phase : principe et application à l'étude de composants optiques innovants". Paris, ENST, 2009. http://www.theses.fr/2009ENST0055.
Texto completoThe purpose of this work is to use the phase-sensitive Optical Low-Coherence Reflectometry (OLCR) method in order to study and characterize a large panel of innovative photonic components. We aim at showing that phase sensitive OLCR can bring several answers to key issues regarding the physics of such components. We will first define a frame to this study by presenting the physical properties useful to the understanding of it and by presenting a non-complete state of the art of the existing characterization methods in order to determine the role and the specificities of the OLCR. We will then show the OLCR technique itself. We will describe its theoretical principle, its applications and its limitations. Eventually, we will present several results for the different compnents that have been studied. Starting with optical fibers we will present some measurements of the index/amplification relation in an Erbium doped fiber amplifier, the analysis of the spatial evolution of the optical parameters of a micro-structured fiber or the characterization of the dispersion values of the modes of a multi-mode fiber. The second part will concentrate on the characterization of photonic crystal slab waveguides and, more specifically, the link between slow light effects and scattering in those guides. We will try in each of these studies to define clearly the context and the aims before summing up these resutls and presneting future perspectives
Milord, Laurent. "Dispositifs photoniques innovants pour le piégeage optique : Cavité étendue à double période et structure hybride cristal photonique-nano antenne". Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI026/document.
Texto completoSince the first work on optical tweezers by Ashkin, a lot of efforts have been made to trap nanoparticles. However, optical tweezers are diffraction limited and can hardly trap particles below 200 nm. This limit can be overstepped using the optical gradient forces of an evanescent field generated and amplified by a photonic nano cavity. Nonetheless, this approach faces two major issues for applications: the trapping section is very small, making the capture of a Brownian motion animated particle very unlikely, and for the “ultimate” nano antennas with nanometric optical modes, their excitation from free space is not effective. The goal of this work is to overcome these two difficulties. To increase the trapping surface, we will first present a device using slow Bloch modes within a double period extended cavity designed in a photonic crystal made out of SOI. We will show that this approach allow for the trapping of 200, 100 and 75 nm particles on an extended surface of 5x5 µm² using a free space laser beam excitation. Secondly, we will investigate the free space excitation of nanometric structures. A photonic crystal – nano antenna mixed structure will be presented, where the photonic crystal is used as a photon pool for the nano antenna. This lead to a funnel effect where the light coming from a large free space laser beam (5µm wide) is focused into the nano antenna. The trapping of 100 nm particles will demonstrate the relevance of this approach
Bourgeois, Martin. "Commutation optique dans un cristal photonique à base de silicium". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ62578.pdf.
Texto completoVallée, Jean-Michel. "Source laser accordable jumelant photonique sur silicium et fibre optique". Master's thesis, Université Laval, 2021. http://hdl.handle.net/20.500.11794/69037.
Texto completoThis master's thesis is on the design of a hybrid laser combining optical bers and the technology of silicon photonics. The main objective is to achieve a laser with great control and exibility over its emission parameters and with good performances for the eld of optical telecommunications. Until now, several approaches leading to laser integration on the silicon photonics have been demonstrated. Unlike integration approaches which aim to produce the most compact source possible, the chosen approach aims to produce a high-performance laser which exploits both the optical amplication performance of the doped bers as well as the potential of light processing and precision that oers the silicon photonic platform. The operating principle as well as the theoretical models of dierent optical devices accessible thanks to the silicon photonics are presented in detail. These devices allowing optical connement at the 100-nanometer scale level as well as the manipulation of light are key elements in the design of optical lters for the laser cavity. The performances of a Vernier lter on silicon are analyzed by means of numerical simulations. Two types of hybrid lasers are presented in this document. The rst is a multimode laser allowing a selection of the spectral spacing between its modes. The second type of laser is a single-mode laser operating at 2000 nm and tunable over a range of 100 nm. In the rst case, the amplication medium of the cavity is composed of an optical ber doped with erbium while in the second, it is a ber doped with thulium.
Noury, Adrien. "Photonique hybride des nanotubes de carbone". Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112199/document.
Texto completoOn-chip optical communication may increase drastically performances and consumption of communication systems. Indeed, optical channels do not face limitations that metallics interconnects do. Even better would be the achievable data rate due to the multiplexing possibility in optics. In order to keep compatibility with electronic devices, optical components and interconnects should be built in silicon. However, this material is not suitable for some optical function, such as laser sources. Thus, there is a need to integrate alternative materials to compensate for silicon weaknesses. My PhD work focuses on integration of carbon nanotube on silicon for photonics applications. In this work, potential use of carbon nanotube for light emission function is investigated. First, I will propose clue to understand the appearance of optical gain in semiconducting carbon nanotube. Such investigation is done by mean of pump-probe experiments, where the excitons lifetimes are measured. Those lifetimes slightly increase while centrifugation time and speed is increased, during the extraction process. A possible explanation is that defect-free carbon nanotubes are selected by the centrifugation process. In parallel, I worked on designing an efficient method to couple nanotubes photoluminescence with silicon waveguides. This method appears to be quite robust, and allows to observe coupling between the nanotube photoluminescence and the optical mode of the waveguide. In order to obtain a more intense interaction between the optical mode and carbon nanotubes, I investigated the coupling between carbon nanotubes and several photonic cavities, including microdisks, Fabry-Pérot cavities and ring resonators. Specifically, ring resonators allow to measure the photoluminescence of carbon nanotube structured by the resonant modes. Several configurations are studied to understand more in-depth the coupling mechanisms: micro-photoluminescence, guided photoluminescence and integrated photoluminescence
Rasigade, Gilles. "Modulateur optique haute-fréquence sur subtrat silicium-sur-isolant". Paris 11, 2010. http://www.theses.fr/2010PA112158.
Texto completoThe silicon photonics has emerged as the key area of research for optical telecommunication with the objective of developing an integrated transceiver fully-compatible with the available CMOS technology. In this context, the work of my thesis is focused on the structure of the optical modulator, integrated on a silicon-on-insulator (SOI) substrate and for applications working at the bitrates of 10 and 40 Gbit/s. Its active structure is based on the carrier depletion obtained in a reverse biased junction and leads to an intensity modulation at the output of a Mach-Zehnder interferometer. The optimization of the structure produced an optical modulator design which exhibits a VpLp product of 1,7 V. Cm. Insertion loss as low as 3dB and a -3 dB cut off frequency of 35 GHz. The light and RF copropagation has been studied as well and has validated the operation of the component at the bitrate of 40 Gbit/s. A CMOS technological process has been established and chips have been fabricated at CEA/LETI then characterized at IEF. Finally, this work has led to the design of a silicon optical modulator with characteristics compatible with 40 Gbit/s applications, as well as general result for the optimization of this component. Its integration with laser sources and photo detectors will lead is the future to the emergence of silicon photonics for integrating optical telecommunication
Aktas, Djeylan. "Photonique quantique expérimentale : cohérence, non localité et cryptographie". Thesis, Université Côte d'Azur (ComUE), 2016. http://www.theses.fr/2016AZUR4142.
Texto completoIn this thesis we study the coherence of light emitted by entangled photon-pair sources and micro-lasers. We have generated an manipulated entangled photonic states and investigated both fundamental (non locality) and applied (quantum cryptography) research directions. The objective of two fundamental studies on non locality was to partially relax the strong assumptions on which standard Bell tests rely. To this end, we redefined, in collaboration with the University of Geneva, the formalism of locality taking into account the influence, on correlation measurements, of the freedom of choice (in the basis settings) and of the limitation of the overall detection efficiency. Both assumptions allow devising generalized Bell inequalities whose experimental violations indicate that we can still attest for non locality for the observed states. In addition, we have studied and realized an experimental setup allowing to distribute entangled photon pairs in paired telecom channels for high bit rate quantum cryptography. We have shown that entanglement is preserved over a distance of 150 km with record rates for similar realizations, by mimicking classical network solutions exploiting, in an optimal fashion, the capacity of an optical fiber link via dense spectral multiplexing. Finally, we have studied the properties of light emitted by semiconductor lasers showing reduced dimensionality. This micro-lasers actually provide output light under high intensity fluctuations when they are pumped below the threshold. Their study allowed to refine our understanding on how the coherence builds up in these systems as the cavity is filled with photons
Libros sobre el tema "Photonique – Optique"
1934-, Asakura Toshimitsu, ed. International trends in optics and photonics: ICO IV. Berlin: Springer, 1999.
Buscar texto completoLourtioz, Jean-Michel, Herve Rigneault y Claude Delalande. La Nanophotonique. Paris: Herme s Science publications, 2005.
Buscar texto completoKiyotoshi, Yasumoto, ed. Electromagnetic theory and applications for photonic crystals. Boca Raton, FL: Taylor & Francis, 2006.
Buscar texto completoChang, William S. C. 1931-, ed. RF photonic technology in optical fiber links. Cambridge: Cambridge University Press, 2002.
Buscar texto completoCarl, Teich Malvin, ed. Fundamentals of photonics. 2a ed. Hoboken, N.J: Wiley Interscience, 2007.
Buscar texto completoCarl, Teich Malvin, ed. Fundamentals of photonics. New York: Wiley, 1991.
Buscar texto completoITG-Fachtagung Photonische Netze (20th 2019 Hochschule für Telekommunikation Leipzig). Photonische Netze: Beiträge der 20. ITG-Fachtagung, 08.-09. Mai 2019, Hochschule für Telekommunikation Leipzig. Berlin: VDE Verlag GmbH, 2019.
Buscar texto completoFOUNDATIONS OF PHOTONIC CRYSTAL FIBRES; FREDERIC ZOLLA...ET AL. LONDON: IMPERIAL COLLEGE PRESS, 2005.
Buscar texto completoYupapin, Preecha y Jalil Ali. Small Scale Optics. Taylor & Francis Group, 2019.
Buscar texto completoYupapin, Preecha. Small Scale Optics. Taylor & Francis Group, 2013.
Buscar texto completoCapítulos de libros sobre el tema "Photonique – Optique"
"Propriétés optiques". En Photonique des Morphos, 65–84. Paris: Springer Paris, 2010. http://dx.doi.org/10.1007/978-2-287-09408-8_3.
Texto completoBRÜCKERHOFF-PLÜCKELMANN, Frank, Johannes FELDMANN y Wolfram PERNICE. "Les puces photoniques". En Au-delà du CMOS, 395–422. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9127.ch9.
Texto completo"Vers une approche dynamique des propriétés optiques". En Photonique des Morphos, 117–22. Paris: Springer Paris, 2010. http://dx.doi.org/10.1007/978-2-287-09408-8_6.
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