Зміст
Добірка наукової літератури з теми "Guide d'onde intégré"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "Guide d'onde intégré".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Дисертації з теми "Guide d'onde intégré"
Seiler, Anne-Laure. "Conception et réalisation de guide en optique guidée intégrée pour biopuces à fluorescence." Grenoble INPG, 2006. http://www.theses.fr/2006INPG0158.
Повний текст джерелаOptical chemical sensors and biosensors are attracting increasing research interest in applications such as environmental monitoring and biomedical diagnostics. A drawback of all fluorescence detection schemes based on evanescent wave excitation via prism or grating arrangement is the need to carefully align the devices relative to the excitation light beam. Moreover, more than 80% of fluorescence is transmitted to the substrate. Finally, such fluorescence sensors remain costly or bulky, which prevent biochips from being used as a portable testing tool. In this context, our approach consists in using structured Integrated Optical Waveguides, which are one solution to reduce the reader's cost and size. The principle is the capture of fluorescence emitted from the surface of a rib waveguide, which collects then guides it at the end-face of the chip to be detected. I report here the optimization of optical waveguide structures, prototype manufacturing and first results for biochip applications including integrated photonic crystal filters and amplifiers
Leroy, Benjamin. "Etude et développement d'un système de signalisation holographique." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS126.
Повний текст джерелаThis work has focused on the design and realization of a planar lighting device based on plasmonic structures, for a 633nm operation. This device will be able to convert a coherent incident light into a uniform output beam over the surface of the device, collimated and with a predefined angle with respect to the plane of the device. To achieve this feature, the proposed solution is the use of an array of dielectric waveguides to distribute the light over the surface, and silver nanostructures chains coupled to the waveguides and dimensioned as antennas to retransmit the light out of the plane. The work carried out has highlighted the control of the coupling between the waveguide and the silver nanostructures chain, modulated by several parameters in a range between 10% and 90%: the number of particles, particle size, distance between the guide and the particles. By playing on the period of the chain, it is possible to obtain an out-of-plane radiation, with an angle determined by the diffraction gratings formula. Elementary emitters, consisting of a guide and particle chains, were manufactured in a clean room and characterized on a guided wave optical bench with Fourier plane projection set-up. The experimental radiation patterns are in agreement with the simulations one. First results have also experimentally confirmed the possibility of modulating the waveguide-chain coupling by modifying the dimensions of the particles. Finally, the waveguide network has been dimensioned for an 1 cm² surface and manufactured with projection lithography. The linear losses measured in the waveguides are of the order of 5 dB / mm. Several optimizations can be made to improve the quality of the guides. From the experimental data obtained and the beam propagation simulations, a realistic configuration of the lighting device including the number and positioning of the transmitters on the waveguide network has been proposed. All the works carried out validate the chosen approach
Doan, Phi Long. "Technologie émergente pour le développement de circuit RF et millimétriques à base de nanotubes de carbone." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALT080.
Повний текст джерелаThe fifth-generation (5G) technology is known as the new generation of mobile data connectivity and wireless communication systems. It will provide breakneck broadband speeds and will have enough capacity to perform every function without a decrease in connection speed, no matter how many peoples are connecting into the network at the same time. One of the main benefits of 5G technology over the fourth-generation (4G) technology is not only its speed of delivery, between 10Gbps and 100Gbps, but also the latency. Specifically, the underemployed spectrum in the millimeter-wave frequency band (30-300 GHz) might be seen as a potentially profitable solution for achieving the aforementioned purposes. However, the development of next generation of mm-wave high performance circuits and systems is requiring low-cost fabrication process, small area, low consumption and 3D integration. In this context, CNT-based technology has attracted a lot of attention and could be considered as an excellent candidate for designing the mm-wave circuits due to its outstanding characteristics as compared to the other materials. Therefore, in this thesis, in the framework of the ANR project TRICOT, CNT will be considered as particular materials to design and develop a new 3D integration technology and concept dedicated to future applications in mm-wave interconnects and circuits.The work achieved in this PhD thesis was principally concentrated in two directions. The first one involves in the utilization of CNT technology to design the AF-SIW circuits for mm-wave applications in E-band. The second direction concerns the utilization of the slow-wave concept for the miniaturization of AF-SIW circuits designed for the RF applications based on both conventional PCB and CNT technologies. In both subjects, the proposed structures were detailed, then theoretical analyses were developed, and simulation and measurement results were presented. The retro-simulations were also realized when needed, which permitted to validate the proposed concepts by proofs of concept.In the first chapter of this thesis, an overview concerning the techniques utilized to design and fabricate BM was introduced in both RF and mm-wave frequency bands. Miniaturization techniques and low-loss air-filled technology were also presented in this chapter. The second chapter introduced in detail the physical properties of carbon nanotubes. Due to its outstanding properties as compared to other materials, CNTs could be considered as a potential material for next-generation electronics applications in order to replace classical metal-based structures. The analytical and electromagnetic modeling of CNTs were also introduced in this chapter, based on the work performed at XLIM laboratory, Limoges, France. Thanks to the bulk model, the CNT-based devices are designed more easily, and with accuracy. In the third chapter, a detailed description of AFSIW waveguide based on CNT technology was presented. Furthermore, the CNT technology used to design the AFSIW waveguide was also applied to the design of 0-dB and 3-dB couplers based on the short-slot topology with the same concept. In the fourth chapter, AF-SW-SIW design blocks based on CNT technology designed at 28 GHz for RF applications was investigated and presented. Finally, the last chapter was dedicated to the detailed description of PAF-SW-SIW waveguide based on conventional PCB technology designed at 28 GHz for RF applications
Balan, Viorel. "Verres chalcogénures pour l'optique intégrée." Montpellier 2, 2003. http://www.theses.fr/2003MON20204.
Повний текст джерелаMangeat, Thomas. "Composants d'optique intégrée à coeur de Ta2O5. Application à la séparation et à la rotation d'états de polarisation." Aix-Marseille 3, 2006. http://www.theses.fr/2006AIX30058.
Повний текст джерелаA new buried ridge waveguide technology was developed associating the deposition of Ta205 by "Dual Ion Beam Sputtering" DIBS technology and the realization of low index materials by sol-gel process. The specific form factor of this vaveguide induces a strong polarisation dependency. The performances in transmission, the confinement of the guided modes and the optical integration density are function of the light polarization state. From these observations, an integrated polarization splitter and polarization rotator have been proposed to realize polarization independent integrated components. These two passive functions have been optimised, made and tested in the laboratory. The physical principle of these two components is based on mode coupling in integrated optics. The experimental extinction ratio of the integrated polarisation splitter is -17dB in TE and -10dB in TM at [lambda] = 1,568 [micro]m. The experimental extinction ratio of the integrated polarization rotator is -16dB (90 % of conversion efficiency) at [lambda] = 1,558 um. However, the strong insertion losses of these components (-10dB) need to be decreased for applications in telecommunication
Gorin, Arnaud. "Réalisation de guides d'onde plans faibles pertes en nitrure de silicium pour un biocapteur intégré." Thèse, Université de Sherbrooke, 2009. http://savoirs.usherbrooke.ca/handle/11143/1924.
Повний текст джерелаRavaro, Marco. "Guides d'onde non-linéaires GaAs/AlOx pour la génération paramétrique." Phd thesis, Université Paris-Diderot - Paris VII, 2008. http://tel.archives-ouvertes.fr/tel-00387097.
Повний текст джерелаLe premier point est l'optimisation du processus de fabrication. Le principal inconvénient des guides d'ondes GaAs/AlOx sont les larges pertes par diffusion provoquées par la rugosité des couches oxydées. De telles pertes ont pénalisé l'efficacité de dispositifs nonlinéaires intégrés déjà démontrés et empêché jusqu'à présent l'accomplissement de l'oscillation paramétrique. Dans le but d'améliorer la transmission des guides, un nouveau schéma de fabrication et d'oxydation a été introduit, et les résultats obtenus ont été systématiquement vérifiés par des mesures des pertes. Celles-ci ont été réduites, de manière reproductible, à 0.4 cm-1.
Le deuxième point est la caractérisation nonlinéaire des guides. Nous avons démontré la fluorescence paramétrique avec une accordabilité entre 1.7 et 2.7 micron et une efficacité de conversion comparable à celle des meilleurs guides en niobate de lithium. En plus de cela, nous avons exploité les interactions de génération de seconde harmonique et d'amplification paramétrique pour étudier précisément le gain paramétrique dans nos guides. A la dégénérescence nous avons mesuré un coefficient de gain paramétrique ≈ 4 cm-1 W-1/2 et démontré une amplification paramétrique G = Ps(L)/Ps(0) - 1 ≈ 4.5%.
Ces résultats sont très encourageants pour la réalisation d'un oscillateur paramétrique intégré. Sur la base de nos valeurs de pertes et de gain paramétrique nous estimons que la réflectivité des facettes requise pour atteindre le seuil d'oscillation, dans une configuration doublement résonante, est inférieure à 90%. Un premier essai de fabrication de miroirs intégrés a été effectué et le travail dans cette direction se poursuit actuellement au sein du laboratoire MPQ.
CHANVILLARD, LOIC. "Interactions parametriques guidees de grande efficacite : utilisation de l'echange protonique doux sur niobate de lithium inverse periodiquement." Nice, 1999. http://www.theses.fr/1999NICE5362.
Повний текст джерелаPogossian, Souren. "Ondes optiques guidées dans des structures mono et multicouches." Brest, 1994. http://www.theses.fr/1994BRES2002.
Повний текст джерелаMaricot, Sophie. "Transmission d'un signal analogique par voie optique : étude et réalisation de circuits intégrés opto-hyperfréquences." Lille 1, 1992. http://www.theses.fr/1992LIL10069.
Повний текст джерелаКниги з теми "Guide d'onde intégré"
1943-, Nolting H. P., and Ulrich R. 1935-, eds. Integrated optics: Proceedings of the Third European Conference, ECIO'85, Berlin, May 6-8, 1985. Berlin: Springer-Verlag, 1985.
Знайти повний текст джерелаGarmire, E., H. Kogelnik, J. M. Hammer, and T. Tamir. Integrated Optics. Springer London, Limited, 2013.
Знайти повний текст джерела