Thematische Bibliographien / 3D resonators

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Auswahl der wissenschaftlichen Literatur zum Thema „3D resonators“

Autor: Grafiati

Veröffentlicht am 25. Mai 2024

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Zeitschriftenartikel zum Thema "3D resonators"

Ding, Xukai, Jia JIA, Zhengcheng Qin, Zhihu Ruan, Liye Zhao und Hongsheng Li. „A Lumped Mass Model for Circular Micro-Resonators in Coriolis Vibratory Gyroscopes“. Micromachines 10, Nr. 6 (06.06.2019): 378. http://dx.doi.org/10.3390/mi10060378.

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Coriolis vibratory gyroscopes (CVGs) with circular micro-resonators, such as hemispherical, ring, and disk resonators, exhibit excellent performances and have extraordinary potential. This paper discusses a generalized lumped mass model for both 3D and planar circular micro-resonators, establishing the relationship between the modal effective mass, the modal equivalent force, and the point displacement of the resonator. The point displacement description of a continuous circular resonator’s motion is defined from the view of capacitance measurement. The modal effective mass is, consequently, determined by the kinetic and the potential energy of the structure and is computed with numerical simulations. Moreover, the modal equivalent force, which can be theoretically calculated for any configuration of discrete electrodes, is deduced by using the concept of force density and the force distribution function. By utilizing the lumped mass model in this paper, the stiffness softening, the mode tuning, and the quadrature correction of the micro-resonators are investigated in detail. The theoretical model is verified by both the finite element method (FEM) and the experiments.

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Almuhlafi, Ali M., und Omar M. Ramahi. „A Highly Sensitive 3D Resonator Sensor for Fluid Measurement“. Sensors 23, Nr. 14 (17.07.2023): 6453. http://dx.doi.org/10.3390/s23146453.

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Planar sub-wavelength resonators have been used for sensing applications, but different types of resonators have different advantages and disadvantages. The split ring resonator (SRR) has a smaller sensing region and is suitable for microfluidic applications, but the sensitivity can be limited. Meanwhile, the complementary electric-LC resonator (CELCR) has a larger sensing region and higher sensitivity, but the topology cannot be easily designed to reduce the sensing region. In this work, we propose a new design that combines the advantages of both SRR and CELCR by incorporating metallic bars in a trapezoid-shaped resonator (TSR). The trapezoid shape allows for the sensing region to be reduced, while the metallic bars enhance the electric field in the sensing region, resulting in higher sensitivity. Numerical simulations were used to design and evaluate the sensor. For validation, the sensor was fabricated using PCB technology with aluminum bars and tested on dielectric fluids. The results showed that the proposed sensor provides appreciably enhanced sensitivity in comparison to earlier sensors.

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Awerkamp, Parker A., David Hill, Davin Fish, Kimi Wright, Brandt Bashaw, Gregory P. Nordin und Ryan M. Camacho. „Self-Sustaining Water Microdroplet Resonators Using 3D-Printed Microfluidics“. Micromachines 15, Nr. 4 (22.03.2024): 423. http://dx.doi.org/10.3390/mi15040423.

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Microdroplet resonators provide an excellent tool for optical studies of water, but water microdroplets are difficult to maintain outside a carefully controlled environment. We present a method for maintaining a water microdroplet resonator on a 3D-printed hydrophobic surface in an ambient environment. The droplet is maintained through a passive microfluidic system that supplies water to the droplet through a vertical channel at a rate equivalent to its evaporation. In this manner, we are able to create and passively maintain water microdroplet resonators with quality factors as high as 3×108.

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Plazinic, Ana, Milka Potrebic, Dejan Tosic und Milan Plazinic. „Compact microwave triple-mode bandpass filter in planar technology“. Serbian Journal of Electrical Engineering 14, Nr. 2 (2017): 217–28. http://dx.doi.org/10.2298/sjee170117003p.

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This paper introduces a novel microwave planar filter design using triple?mode resonator. In order to achieve the filter size reduction we use the multilayer technology. The structure consists of two dielectric layers separated by a common ground plane. The triple ? mode resonator consists of two dualmode resonators which are placed on different sides of dielectric layers. Electrical connection between the two resonators is realized by using a via-hole. We use the dual-mode resonator with the short circuited central stub. The filter is designed for the center frequency of 1 GHz. In order to reduce the simulation time for the filter design, we propose a new circuit model, because the circuitlevel simulations are significantly faster than three-dimensional electromagnetic (3D EM) simulations. The 3D filter structure is decomposed into domains and each of them is modeled by a microwave network. The results of the 3D EM simulation and circuit-level simulation are in good agreement.

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Chen, Wen, Linwei Zhang, Shangshu Yang, Wenhan Jia, Songsong Zhang, Yuandong Gu, Liang Lou und Guoqiang Wu. „Three-Dimensional Finite Element Analysis and Characterization of Quasi-Surface Acoustic Wave Resonators“. Micromachines 12, Nr. 9 (17.09.2021): 1118. http://dx.doi.org/10.3390/mi12091118.

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In this work, three-dimensional finite element analysis (3D FEA) of quasi-surface acoustic wave (QSAW) resonators with high accuracy is reported. The QSAW resonators consist of simple molybdenum (Mo) interdigitated transducers (IDT) on solidly mounted stacked layers of AlN/Mo/Si. Different to the SAW resonators operating in the piezoelectric substrates, the reported resonators are operating in the QSAW mode, since the IDT-excited Rayleigh waves not only propagate in the thin piezoelectric layer of AlN, but also penetrate the Si substrate. Compared with the commonly used two-dimensional (2D) FEA approach, the 3D FEA method reported in this work shows high accuracy, in terms of the resonant frequency, temperature coefficient of frequency (TCF), effective coupling coefficient (keff2) and frequency response. The fabricated QSAW resonator has demonstrated a keff2 of 0.291%, series resonant frequency of 422.50 MHz, and TCF of −23.418 ppm/°C in the temperature range between 30 °C and 150 °C, for the design of wavelength at 10.4 μm. The measurement results agree well with the simulations. Moreover, the QSAW resonators are more mechanically robust than lamb wave devices and can be integrated with silicon-based film bulk acoustic resonator (FBAR) devices to offer multi-frequency function in a single chip.

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Udaondo, Carlos, Carlos Collado und Jordi Mateu. „Quasi-3D Model for Lateral Resonances on Homogeneous BAW Resonators“. Micromachines 14, Nr. 11 (25.10.2023): 1980. http://dx.doi.org/10.3390/mi14111980.

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Lateral modes are responsible for the in-band spurious resonances that appear on BAW resonators, degrading the in-band filter response. In this work, a fast computational method based on the transmission line matrix (TLM) method is employed to model the lateral resonances of BAW resonators. Using the precomputed dispersion curves of Lamb waves and an equivalent characteristic impedance for the TE1 mode, a network of transmission lines is used to calculate the magnitude of field distributions on the electrodes. These characteristics are specific to the stack layer configuration. The model’s implementation is based on nodal Y matrices, from which particle displacement profiles are coupled to the electric domain via piezoelectric constitutive relations. Consequently, the input impedance of the resonator is obtained. The model exhibits strong agreement with FEM simulations of FBARs and SMRs, and with measurements of several SMRs. The proposed model can provide accurate predictions of resonator input impedance, which is around 200 times faster than conventional FEM.

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Gao, Weirui, Qian Zhang, Jie Sun und Kai Guo. „A novel 3D-printed magnesium alloy phononic crystal with broadband bandgap“. Journal of Applied Physics 133, Nr. 8 (28.02.2023): 085103. http://dx.doi.org/10.1063/5.0135770.

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This study proposes a novel approach to designing and fabricating a phononic crystal with embedded high-density resonators from 3D-printed magnesium alloy. The band structure and vibration suppression characteristics of the proposed structure are investigated using theoretical calculations and finite-element analysis. The bandgaps of the proposed phononic crystal are tuned using their superior structural design by changing the resonators. The effects of resonator mass on vibration suppression performance are also studied. The bandgap position and bandwidth are adjusted by changing the geometric parameters, broadening the application range. In addition, experiments are conducted to verify the bandgap accuracy. This study provides a new idea for constructing a 3D-printed magnesium alloy phononic crystal.

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Zeissler, Katharina. „3D-printed nanoscale resonators“. Nature Electronics 4, Nr. 11 (November 2021): 768. http://dx.doi.org/10.1038/s41928-021-00678-7.

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Costa Baptista, Josué, Roland Fotsing, Jacky Mardjono, Daniel Therriault und Annie Ross. „Acoustic modelling of 3D-printed hybrid materials: a preliminary study“. INTER-NOISE and NOISE-CON Congress and Conference Proceedings 266, Nr. 2 (25.05.2023): 122–33. http://dx.doi.org/10.3397/nc_2023_0018.

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Analytical and finite element (FE) models are developed to predict the sound absorption coefficient of hybrid materials obtained through assembly of folded quarter-length resonators and periodic porous material. The analytical model uses the sum of the acoustic admittances. The acoustic admittance of resonators is simulated with Stinson's model. Johnson-Champoux-Allard-Lafarge (JCAL) model and transfer matrix method (TMM) are used to calculate the acoustic admittance of 1, 2 and 4-layers of porous materials with different geometric parameters. The FE model is implemented using the COMSOL Multiphysics. The helical tubes are simulated using the visco-thermal acoustic module while the porous layers are simulated with JCAL poro-acoustic module. 30-mm thick samples of hybrid materials are produced via additive manufacturing (AM). Normal incident sound absorption coefficient of the hybrid materials is measured using an impedance tube. The experimental and simulated sound absorption coefficients are compared. The impact of the structure parameters (resonator diameter and length as well as number of porous layers) on the sound absorption is assessed. The hybrid materials present low frequency and broadband sound absorption. Higher broadband sound absorption is obtained with 4-layers of porous material. Low frequency absorption ( 1000 Hz) is achieved with long folded resonators (L 100 mm).

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Velasco, Jaime, Ignacio Parellada-Serrano und Carlos Molero. „Fully Metallic Reflectarray for the Ku-Band Based on a 3D Architecture“. Electronics 10, Nr. 21 (29.10.2021): 2648. http://dx.doi.org/10.3390/electronics10212648.

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This document presents the design and manufacture of a reflectarray (RA) antenna for the Ku-band that is based on a fully-metallic 3D architecture. The reflectarray unit cell is formed by a square-shaped waveguide section ending in a short circuit, which is the reflectarray back ground plane. Each cell has the ability of configuring the phase of its own reflected field by means of resonators perforated on the walls of the cell waveguide section. The resonator-based waveguide cell introduces the 3D character to the design. The geometry of the resonators and the size variation introduces the phase behavior of each cell, thus, conforming the radiation pattern of the reflectarray. This design explores the potential of phase value truncation (six states and two states) and demonstrates that proper pattern results can be obtained with this phase truncation.

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Dissertationen zum Thema "3D resonators"

Larson, Kevin Eugene. „Zero-Energy Tuning of Silicon Microring Resonators Using 3D Printed Microfluidics and Two-Photon Absorption Induced Photoelectrochemical Etching of Silicon“. BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/9086.

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This thesis presents a novel method of modulating silicon photonic circuits using 3D printed microfluidic devices. The fluids that pass through the microfluidic device interact directly with the silicon waveguides. This method changes the refractive index of the waveguide cladding, thus changing the effective index of the system. Through using this technique we demonstrate the shift in resonant wavelength by a full free spectral range (FSR) by increasing the concentration of the salt water in the microfluidic device from 0% to 10%. On a 60 Î¼m microring resonator, this equals a resonant wavelength shift of 1.514 nm when the index of the cladding changes by 0.017 refractive index units (RIU), or at a rate of 89.05 nm/RIU. These results are confirmed by simulations that use both analytical and numerical methods. This thesis also outlines the development of a process that uses two-photon absorption(TPA) in silicon to produce a photoelectrochemical (PEC) etching effect. TPA induces free carriers in silicon that then interact with the Hydroflouric Acid (HF) solution that the wafer is submerged in. This interaction removes silicon away from the wafer, which is the etching observed in our experiments. Non-line-of-sight PEC etching is demonstrated. The optical assemblies used in these experiments are presented, as are several of the results of the etching experiments.

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ISLAM, MOHAMMAD SAIFUL. „Reconfigurable RF and Wireless Architectures Using Ultra-Stable Micro- and Nano-Electromechanical Oscillators: Emerging Devices, Circuits, and Systems“. Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1582167898995604.

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Modaresialam-Bochet, Mehrnaz. „Fabrication of dielectric nanostructures by nano imprint lithography and sol-gel chemistry for optical applications“. Electronic Thesis or Diss., Aix-Marseille, 2021. http://www.theses.fr/2021AIXM0345.

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Le but de cette thèse est de développer des méthodes d’élaboration de métasurfaces nanostructurées par combinaison de la chimie sol-gel et de la lithographie par nano impression (soft-NIL). Celle-ci présente notamment des intérêts d’ordres scientifiques et technologiques. En outre, elle entre dans la tendance générale du développement des processus rapide à faibles coûts utilisant des matériaux biocompatibles et non toxiques. Dans un premier temps, nous présenterons l'élaboration de nouveaux revêtements anti-reflets constitués de silice hydrophobe (modifiée méthyle) avec différentes nanostructures (piliers et trous). Ces nouveaux revêtements permettent de réduire la réflexion dans un intervalle spectral large tout en conservant une large tolérance angulaire à la lumière incidente. D’autre part, ces nanomatériaux présentent une stabilité chimique, thermique et mécanique améliorée par rapport à l’état de l’art. Par la suite, un nouveau système de couche sensible composé d’une méta-surface de TiO2 encapsulée dans une matrice hybride microporeuse pour capteur basée sur la transduction optique, et présentant une sensibilité spectrale de 4470 nm/RIU a été développé. Ce dernier a été exploiter pour sonder la présence de COV dans l’air avec une sélectivité partielle et une sensibilité de 0.5×10-3 R/ppm. Finalement, le savoir-faire développé a ensuite été mis à contribution pour l’élaboration de réseaux de méta-surfaces par empilements successifs de matériaux diélectriques SiO2 poreuse et TiO2 dense nano-imprimés. Ce dernier travail est précurseur à la fabrication de méta-matériaux 3D par procédé sol-gel
The purpose of this thesis is to develop methods to elaborate nanostructured metasurfaces by combining sol-gel chemistry and nano imprint lithography (soft-NIL), which are of relevant scientific and technological interest as they inscribe themselves in the general trend of developing affordable and time-saving processes, using biocompatible and non-toxic materials. Firstly, we showcase the elaboration of new efficient antireflection coatings made of water-repellent methylated silica nipple-dimple nano-architectures (pillars and holes). The interest of these results relies on the possibility to drastically reduce reflection in a broad spectral interval and within a broad acceptance angle of the incident light, rendering them adapted to photovoltaic, glass covers, laser windows, and much more. Furthermore, these nano-materials feature a high chemical, thermal and mechanical stability. Secondly, a highly sensitive optical gas sensor was elaborated based on TiO2 nanopatterns embedded in a thin microporous hybrid-SiO2 sensitive coating. The reflectivity of the layer has then been measured in the visible range with increasing vapor pressure. The measured sensing performances are sensitivity S up to 4500 nm/RIU (0.2 nm/ppm), reflection intensity changes up to R* = 17 (0.55×10-3 R/ppm), FOM up to 12, with a Q-Factor of 4 for a specific wavelength, which is compatible with sub-ppm gas detection by simple specular reflection. Finally, a novel generation of dielectric 3D stack nanostructured patterns (e.g. TiO2 pillars - mesoporous SiO2 - TiO2 pillars) was developed as an innovative optical system that has never been experimentally studied before

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Lafargue, Clément. „Dynamique non-linéaire dans les microcavités laser tridimensionnelles à base de polymères : aspects physiques et technologiques“. Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2013. http://tel.archives-ouvertes.fr/tel-00920272.

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Cette thèse est consacrée à l'étude fondamentale et au développement de micro-sources lasers en matériaux organiques, susceptibles de débouchés dans les technologies de l'information et les biotechnologies. Nous avons exploré l'aspect tridimensionnel (3D) de ces lasers, tant en termes de fabrication que de caractérisation. Concernant la fabrication, nous avons fait évoluer la géométrie des microlasers, auparavant quasi-bidimensionnelle (2D, issue de films fins) vers une géométrie 3D (comme des cubes). Des procédés de lithographie UV épaisse ou d'écriture directe au laser par photo-polymérisation à 2 photons ont été adaptés pour réaliser des formes sur mesure de micro-résonateurs optiques incluant un colorant. Afin d'étudier l'émission très anisotrope de ces lasers, nous avons conçu et développé un outil original, appelé scanner à angle solide (SAS), permettant de collecter l'émission d'un microlaser dans toutes les directions du demi-espace qui le surplombe, avec une grande précision. Le SAS a permis de constater que les microlasers 2D émettent principalement hors-plan. Un modèle a été développé pour expliquer cet effet et émettre des prédictions. D'autre part, différentes formes de microlasers 2D ont été analysées, à partir de leurs directions et spectres d'émission, grâce au formalisme semi-classique des orbites périodiques. En particulier, une orbite diffractive a été observée dans les triangles, ce qui ouvre la voie à une étude systématique de la diffraction par un coin diélectrique. Nous apportons également une explication à la directionalité de l'émission par des microlasers carrés. Pour finir, les premières caractérisations 3D de micro-lasers 3D ont été réalisées.

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Wang, Shu. „Experimental Investigation of New Inductor Topologies“. University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1460733373.

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Marchives, Yoann. „Development of 3D filter made by stereolithography“. Thesis, Limoges, 2016. http://www.theses.fr/2016LIMO0073/document.

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Les télécommunications sont devenus indispensables dans notre monde actuel. De plus, le volume des données échangées ne cesse de croître. En effet, nous pouvons transmettre nos photos, nos vidéos au monde entier. Nonobstant, nous ne voulons pas attendre pour les avoir, ce qui exige un débit de données très important et par conséquent des signaux avec des bandes passantes plus larges. Les satellites de télécommunications doivent donc s’adapter, c'est pourquoi nous proposons dans ces travaux la recherche de filtre à large bande avec une recherche de compacité et de faibles pertes. Nous nous sommes intéressés à l'utilisation de matériaux céramiques qui permettent d'obtenir de bonnes performances vis à vis de nos besoins. Notre travail est aussi rendu possible par le développement de procédés de fabrication additifs, comme par exemple la stéréolithographie, qui va nous permettre de nous affranchir fortement de règles de dessin contraignantes que nous pourrions avoir en utilisant des procédés classiques. Nous avons développé des filtres avec de larges bandes passantes autour de 4GHz. Une première étude nous a permis de rechercher des concepts qui permettent d'obtenir de forts couplages, conditions sine qua non pour réaliser ces filtres. Plusieurs concepts sont présentés ainsi que leur fabrication et leur mesures. Nous avons ainsi démontré expérimentalement que les concepts proposés, à base de pièces monoblocs céramiques, sont capables de produire des filtres à bandes passantes supérieures à 60 % (voire même 110 % pour une version améliorée)
Every day, the data exchanges increase thanks to the new technologies. We can keep our files, our pictures, our videos online to have an access anywhere on the planet (for now). In this way, the data output of the telecommunication systems has to be increased in order to satisfy the more and more demanding users. One way to allow this is to increase the bandwidths of the different signals, making possible to transmit more data at the same time. In this work, we will develop wide bandpass filters dedicated to space telecommunications. For that purpose, we need them to be compact, with low insertion loss and a limited number of parts to assemble. Consequently, we are interested to use resonators made with ceramic materials that permits to reach such properties. Moreover, these materials are compatible with stereolithography, an additive manufacturing process. Such technology is here very useful for our purpose since its design freedom allows the creation of almost all kind of geometries. To realize such wide bandpass filters, we need strong couplings between the different resonators and also for the accesses, so we will present our studies focused on reaching these specific objectives. Then, we will present different designs of wide bandpass filter around 4GHz. After different generation of ceramic based components, we are be able to experimentally create a 60% bandwidth (even 100% for our last version) very compact bandpass filter filling the objectives of this PhD thesis

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Sobeshchuk, Nina. „Microlasers based on polymer composites“. Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLN031/document.

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L'objectif de la thèse est la fabrication et caractérisation de microlasers 3D à base de polymères dopés par des colorants organiques et des nanoparticules d'erbium et Ytterbium. Au début, nous avons étudié des structures polymères avec de très bons facteurs d'aspect, ainsi que le déplacement de nanoparticules lors de l'exposition à un éclairement périodique. La réalisation majeure de cette thèse est l'obtention de microlasers 3D par lithographie UV. Ensuite nous avons comparé les seuils lasers de ces structures pour différentes méthodes de fabrication. Dans des micro-cubes, nous avons identifié des orbites périodiques planes en forme de carré. L'analyse des orbites périodiques dans des microlasers Fabry-Perot 3D a montré que leur forme dépend du colorant, de la nature du substrat et de la taille de la structure (largeur et épaisseur).La dernière partie de ce travail consiste en la synthèse de nanoparticules d'oxyde d'erbium et ytterbium à basse température et en milieu anhydre. Ces nano-particules ont ensuite été introduites dans des composites à base de polymères qui ont donné lieu à la fabrication de micro-lasers 3D et à leur caractérisation
The aim of the thesis is the fabrication and optical characterization of three-dimensional organic microlasers based on organic dyes and luminescent erbium/ytterbium nanoparticles.At the beginning, we considered submicron polymer structures with high aspect ratio, as well as the phenomenon of redistribution of nanoparticles in the volume of the composite during the exposure by a periodic light field pattern.The main part of the work is devoted to obtaining three-dimensional polymer microlasers by UV-lithography. Comparison of the lasing threshold for microcavities obtained by different methods was performed. Periodic orbits in cuboid microlasers with square cross-section were identified. Analysis of possible periodic orbits in microlasers Fabry-Perot showed that the shape of the orbit depends on the dye, the type of substrate and the size of the microlaser (width, height).The last part of the work contains a study of low-temperature synthesis of luminescent nanoparticles of erbium and ytterbium oxides in a anhydrous medium, and polymer composites based on them. Three dimensional organic microlasers doped by these luminescent nanoparticles were obtained and investigated

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Ross, Anthony J. III. „Laser Machining and Near Field Microwave Microscopy of Silver Inks for 3D Printable RF Devices“. Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6944.

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3D printable materials for RF devices need improvement in order to satisfy the demand for higher frequency and lower loss performance. Characterization of materials that have shown improvements of conductor conductivity have been performed. By using a laser machining technique the loss of a 3D printed 2.45 GHz microstrip Square Open Loop Resonator (SOLR) bandpass filter has been shown to improve by 2.1dB, along with an increase in bandwidth from 10% to 12.7% when compared to a SOLR filter that has not been laser machined. Both laser machined and microwaved silver inks have been mapped for conductivity using a Near Field Microwave Microscope (NFMM) and have shown improvement of conductivity compared to inks that have been cured using standard methods.

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Channoufi, Malèk. „Modélisation et optimisation de la couche optique de réseaux sur puce“. Thesis, Cergy-Pontoise, 2014. http://www.theses.fr/2014CERG0692/document.

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Dans le cadre du développement de SoC (Systems-on-Chip) complexes, l'interconnexion des différent IP matériels (Intellectual Property), très distants à l'échelle d'un circuit intégré (typiquement quelques centimètres) et devant s'échanger des volumes de données parfois important, incite, pour des raisons de débit, de latence, de pertes et de consommation, l'adoption d'une méthodologie de conception adéquate pour réaliser des systèmes de plus en plus flexibles. Afin de répondre à ces nouvelles difficultés de conception, de nombreuses recherches ont fait émerger le concept de réseau optique sur puce (Optical Network-on-Chip ou ONoC).Dans cette thèse une étude détaillée d'une nouvelle architecture d'un réseau optique sur puce a été faite. La conception de ce réseau repose sur 2 paradigmes d'interconnexion: concevoir l'architecture dans le cadre d'une puce en 3D et l'empilement en plusieurs niveaux des guides d'onde optique dans la couche réseau optique sur puce. L'élément clef de cette architecture est un microrésonateur à plusieurs niveaux de guide d'onde (Si/SiO2). De ce fait, une étude détaillée sur le comportement optique de ce composant avec des modèles mathématiques et des simulations FEM a été faite dans le but d'optimiser la perte de puissance optique, le nombre des niveaux des guides d'onde empilés et la consommation d'énergie.Après avoir détaillé le fonctionnement de réseau multi-niveaux sur puce proposé "OMNoC", son protocole de routage a été étudié avec le simulateur NS-2, puis optimisé, rédiger et étudier avec C++ et l'outil Parsec Benchmark. Enfin et en tenant compte des études faites sur le comportement optique des guides d'onde et le protocole de routage, une étude desperformances comparatives avec des autres architectures a été élaborée montrant ainsi les avantages et les limites d'une telle méthodologie d'interconnexion
The developing of complex System on Chip "SoC" interconnecting different cores IP distant in micrometer chip scale, needs important data bandwidth , low latency and the best compromise between optical power loss and crosstalk. According to that, finding new methodology design is necessary to cope to those challenges.Using centric communication becomes the mainly solution to improve communication performance in system on chip and recently many researches are focusing on Optical Network on Chip 'ONoC'.In this thesis, a novel architecture of an optical network on chip is proposed, this architecture is reposed on 2 design paradigms: ONoC based 3D chip and multilevel waveguides based ONoC. The key element of this architecture is the multilevel microresonator (Si/SiO2) which is the optical switch of the network. Optical wave behavior in different geometries have been studied using FEM method in order to find compromise between optical power loss and crosstalk. Operation mode of this ONoC called "OMNoC" is explained, routing protocol is studied using NS-2 simulator too, then optimized and developed using C++ and Benchmark tool. After that and by using FEM results and adopted routing strategy, OMNoC performances are studied and compared with other network architectures proposed in ONoC literature. In conclusion and according to performances analysis and comparisons, OMNoC could be considered as a promising network architecture which offer scalability and give a compromise between optical power loss and crosstalk

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Haque, Rubaiyet Iftekharul. „Design et développement d'un capteur acoustique imprimé“. Thesis, Saint-Etienne, EMSE, 2015. http://www.theses.fr/2015EMSE0794/document.

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L’objectif de ce travail était de concevoir et réaliser par impression un capteur acoustique capacitif résonant bas coût. Il s’inscrit dans le cadre d’un projet collaboratif de recherche intitulé « Spinnaker », défini par la société Tagsys RFID qui souhaite intégrer ce capteur afin d’améliorer la géolocalisation des étiquettes RFID. Ce travail a débuté par la conception et l’optimisation du design en utilisant la simulation par éléments finis (COMSOL) ainsi que des plans d’expériences (DOE : Design of Experiment). Cette première étape a permis de déterminer les paramètres optimaux et démontrer que les performances obtenues étaient conformes aux spécifications. Nous avons ensuite développé les différentes briques technologiques nécessaires à la réalisation des prototypes en utilisant conjointement l’impression 2D par inkjet et l’impression 3D. Nous avons vérifié la fonctionnalité de ces capteurs à l’aide de mesures électriques capacitives et acoustiques par vibrométrie laser. Nous avons démontré la sélectivité en fréquence des capteurs réalisés et comparé les résultats expérimentaux à ceux obtenus par simulation. Enfin, nous avons enfin exploré la « voie piezoélectrique » qui nous semble être une alternative intéressante au principe capacitif. En l’absence d’encre piézoélectrique commerciale imprimable par jet de matière, nous avons formulé une encre imprimable à base du co-polymère PVDF-TrFE et démontré le caractère piézoélectrique des couches imprimées. Les résultats sont prometteurs mais des améliorations doivent encore être apportées à cette encre et au procédé d’impression avant de pouvoir fabriquer des premiers prototypes
The objective of this work was to design and fabricate a low cost resonant capacitive acoustic sensor using printing techniques. It falls within the frame of a collaborative research project named “Spinnaker”, set up by TAGSYS RFID, a French company, which has planned to integrate this sensor to improve the geolocalization of their RFID tags. This work started with the design and optimization of the sensor using finite element modeling (COMSOL) and design of experiments (DOE). This first step has enabled the identification of the optimum set of parameters and demonstrated that the output responses were in accordance with the specifications. Then, we have developed the different technological building blocks required for the fabrication of the prototypes using jointly the 2D inkjet printing technique and 3D printing method. The functionality of the sensors has been characterized using both capacitive and acoustic measurements using laser Doppler vibrometer. Experimental results showed that sensitivity and selectivity were within the specifications and in good agreement with the modeling results. Finally, we investigated the piezoelectric approach which could be an interesting option to the capacitive one. Since no inkjet printable piezoelectric ink is commercially available, stable inkjet printable polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE) ink has been developed. PVDF-TrFE layers were then successfully printed and characterized. The results were quite promising, however further improvements of the ink and printing process are required before stepping towards piezoelectric based device fabrication

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Bücher zum Thema "3D resonators"

International, Workshop on Laser and Fiber-optical Networks Modeling (3rd 2001 Kharkiv Ukraine). LFNM'2001: Proceedings of 3d International Workshop on Laser and Fiber-optical Networks Modeling : Kharkiv State University of Radio Electronics : Ukraine, May 23, 2000. Piscataway, New Jersey: IEEE, 2001.

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Buchteile zum Thema "3D resonators"

Shoman, Hossam, und Marcus S. Dahlem. „Cantilever Design for Tunable WDM Filters Based on Silicon Microring Resonators“. In 3D Stacked Chips, 255–81. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-20481-9_14.

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Basu, Prasanta Kumar, Bratati Mukhopadhyay und Rikmantra Basu. „Optical microcavities“. In Semiconductor Nanophotonics, 292–327. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780198784692.003.0010.

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Abstract Optical cavities or resonators having dimensions of the order of cube of the wavelength, are introduced with the definitions of DOM, mode volume, quality factor, finesse, and loss mechanisms in general. The simplest resonator structures, the FP resonator, Bragg gratings and mirrors, and ring resonators and their characteristics are presented next. Resonators working with whispering gallery modes, different structures used, and both ray-optic and electromagnetic theories to understand their operations are also discussed. The formation of photonic band gap in photonic crystal is illustrated by solving wave equation in a 1D periodic structure. The concepts are extended to 2D and 3D periodic structures, giving representative structures, typical dispersion relations, examples of photonic band gaps, and the methods to form waveguides. The micropillar structure is discussed in detail. Finally, a summary of different resonator structures, method of light confinement, values of Q, and sources are given.

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Nittala, Pavani Vamsi, Prosenjit Sen, K. N. Bhat und M. M. Nayak. „3D packaging for the integration of heterogeneous systems“. In MEMS Resonator Filters, 323–70. Institution of Engineering and Technology, 2020. http://dx.doi.org/10.1049/pbcs065e_ch10.

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Konferenzberichte zum Thema "3D resonators"

Yang, Shuo, Daniel Homa, Gary Pickrell und Anbo Wang. „Flexible Integration of 3D Optical Resonators inside Fibers“. In Optical Fiber Sensors. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/ofs.2022.f2.4.

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We report a flexible method to integrate 3D optical resonators inside optical fibers. A prism-coupled cylindrical resonator and a free-space-coupled asymmetric resonator cavity are demonstrated in optical fibers with a quality factor up to 3.53×105.

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Liu, Jiewen, Joshua Jaekel, Dharamdeo Ramdani, Nabeel Khan, David S. K. Ting und Mohammed Jalal Ahamed. „Effect of Geometric and Material Properties on Thermoelastic Damping (TED) of 3D Hemispherical Inertial Resonator“. In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66277.

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High quality factor (Q-factor) is a crucial parameter for the development of precision inertial resonators. Q-factor indicates efficiency of a resonator in retaining its energy during oscillations. This paper explores the effects of different design parameters on Q-factor of a 3D hemispherical (wine-glass) inertial resonator. Thermo-elastic damping (TED) loss mechanisms in a 3D non-inverted wine-glass (hemispherical) shell resonator is systematically investigated and presented in this paper. We investigated TED loss resulting from the effects of hemisphere geometric parameters (such as thickness, height, and radius), mass imbalance, thickness non-uniformity, and edge defects. We used glassblowing to fabricate hemispherical 3D shell resonators. The results presented in this paper can facilitate selecting efficient geometric and material properties for achieving desired Q-factor in 3D inertial resonators. Enhancing the Q-factor in MEMS based 3D resonators can further enable the development of high precision resonators and gyroscopes.

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Vukovic, A., P. Sewell, T. M. Benson und A. Nosich. „Modelling rotationally symmetric 3D resonators“. In 2011 ICO International Conference on Information Photonics (IP). IEEE, 2011. http://dx.doi.org/10.1109/ico-ip.2011.5953807.

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Vukovic, Ana, Phillip Sewell und Trevor Benson. „Advances in Modelling 3D Resonators“. In Integrated Photonics Research, Silicon and Nanophotonics. Washington, D.C.: OSA, 2010. http://dx.doi.org/10.1364/iprsn.2010.imd1.

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Araque, J. L., und J. D. Baena. „Duality for 3D metamaterial resonators?“ In 2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS). IEEE, 2014. http://dx.doi.org/10.1109/metamaterials.2014.6948580.

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Leger, James R., W. Minster Kunkel, Ali Ghoreyshi, Glen Douglass, Simon Gross und Michael J. Withford. „Gradient-index beam shapers: fabricated devices and 3D design“. In Laser Resonators, Microresonators, and Beam Control XX, herausgegeben von Alexis V. Kudryashov, Alan H. Paxton und Vladimir S. Ilchenko. SPIE, 2018. http://dx.doi.org/10.1117/12.2290909.

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Tavassoli, V., B. Hamelin und F. Ayazi. „Substrate-decoupled 3D micro-shell resonators“. In 2016 IEEE SENSORS. IEEE, 2016. http://dx.doi.org/10.1109/icsens.2016.7808779.

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Benson, T. M., A. Vukovic, J. G. Wykes, A. Al-Jarro und P. Sewell. „Numerical simulations of 3D micro-resonators“. In 2008 10th Anniversary International Conference on Transparent Optical Networks (ICTON 2008). IEEE, 2008. http://dx.doi.org/10.1109/icton.2008.4598731.

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Giraud, Sylvain, Stephane Bila, Michel Aubourg und Dominique Cros. „Bulk acoustic wave resonators 3D simulation“. In 2007 IEEE International Frequency Control Symposium Joint with the 21st European Frequency and Time Forum. IEEE, 2007. http://dx.doi.org/10.1109/freq.2007.4319258.

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Giraud, Sylvain, Stephane Bila, Michel Aubourg und Dominique Cros. „Bulk Acoustic Wave Resonators 3D Simulation“. In 2007 International Symposium on Signals, Systems and Electronics. IEEE, 2007. http://dx.doi.org/10.1109/issse.2007.4294479.

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