Relevant bibliographies by topics / FDTD simulations

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'FDTD simulations'

Author: Grafiati
Published: 4 June 2021
Last updated: 27 April 2022

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Journal articles on the topic "FDTD simulations"

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Ramadan, Omar. "Unified integro-differential equation for efficient dispersive FDTD simulations." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 36, no. 4 (July 3, 2017): 1089–105. http://dx.doi.org/10.1108/compel-10-2016-0471.

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Purpose The purpose of this paper is to derive a unified formulation for incorporating different dispersive models into the explicit and implicit finite difference time domain (FDTD) simulations. Design/methodology/approach In this paper, dispersive integro-differential equation (IDE) FDTD formulation is presented. The resultant IDE is written in the discrete time domain by applying the trapezoidal recursive convolution and central finite differences schemes. In addition, unconditionally stable implicit split-step (SS) FDTD implementation is also discussed. Findings It is found that the time step stability limit of the explicit IDE-FDTD formulation maintains the conventional Courant–Friedrichs–Lewy (CFL) constraint but with additional stability limits related to the dispersive model parameters. In addition, the CFL stability limit can be removed by incorporating the implicit SS scheme into the IDE-FDTD formulation, but this is traded for degradation in the accuracy of the formulation. Research limitations/implications The stability of the explicit FDTD scheme is bounded not only by the CFL limit but also by additional condition related to the dispersive material parameters. In addition, it is observed that implicit JE-IDE FDTD implementation decreases as the time step exceeds the CFL limit. Practical implications Based on the presented formulation, a single dispersive FDTD code can be written for implementing different dispersive models such as Debye, Drude, Lorentz, critical point and the quadratic complex rational function. Originality/value The proposed formulation not only unifies the FDTD implementation of the frequently used dispersive models with the minimal storage requirements but also can be incorporated with the implicit SS scheme to remove the CFL time step stability constraint.
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Okada, Naoki, James B. Cole, Shigeki Yamada, Kensuke Ogawa, and Yoshifumi Katayama. "Nonstandard FDTD Simulation-Based Design of CROW Wavelength Splitters." Advances in Optical Technologies 2011 (June 1, 2011): 1–6. http://dx.doi.org/10.1155/2011/265702.

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The finite-difference time-domain (FDTD) algorithm has been used in simulation-based designs of many optical devices, but it fails to reproduce high-Q whispering gallery modes (WGMs). On the other hand, the nonstandard (NS) FDTD algorithm can accurately compute WGMs and can be used to make simulation-based designs of WGM devices. Wavelength splitters using the coupled resonator optical waveguides (CROWs) based on WGM couplings have recently attracted attention because they are potentially ultracompact. In this paper, we design a CROW wavelength splitter using NS FDTD simulations and demonstrate high interchannel extinction ratios of over 20 dB.
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Kast, Joshua, and Atef Elsherbeni. "Finite-Difference Time-Domain Simulation of Arbitrary Impedance using One Port S-Parameter." Applied Computational Electromagnetics Society 35, no. 9 (November 4, 2020): 985–91. http://dx.doi.org/10.47037/2020.aces.j.350902.

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Many modern radio-frequency devices comprise both lumped-element components and complex geometries. Simulation of such a device requires modeling the electromagnetic interactions with both geometric features and lumped components. We present a method for including arbitrary lumped-element components into finite-difference time-domain (FDTD) simulations. The lumped-element components, which are described by their scattering parameters, are modeled in the Yee grid as dependent voltage sources. The mathematical formulation is described, along with its implementation into a FDTD simulator. For verification, simulation results of resistive, capacitive, and inductive loads are presented, and are compared to simulation results from previous lumped-element FDTD methods. This represents a first-step in modeling multiport networks described by their scattering parameters.
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Adão, Ricardo M. R., Manuel Caño-Garcia, Christian Maibohm, Bruno Romeira, and Jana B. Nieder. "Oscillator Finite-Difference Time-Domain (O-FDTD) electric field propagation model: integrated photonics and networks." EPJ Web of Conferences 255 (2021): 01005. http://dx.doi.org/10.1051/epjconf/202125501005.

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The recently developed Lorentz Oscillator Model-inspired Oscillator Finite-Difference Time-Domain (O-FDTD) is one of the simplest FDTD models ever proposed, using a single field equation for electric field propagation. We demonstrate its versatility on various scales and benchmark its simulation performance against theory, conventional FDTD simulations, and experimental observations. The model’s broad applicability is demonstrated for (but not limited to) three contrasting realms: integrated photonics components on the nano- and micrometer scale, city-wide propagating radiofrequency signals reaching into the hundreds of meters scale, and for the first time, in support of 3D optical waveguide design that may play a key role in neuromorphic photonic computational devices.
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Nicolini, Julio L., and José Ricardo Bergmann. "Finite-Difference Time Domain Techniques Applied to Electromagnetic Wave Interactions with Inhomogeneous Plasma Structures." International Journal of Antennas and Propagation 2018 (2018): 1–20. http://dx.doi.org/10.1155/2018/3476462.

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Motivated by the emerging field of plasma antennas, electromagnetic wave propagation in and scattering by inhomogeneous plasma structures are studied through finite-difference time domain (FDTD) techniques. These techniques have been widely used in the past to study propagation near or through the ionosphere, and their extension to plasma devices such as antenna elements is a natural development. Simulation results in this work are validated with comparisons to solutions obtained by eigenfunction expansion techniques well supported by the literature and are shown to have an excellent agreement. The advantages of using FDTD simulations for this type of investigation are also outlined; in particular, FDTD simulations allow for field solutions to be developed at lower computational cost and greater resolution than equivalent eigenfunction methods for inhomogeneous plasmas and are applicable to arbitrary plasma properties such as spatially or time-varying inhomogeneities and collision frequencies, as well as allowing transient effects to be studied as the field solutions are obtained in the time domain.
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Fan, Yang. "FDTD Modelling of Triangular Gold Nanoparticle Pairs." Applied Mechanics and Materials 703 (December 2014): 220–23. http://dx.doi.org/10.4028/www.scientific.net/amm.703.220.

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The optical properties of triangular gold nanoparticle pairs are investigated by numerical simulations using Finite-difference time-domain (FDTD) method. The simulation results show the significant red shifts of plasmon resonances as the size of nanoparticle is increased. The large electric field enhancement is also verified by calculating the local electric field distributions.
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Le, Madison, Mohammed Hadi, and Atef Elsherbeni. "Quantifying Sub-gridding Errors in Standard and Hybrid Higher Order 2D FDTD Simulations." Applied Computational Electromagnetics Society 35, no. 11 (February 5, 2021): 1428–29. http://dx.doi.org/10.47037/2020.aces.j.351183.

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Sub-gridding errors for a 2D Finite-Difference Time-Domain (FDTD) simulation are compared for both the standard FDTD and Hybrid higher order FDTD cases. Subgridding contrast ratios of 1:3, 1:9, 1:15, and 1:27 are considered and analyzed. A correlation is seen between the increase of contrast ratio with the increase of sub-gridding errors for both standard and hybrid cases. However, a trend of errors reduction when using hybrid formulations over standard formulations is apparent for each contrast ratio.
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Vahidzadeh, Ehsan, and Karthik Shankar. "Artificial Neural Network-Based Prediction of the Optical Properties of Spherical Core–Shell Plasmonic Metastructures." Nanomaterials 11, no. 3 (March 4, 2021): 633. http://dx.doi.org/10.3390/nano11030633.

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The substitution of time- and labor-intensive empirical research as well as slow finite difference time domain (FDTD) simulations with revolutionary techniques such as artificial neural network (ANN)-based predictive modeling is the next trend in the field of nanophotonics. In this work, we demonstrated that neural networks with proper architectures can rapidly predict the far-field optical response of core–shell plasmonic metastructures. The results obtained with artificial neural networks are comparable with FDTD simulations in accuracy but the speed of obtaining them is between 100–1000 times faster than FDTD simulations. Further, we have proven that ANNs does not have problems associated with FDTD simulations such as dependency of the speed of convergence on the size of the structure. The other trend in photonics is the inverse design problem, where the far-field optical response of a spherical core–shell metastructure can be linked to the design parameters such as type of the material(s), core radius, and shell thickness using a neural network. The findings of this paper provide evidence that machine learning (ML) techniques such as artificial neural networks can potentially replace time-consuming finite domain methods in the future.
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Becker, A., and V. Hansen. "A hybrid method combining the Time-Domain Method of Moments, the Time-Domain Uniform Theory of Diffraction and the FDTD." Advances in Radio Science 5 (June 12, 2007): 107–13. http://dx.doi.org/10.5194/ars-5-107-2007.

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Abstract. In this paper a hybrid method combining the Time-Domain Method of Moments (TD-MoM), the Time-Domain Uniform Theory of Diffraction (TD-UTD) and the Finite-Difference Time-Domain Method (FDTD) is presented. When applying this new hybrid method, thin-wire antennas are modeled with the TD-MoM, inhomogeneous bodies are modelled with the FDTD and large perfectly conducting plates are modelled with the TD-UTD. All inhomogeneous bodies are enclosed in a so-called FDTD-volume and the thin-wire antennas can be embedded into this volume or can lie outside. The latter avoids the simulation of white space between antennas and inhomogeneous bodies. If the antennas are positioned into the FDTD-volume, their discretization does not need to agree with the grid of the FDTD. By using the TD-UTD large perfectly conducting plates can be considered efficiently in the solution-procedure. Thus this hybrid method allows time-domain simulations of problems including very different classes of objects, applying the respective most appropriate numerical techniques to every object.
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Jiang, Shugang, Yu Zhang, Zhongchao Lin, and Xunwang Zhao. "An Optimized Parallel FDTD Topology for Challenging Electromagnetic Simulations on Supercomputers." International Journal of Antennas and Propagation 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/690510.

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It may not be a challenge to run a Finite-Difference Time-Domain (FDTD) code for electromagnetic simulations on a supercomputer with more than 10 thousands of CPU cores; however, to make FDTD code work with the highest efficiency is a challenge. In this paper, the performance of parallel FDTD is optimized through MPI (message passing interface) virtual topology, based on which a communication model is established. The general rules of optimal topology are presented according to the model. The performance of the method is tested and analyzed on three high performance computing platforms with different architectures in China. Simulations including an airplane with a 700-wavelength wingspan, and a complex microstrip antenna array with nearly 2000 elements are performed very efficiently using a maximum of 10240 CPU cores.
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Dissertations / Theses on the topic "FDTD simulations"

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Hågenvik, Hans Olaf. "FDTD simulations of novel gain media." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for materialteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-26124.

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Fourier-Laplace analysis of gain media predicts the existence of novel types of media. In particular it predicts the existence of media refracting positively and negatively at the same time, so-called simultaneous refraction. The effect is analytically derived through deformation of the inverse Fourier-Laplace integration surface. The requirements, and possible problems, of such media are discussed. It is argued that this is a 2-dimensional effect, meaning side waves must be present for the effect to occur. For a medium to be simultaneous refracting it must have gain, and it is discussed how this gain can be minimized.A Finite Difference Time Domain (FDTD) method for dispersive Lorentz media was implemented in MATLAB. The program solves Maxwells equations numerically in the time domain, where the real physics happens. If the Fourier-Laplace theory predicts novel optical properties for a given $\epsmu$, the program can thus be used to simulate the actual response from a medium with permittivity and permeability $\epsilon(\omega)$ and $\mu(\omega)$. It can therefore be used to independently verify (or disprove) the results obtained using Fourier-Laplace theory.The FDTD-program was used to simulate various types of novel media. Simulation results showing the occurrence evanescent gain are presented. For media with large gain the program fails, due to artificial reflections caused by numerical errors are being amplified. The reflections were found to originate from the numerical precision of MATLAB, and it is therefore not much that can be done to prevent them from occurring.Infinite or semi-infinite gain media may involve instabilities, as the signal may propagate infinitely long. There are two types of instabilities, convective and absolute. A \emph{convective instability} is convected away. An \emph{absolute instability} grows with time, even at a fixed point in space. The deformation theory is used to explain the occurrence of such instabilities. Wave propagation in passive media are usually considered in the so called monochromatic and plane wave limits, meaning only a single frequency $\omegaobs$ and plane wave component $K_x$ is present. Physically these limits can never fully be reached. The monochromatic limit is approached by turning on a single frequency oscillation at $t=0$, and waiting a sufficiently long time $t\to\infty$. The plane wave limit is approximated by letting the source width $\sigma$ being infinitely large, $\sigma\to\infty$. The Fourier-Laplace theory is used to show that these limits do not necessarily exist in gain media, as instabilities may lead to diverging fields. Even for media where the monochromatic limit exists, it may for certain gain media take a very long time for the transients to die out. This fact is also seen in the simulations.
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GORODETSKY, DMITRY. "ACCELERATING EVOLUTION IN FDTD SIMULATIONS WITH DISTRIBUTED MODEL ORDER REDUCTION TECHNIQUES." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155768990.

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Klaedtke, Andreas. "Spatio-temporal non-linear dynamics of lasing in micro-cavities full vectorial Maxwell-Bloch FDTD simulations /." [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB12103645.

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Kim, Jae Hwan (Eric). "Finite-Difference Time-Domain (FDTD) simulations and fabrication of a Fabry-Perot cavity using photonic crystal arrays." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/32578.

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In this thesis, Fabry-Perot (FP) cavity structures aimed at a 850nm wavelength are modeled and analyzed by Finite-Difference Time-Domain (FDTD) simulations, for the purpose of fabricating resonant cavity detectors and Vertical-Cavity Surface-Emitting Lasers (VCSELs). The structures are based on square-lattice photonic crystals. In designing a VCSEL, different types of highly reflective mirrors such as GaAs/AlGaAs Distributed Bragg Reflectors (DBRs), and a GaAs-based Sub-Wavelength Grating (SWG) or a Photonic Crystal (Phc) Slab are used to form a FP cavity. FDTD phase analysis is implemented to estimate resonant conditions in a simple but very effective technique. For the fabrication of a resonant cavity detector, square-lattice photonic crystal arrays are written by (1) Focused Ion Beam (FIB) and (2) e-beam lithography, followed by dry-etching. The quality of air holes, etching depths, and sidewalls are scrutinized by Scanning Electron Microscopy (SEM) imaging and Atomic Force Microscopy (AFM). Post-patterning, a sacrificial layer is etched away by Buffered Oxide Etch (BOE) and a suspended photonic crystal membrane is released by Critical Point Drier (CPD). The SWG and Phc slab used as one of the mirrors in the FP cavity structures are beneficial for achieving a compact-sized resonator, as well as forming multi-wavelength arrays, in which the resonance can be widely tuned by lithographically defined parameters (i.e., for the SWG: period and duty factor and for the Phc slab: lattice constant and radius of the air hole).
Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate
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Törnqvist, Julia. "Electromagnetic Homogenization-simulations of Materials." Thesis, Uppsala universitet, Elektricitetslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-395866.

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This thesis aims to determine the distribution of the relative permittivity for random mixtures of material using electromagnetic simulations. The algorithm used in the simulations is the FDTD method which solves Maxwell's equations numerically in the time-domain. The material is modeled as randomly shaped particles with radius 12 ± 10 micrometre in x- and y-direction and radius 3 ± 1 micrometre in zdirection. The scattering parameters from the transmitted and reflected electric field when a plane wave interacts with the material are measured. The relative permittivity is determined from the scattering parameters using the iterative Baker-Jarvis method. The simulations shows that both the distribution and the value of the relative permittivity is low when the particles have non conducting layers to force interruptions to prevent percolation, a conducting path between the particles. The most important result is of the kind where the simulations do not have any boundaries to prevent percolation. These simulations reflects how the relative permittivity distributes in real measurements. It is established that the value of the relative permittivity has a large distribution and also that percolation occurs because of the periodic structures.
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Břínek, Lukáš. "Plazmonické rezonanční antény." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228250.

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Tato diplomová práce se zabývala plazmonickými anténami pro infračervenou oblast spektra elektromagnetického záření. K hledání zesílení pole bylo použito FDTD (Finite-Difference Time-Domain Method) simulací. Podle očekávání, byla shledána lineární závislost rezonanční vlnové délky na délce raménka platinové antény na křemíkovém povrchu. Diplomová práce se také zabývala výrobou antén pomocí fokusovaného iontového svazku (FIB) a následným měřením rezonančních vlastností pomocí mikroskopické metody FT-IR (Fourier Transform Infrared Spectroscopy). Posun rezonanční vlnové délky byla registrována pouze pro negativní antény. Nakonec se tato práce zabývala vysvětlením saturace křivky závislosti rezonanční vlnové délky na rozměru raménka platinové antény na substrátu ze SRONu (silicon-rich oxynitride).
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Břínek, Lukáš. "Application of Plasmon Polaritons in Nanophotonics." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-234583.

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Práce pojednává o vlastnostech plazmonických antén v infračervené a viditelné oblasti. Práce zahrnuje výrobu, měření a numerické modelování optických vlastností antén. Infračervené plazmonické antény na absorbujícím substrátu (SRON) jsou studovány pro jejich rezonanční a absorpční vlastnosti. Byla nalezena geometrie antény, která poskytuje maximální účinnost absorpce ve SRON vrstvě. Dále je studována možnost zesílení daného vibračního módu substrátu (obsahujícího 3-4 materiálové rezonance) pomocí plazmonické rezonance antény. Nakonec jsou prezentována měření katodoluminiscenčních spekter antén ve viditelném spektru.
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Sayegh, Zaher. "Contribution à l'étude du canal de propagation à l'intérieur des bâtiments par simulations et mesures." Thesis, Rennes, INSA, 2017. http://www.theses.fr/2017ISAR0029/document.

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L'évolution continue des systèmes de communications sans fil en indoor rend nécessaire le développement des outils de caractérisation et de modélisation de la propagation des ondes électromagnétiques; afin de répondre aux problématiques et besoins d'ingénieur et de garantir une meilleure planification et un fonctionnement optimal des systèmes communicants. Les travaux effectués dans le cadre de cette thèse portent sur la modélisation du rayonnement des antennes en tenant compte de la complexité environnementale. La méthode de modélisation basée sur la FDTD, détaillée au cours de ce manuscrit, permet d'obtenir d'une manière efficace et précise les niveaux de champs, en tenant compte des phénomènes de propagation et d'interaction des ondes radioélectriques dans un environnement quelconque. Des améliorations ayant deux objectifs essentiels, ont été apportées à ce code. Le premier s'est consacré à améliorer ses performances, et le deuxième s'est intéressé à l'intégration d'un modèle de corps humain et d'autres sources d'émission, dans le but d'assurer plus de réalisme à la modélisation effectuée avec ce code. La validation du code FDTD a été menée par des études comparatives réalisées dans trois environnements différents. La première étude a porté sur une communication sans fil à travers des portes étanches métalliques à bord d'un navire. Une bonne précision du code FDTD a été relevée en comparant les résultats obtenus par ce code avec ceux obtenus par des mesures. La deuxième a porté sur la caractérisation du rayonnement d'antennes dans un bureau universitaire. Les résultats obtenus par des mesures effectuées dans cet environnement ont été confrontés aux ceux obtenus par le code FDTD et par d'autres outils de simulation (HFSS et un outil de tracé de rayons "Wireless lnsite"). Ils ont permis de montrer la capacité du code FDTD à fournir les résultats les plus proches des mesures avec un temps de calcul acceptable et sans avoir besoin de grandes ressources informatiques. La dernière étude a porté sur l'effet de la présence humaine dans une chambre en acier. Une comparaison entre les résultats fournis par le code FDTD et ceux obtenus expérimentalement a été réalisée et un bon accord a été observé
He continuous evolution of wireless communication systems in indoor environments requires the development of characterization and modeling tools for electromagnetic waves propagation, in order to answer the engineer's issues and needs and to ensure the best planning and an optimal operation of the communicating systems. The work carried out during this thesis concerns antenna radiation modeling, taking into account the environment complexity. The modeling method based on FDTD, detailed in this manuscript, provides efficiently and accurately the fields' strengths, taking account of propagation and radio waves interactions phenomena in any environment. Two main objectives of improvement were brought to this code. The first focused on improving its performance, and the second concerned the emission of multi-sources and the integration of a human body model in order to ensure more realism to modeling realized with this code. The validation of the FDTD code was done by comparative studies in three different environments. The first study concerned a wireless communication through metallic watertight doors on ship board. Good accuracy of the FDTD code was noticed by comparing the code's and measurements' results. The second study concerned the antenna radiation within a typical office environment. The results obtained by measurements were compared to those obtained by the FDTD code and other simulation tools (HFSS and the raytracing tool "Wireless lnsite"). They have shown that the FDTD code provides the most accurate results with an acceptable computational time and without big computer resources. The last study examined the human presence effect in a steel room. Measurements' and FDTD code's results were compared and a qood aqreement was obtained
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Poujet, Yannick. "Transmission exaltée à travers des tamis à photons à ouvertures annulaires nanométriques : simulations et caractérisation." Phd thesis, Université de Franche-Comté, 2007. http://tel.archives-ouvertes.fr/tel-00373714.

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Depuis quelques années, la communauté scientifique internationale s'intéresse fortement aux transmissions exaltées de la lumière à travers des films métalliques nanostructurés (ou « tamis à photons ») dans le domaine du visible et de l'infra-rouge. Ces tamis à photons offrent en effet de nombreuses applications dans le domaine de la nanophotonique (microscopie, fluorescence, SERS, génération de second harmonique, lithographie, filtrage, modulation...). Dans ce travail de thèse, nous proposons d'utiliser comme nano-structure une matrice d'ouvertures annulaires percées dans un film opaque d'or ou d'argent. Ce type de cavités coaxiales rend possible l'excitation d'un mode guidé qui permet d'atteindre des transmissions nettement supérieures (90%) à celles obtenues par des tamis à photons basés sur des résonances plasmons. L'étude théorique utilise une méthode numérique basée sur les différences finies dans le domaine temporel pour résoudre les équations de Maxwell. L'influence des paramètres géométriques (diamètre intérieur et extérieur des ouvertures, période de la matrice, épaisseur du film métallique) et de la nature du métal est ainsi étudiée de façon à optimiser la configuration et d'obtenir une forte transmission dans le domaine du visible. Une cartographie du champ à l'intérieur des cavités ainsi qu'à la surface du métal est également calculée afin de caractériser l'exaltation du champ à l'intérieur des cavités et de déterminer la nature du mode guidé. Ce travail théorique s'appuie sur des caractérisations expérimentales effectuées en champ proche et en champ lointain. L'étude en champ proche a permis de cartographier le champ électrique au voisinage immédiat des ouvertures annulaires : la structure expérimentale met en évidence le rôle fondamental du mode TE11 dans l'exaltation de la transmission. Parallèlement, des spectres expérimentaux obtenus en champ lointain confirment, pour un film d'argent, une transmission d'environ 90% en parfait accord avec les prévisions théoriques. Ce résultat constitue, à notre connaissance, une première mondiale et offre de nombreuses perspectives quant aux applications possibles de tels tamis à photons à ouvertures annulaires.
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Gaillot, Davy Paul. "Optical Properties of Complex Periodic Media Structurally Modified by Atomic Layer Deposition." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14635.

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In the late eighties, a new class of materials, known as photonic crystals (PCs), emerged enabling the propagation and generation of light to be potentially manipulated with unprecedented control. PCs consist of a periodic modulation of dielectric constant in one, two, or three dimensions, which can result in the formation of directional or omni-directional photonic band gaps (PBGs), spectral regions where light propagation is forbidden, and more remarkably, novel dispersion characteristics. Since PC properties scale with the dimension of the wavelength of interest, significant technological constraints must be fully addressed to manufacture 3D PBG materials for optical or infrared applications such as displays, lightning, and communications. PCs enable the unraveling of unique optical phenomena such as PBGs, spontaneous emission rate manipulation, sub-wavelength focusing, and superprism effects. This research focuses on the feasibility to achieve omni-directional PBGs in synthetic opal-based 3D PCs through precise nanoscale control to the original dielectric architecture. In particular, the optical response to the conformal deposition of dielectric layers using atomic layer deposition (ALD) within the porous template is strongly emphasized. Geometrical models were developed to faithfully model the manipulation of the synthetic opal architecture by ALD and then used in electromagnetic algorithms to predict the resulting optical properties. From these results, this research presents and investigates a scheme used to greatly enhance and adjust the PBG width and position, as well as simultaneously reducing the dielectric contrast threshold at which the PBG forms. This Thesis demonstrates that the unique opal architectures offered by ALD not only supports the formation of larger PBGs with high index materials; but also enables the use of optically transparent materials with reduced refractive index. Additionally, slight alteration of these structures facilitates the incorporation of non-linear (NL) electro-optical (EO) material for dynamic tuning capabilities and potentially offers a pathway for fabricating multi-functional photonic devices. Finally, low-temperature ALD was investigated as a means to manipulate band gaps and dispersion effects in 2D PC silicon slab waveguides and 3D organic biologically-derived templates. The results indicate the unique ability of ALD to achieve composite structures with desirable (large PBGs) or novel (slow light) optical properties.
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Books on the topic "FDTD simulations"

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Sullivan, Dennis M. Electromagnetic Simulation Using the FDTD Method. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118646700.

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Inan, Umran S. Numerical electromagnetics: The FDTD method. Cambridge: Cambridge University Press, 2011.

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Schild, Stefan. Advanced material modeling in EM-FDTD. Konstanz: Hartung-Gorre, 2009.

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Raj, Mittra, ed. FDTD modeling of metamaterials: Theory and applications. Norwood, MA: Artech House, 2009.

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Yu, Wenhua. Advanced FDTD methods: Parallelization, acceleration, and engineering applications. Boston: Artech House, 2011.

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Christ, Andreas. Analysis and improvement of the numerical properties of the FDTD algorithm. Konstanz: Hartung-Gorre, 2005.

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Chavannes, Nicolas Pierre. Local mesh refinement algorithms for enhanced modeling capabilities in the FDTD method. Konstanz: Hartung-Gorre, 2002.

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Nguyen, Toan. Electromagnetic simulations of nanooptics based on the Finite Difference Time Domain (FDTD) method. 2007.

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Sullivan, Dennis M. Electromagnetic Simulation Using the FDTD Method. Wiley & Sons, Incorporated, John, 2013.

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Sullivan, Dennis M. Electromagnetic Simulation Using the FDTD Method. Wiley & Sons, Incorporated, John, 2013.

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Book chapters on the topic "FDTD simulations"

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Giovannetti, G., V. Viti, V. Hartwig, F. Frijia, and L. Landini. "Simulations of Magnetic Resonance Phased Array Coils Using FDTD Algorithm." In IFMBE Proceedings, 888–90. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03882-2_237.

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Manteuffel, D., J. Kunisch, and W. Simon. "Characterization of UWB Antennas by Their Spatio-Temporal Transfer Function Based on FDTD Simulations." In Ultra-Wideband, Short-Pulse Electromagnetics 7, 380–90. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-37731-5_42.

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Hagness, S. C., S. T. Ho, and A. Taflove. "Finite-Difference Time-Domain (FDTD) Computational Electrodynamics Simulations of Microlaser Cavities in One and Two Spatial Dimensions." In ICASE/LaRC Interdisciplinary Series in Science and Engineering, 229–51. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5584-7_11.

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Hiroe, M., S. Ishikawa, R. Shiraga, and T. Iwase. "Numerical Simulations of Propagation of Bogie Noise in 3D Field by Duhamel’s Transformation Using Transient Solutions Calculated by 2D-FDTD Method." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 533–40. Tokyo: Springer Japan, 2012. http://dx.doi.org/10.1007/978-4-431-53927-8_63.

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Kim, Yountae, Sukin Yoon, Ikjun Choi, Sechun Park, Ohseob Kwon, and Taeyoung Won. "A Full-Wave Analysis for Multi-Level Interconnects Using FDTD-PML method." In Simulation of Semiconductor Processes and Devices 2001, 336–39. Vienna: Springer Vienna, 2001. http://dx.doi.org/10.1007/978-3-7091-6244-6_76.

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Xuhua, Chen, Yi Jianzheng, and Duan Zhiqiang. "LOD-FDTD Simulation to Estimate Shielding Effectiveness of Periodic Structures." In Computing and Intelligent Systems, 342–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-24091-1_45.

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Hallaj, Ibrahim M., Robin O. Cleveland, Steven G. Kargl, and Ronald A. Roy. "Fdtd Simulation of Transcranial Focusing Using Ultrasonic Phase-Conjugate Arrays." In Acoustical Imaging, 61–66. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4419-8588-0_10.

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Wang, Miao Qing, Zhi Ping Cai, Yong Zhen Huang, Qin Chen, and Xian Shu Luo. "Analysis of Modes in the Nanowire Cavity by FDTD Simulation." In Solid State Phenomena, 1125–28. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-30-2.1125.

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Liu, Enxiao, Liang Cao, and Lei Yang. "Study on Electromagnetic Simulation Methodology for Sea Clutter Based on FDTD Model." In Lecture Notes in Electrical Engineering, 2387–94. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-6571-2_291.

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Wäppling-Raaholt, B., P. O. Risman, and T. Ohlsson. "Microwave Heating of Ready Meals – FDTD Simulation Tools for Improving the Heating Uniformity." In Advances in Microwave and Radio Frequency Processing, 243–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-32944-2_27.

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Conference papers on the topic "FDTD simulations"

1

Rudnicki, Janusz, and Maciej Sypniewski. "Large 3D object FDTD simulations." In 2012 19th International Conference on Microwaves, Radar & Wireless Communications (MIKON 2012). IEEE, 2012. http://dx.doi.org/10.1109/mikon.2012.6233588.

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Gutierrez, Guadalupe, Enrique Pascual, Jesus Alvarez Gonzalez, Sergio Fernandez Romero, and Salvador Gonzalez Garcia. "Strategies for HIRF simulations using FDTD." In 2012 International Symposium on Electromagnetic Compatibility - EMC EUROPE. IEEE, 2012. http://dx.doi.org/10.1109/emceurope.2012.6396705.

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Zhi-Hong Lai and Jean-Fu Kiang. "Modified stokes parameters: Representation and simulations with FDTD." In 2015 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM). IEEE, 2015. http://dx.doi.org/10.1109/iwem.2015.7365047.

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Banerjee, Saswatee, James B. Cole, and Toyohiko Yatagai. "FDTD simulations of biologically inspired submicron photonic structures." In Frontiers in Optics. Washington, D.C.: OSA, 2004. http://dx.doi.org/10.1364/fio.2004.fwh19.

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Zukocinski, Mateusz, and Malgorzata Celuch-Marcysiak. "FDTD Simulations of Resonators with Closely Spaced Modes." In 2006 International Conference on Microwaves, Radar & Wireless Communications. IEEE, 2006. http://dx.doi.org/10.1109/mikon.2006.4345315.

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Moglie, Franco, Luca Bastianelli, Gabriele Gradoni, and Valter Mariani Primiani. "High performance FDTD simulations for chaotic electromagnetic environments." In 2017 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO). IEEE, 2017. http://dx.doi.org/10.1109/nemo.2017.7964254.

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Papio-Toda, A., W. Sorgel, J. Joubert, and W. Wiesbeck. "UWB Antenna Transfer Property Characterization by FDTD Simulations." In 2007 2nd International ITG Conference on Antennas. IEEE, 2007. http://dx.doi.org/10.1109/inica.2007.4353937.

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Balsi, M., S. Esposito, F. Frezza, P. Nocito, P. M. Barone, S. E. Lauro, E. Mattei, E. Pettinelli, G. Schettini, and C. Twizere. "GPR measurements and FDTD simulations for landmine detection." In 2010 13th International Conference on Ground Penetrating Radar (GPR 2010). IEEE, 2010. http://dx.doi.org/10.1109/icgpr.2010.5550213.

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Ren, Jishi, Xudong Wang, and R. Jennifer Hwu. "FDTD simulations of quasi-optical MESFET oscillator arrays." In SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, edited by Mohammed N. Afsar. SPIE, 1998. http://dx.doi.org/10.1117/12.331130.

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Adams, S., J. Payne, and R. Boppana. "Finite Difference Time Domain (FDTD) Simulations Using Graphics Processors." In 2007 DoD High Performance Computing Modernization Program Users Group Conference. IEEE, 2007. http://dx.doi.org/10.1109/hpcmp-ugc.2007.34.

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Reports on the topic "FDTD simulations"

1

Brocato, Robert Wesley. FDTD simulation tools for UWB antenna analysis. Office of Scientific and Technical Information (OSTI), December 2004. http://dx.doi.org/10.2172/920838.

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BAZINET, G. D. Simulation of Multi Canister Overpack (MCO) Handling Machine Impact with Cask and MCO During Insertion into the Transfer Pit (FDT-137). Office of Scientific and Technical Information (OSTI), April 2000. http://dx.doi.org/10.2172/803037.

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