Academic literature on the topic 'Modes de Bloch'

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Journal articles on the topic "Modes de Bloch"

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Maling, B., and R. V. Craster. "Whispering Bloch modes." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, no. 2191 (July 2016): 20160103. http://dx.doi.org/10.1098/rspa.2016.0103.

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We investigate eigenvalue problems for the planar Helmholtz equation in open systems with a high order of rotational symmetry. The resulting solutions have similarities with the whispering gallery modes exploited in photonic micro-resonators and elsewhere, but unlike these do not necessarily require a surrounding material boundary, with confinement instead resulting from the geometry of a series of inclusions arranged in a ring. The corresponding fields exhibit angular quasi-periodicity reminiscent of Bloch waves, and hence we refer to them as whispering Bloch modes (WBMs). We show that if the geometry of the system is slightly perturbed such that the rotational symmetry is broken, modes with asymmetric field patterns can be observed, resulting in field enhancement and other potentially desirable effects. We investigate the WBMs of two specific geometries first using expansion methods and then by applying a two-scale asymptotic scheme.
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Saito, Hikaru, Takumi Sannomiya, Naoki Yamamoto, Daichi Yoshimoto, Satoshi Hata, Yoshifumi Fujiyoshi, and Hiroki Kurata. "1pB_K2Electron beam spectroscopy for plasmonic Bloch modes." Microscopy 67, suppl_2 (October 26, 2018): i6. http://dx.doi.org/10.1093/jmicro/dfy047.

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Shchesnovich, V. S., and V. V. Konotop. "Nondecaying Bloch modes of a dissipative lattice." EPL (Europhysics Letters) 99, no. 6 (September 1, 2012): 60005. http://dx.doi.org/10.1209/0295-5075/99/60005.

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Träger, Denis, Robert Fischer, Dragomir N. Neshev, Andrey A. Sukhorukov, Cornelia Denz, Wieslaw Królikowski, and Yuri S. Kivshar. "Nonlinear Bloch modes in two-dimensional photonic lattices." Optics Express 14, no. 5 (2006): 1913. http://dx.doi.org/10.1364/oe.14.001913.

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Milord, L., E. Gerelli, C. Jamois, A. Harouri, C. Chevalier, P. Viktorovitch, X. Letartre, and T. Benyattou. "Engineering of slow Bloch modes for optical trapping." Applied Physics Letters 106, no. 12 (March 23, 2015): 121110. http://dx.doi.org/10.1063/1.4916612.

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Yang, Xiaosen, Yang Cao, and Yunjia Zhai. "Non-Hermitian Weyl semimetals: Non-Hermitian skin effect and non-Bloch bulk–boundary correspondence." Chinese Physics B 31, no. 1 (January 1, 2022): 010308. http://dx.doi.org/10.1088/1674-1056/ac3738.

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Abstract We investigate novel features of three-dimensional non-Hermitian Weyl semimetals, paying special attention to the unconventional bulk–boundary correspondence. We use the non-Bloch Chern numbers as the tool to obtain the topological phase diagram, which is also confirmed by the energy spectra from our numerical results. It is shown that, in sharp contrast to Hermitian systems, the conventional (Bloch) bulk–boundary correspondence breaks down in non-Hermitian topological semimetals, which is caused by the non-Hermitian skin effect. We establish the non-Bloch bulk–boundary correspondence for non-Hermitian Weyl semimetals: the topological edge modes are determined by the non-Bloch Chern number of the bulk bands. Moreover, these topological edge modes can manifest as the unidirectional edge motion, and their signatures are consistent with the non-Bloch bulk–boundary correspondence. Our work establishes the non-Bloch bulk–boundary correspondence for non-Hermitian topological semimetals.
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Deymier, Pierre A., Keith Runge, Alexander Khanikaev, and Andrea Alu. "Pseudo-spin polarized one-way elastic wave eigenstates in one-dimensional phononic superlattices." Journal of the Acoustical Society of America 155, no. 3_Supplement (March 1, 2024): A192. http://dx.doi.org/10.1121/10.0027268.

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We use a one-dimensional discrete binary elastic superlattice bridging continuous models of superlattices that showcase one-way propagation character and the discrete elastic Su-Schrieffer-Heeger model that does not. By considering Bloch wave solutions of the superlattice wave equation, we demonstrate conditions supporting elastic eigenmodes that do not satisfy translational invariance of Bloch waves over the entire Brillouin zone, unless their amplitude vanishes for some wave number. These modes are characterized by a pseudo-spin, and occur only on one side of the Brillouin zone for given spin, leading to spin-selective one-way wave propagation. We demonstrate how these features result from the interplay of translational invariance of Bloch waves, pseudo-spin, and a Fabry-Pérot resonance condition in the superlattice unit cell.
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Vandenbem, Cédric. "Electromagnetic surface waves of multilayer stacks: coupling between guided modes and Bloch modes." Optics Letters 33, no. 19 (September 30, 2008): 2260. http://dx.doi.org/10.1364/ol.33.002260.

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Smaâli, R., D. Felbacq, and G. Granet. "Bloch waves and non-propagating modes in photonic crystals." Physica E: Low-dimensional Systems and Nanostructures 18, no. 4 (June 2003): 443–51. http://dx.doi.org/10.1016/s1386-9477(03)00183-8.

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Gjonaj, B., J. Aulbach, P. M. Johnson, A. P. Mosk, L. Kuipers, and A. Lagendijk. "Optical Control of Plasmonic Bloch Modes on Periodic Nanostructures." Nano Letters 12, no. 2 (January 24, 2012): 546–50. http://dx.doi.org/10.1021/nl204071e.

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Dissertations / Theses on the topic "Modes de Bloch"

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Ratcliffe, Keith. "Trapped modes in the presence of thin obstacles." Thesis, Loughborough University, 2002. https://dspace.lboro.ac.uk/2134/34725.

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In this thesis we use various techniques to investigate the occurrence of trapped modes in the presence of thin obstacles. Physically trapped modes are oscillations of finite energy in a fluid which is unbounded in at least one direction. These oscillations mainly occur locally to some structure and decay to zero at large distances away from it. Trapped modes are important as they have been found to exist in a wide range of physical situations. We consider a number of problems in two and three dimensions including waveguides containing bodies and arrays of identical structures. A modified residue calculus technique, a variational technique and a method based on the truncation of matched eigenfunction expansions are used to solve the problems, with numerous results presented.
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Gerelli, Emmanuel. "Nanopinces optiques à base de modes de Bloch lents en cavité." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00838792.

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Ce travail de thèse s'inscrit dans les efforts actuellement réalisés, pour améliorer l'efficacité des pinces optiques conventionnelles qui permettent de manipuler sans contact des objets de quelques dizaines de nanomètres à quelques dizaines de micromètres avec une extrême précision et trouvent de nombreuses applications en biophysique et sciences de colloïdes.L'objectif de cette thèse a été d'explorer une nouvelle approche pour la réalisation de Nanopinces Optiques. Elle s'appuie sur l'utilisation de cavités à cristaux photoniques à modes de Bloch lents. Ces cavités peuvent être efficacement et facilement excitées par un faisceau Gaussien à incidence normale. Contrairement aux pinces optiques conventionnelles, des objectifs à faibles ouvertures numériques peuvent être utilisés. Les performances attendues en termes de piégeage vont bien au-delà de limitations imposées par la limite de diffraction pour les pinces conventionnelles. Ce travail démontre expérimentalement l'efficacité de l'approche. Cette thèse comporte deux parties principales. Dans un premier temps, il a fallu monter un banc expérimental pour mener nos études. Nous avons construit un banc optique, interfacé les instruments, et développé des applications logicielles pour analyser les données. Deux éléments importants ont présidé à sa construction : - Le développement d'un système optique permettant d'exciter les nanostructures photoniques - la conception d'un système d'imagerie pour suivre les nanoparticules. La seconde partie de ce travail a porté sur la mise en évidence du piégeage optique à l'aide de nanostructure à base de cristaux photonique. Nous avons d'abord montré que même des cavités possédant des coefficients de qualités modérés (quelques centaines) permettait d'obtenir des pièges optiques dont l'efficacité est d'un ordre de grandeur supérieur à celui de pinces conventionnels. Fort de ce résultat, nous avons exploré un nouveau type de cavité à cristaux photoniques s'appuyant sur une approche originale : des structures bi-périodiques. Nous avons montré qu'à l'aide de cette approche des facteurs de qualités de l'ordre de plusieurs milliers étaient facilement atteignable. A l'aide de ces nouvelles structures, nous sommes arrivés aux résultats le plus important de ce travail : le piégeage de nanoparticules de 250nm de rayon avec une puissance optique incidente de l'ordre du milliwatt. Une analyse fine du mouvement de la nanoparticule, nous a permis de trouver la signature du mode de Bloch lent.
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Manga, Etoungh Dimitri. "Application de la réfraction négative à l'imagerie acoustique à l'aide de cristaux phononiques bidimensionnels." Phd thesis, Université François Rabelais - Tours, 2012. http://tel.archives-ouvertes.fr/tel-00785442.

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La propagation des ondes ultrasonores à travers des cristaux phononiques CP à deux dimensions 2D constitués de diffuseurs solides dans des matrices solide et fluide est ici étudiée, ainsi que la caractérisation de ces milieux et leur application à l'imagerie acoustique. Les techniques expérimentales utilisées permettent une mesure complète des champs transmis à travers les cristaux. Les études sont menées dans des bandes fréquentielles autorisant les effets de réfraction négative indispensables à l'obtention d'une résolution inférieure à la limite de diffraction (super-résolution). De manière à compléter les analyses, différents outils théoriques sont exploités : Décomposition en Ondes Planes et Éléments Finis, notamment. La première partie du document concerne la réalisation et la caractérisation de cristaux phononiques possédant des propriétés nécessaires à la réalisation de systèmes d'imagerie acoustique : réfraction négative, contours équi-fréquences circulaires, accord d'indice, accord d'impédance. Cette première étude est menée sur un cristal à matrice solide, elle met en relief la possibilité de générer différents modes de Bloch au cours de la propagation. L'accord d'indice avec l'eau n'étant cependant pas obtenu, la seconde partie porte sur la réfraction négative et la focalisation des ondes à travers un CP à matrice fluide. Les propriétés du CP déterminées, le dernier chapitre s'attache à évaluer les performances des systèmes d'imagerie développés : dynamique et résolution.
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Duan, Yuting. "Trapped modes and acoustic resonances." Thesis, Loughborough University, 2004. https://dspace.lboro.ac.uk/2134/12860.

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The scattering of waves by a finite thin plate in a two-dimensional wave guide and an array of finite thin plates, in the presence of subsonic mean flow, are formulated using a mode matching technique. The influence of mean flow on trapped modes in the vicinity of a finite thin plate in a two-dimensional wave guide is then investigated by putting the amplitude of the forcing term to zero in the scattering problem. The conditions for complex resonances are found, and numerical results are computed. The influence of mean flow on Rayleigh-Bloch modes is investigated by using a similar methodology. The condition for embedded trapped modes to exist is introduced next, and then numerical results for embedded trapped modes without mean flow are presented. Complex resonances without mean flow are then found by fixing the geometry of the waveguide. The influence of mean flow on complex resonances and embedded trapped modes is investigated subsequently. In addition, the investigation of scattering coefficients is discussed when the frequency of an incident wave is near the real part of the frequency of complex resonances or embedded trapped modes. Embedded trapped modes near an indentation in a strip wave guide, which may correspond to a two-dimensional acoustic wave guide or a channel of uniform water depth in water waves, are also found. Modes are sought which are either symmetric or anti-symmetric about the centreline of the guide and the centre of the indentation. In each case, a simple approximate solution is found numerically. Full solutions are then found by using a Galerkin approach in which the singularity near the indentation edge is modelled by choosing proper special functions. The final part of the thesis is devoted to spinning modes (Rayleigh-Bloch modes) in a cylindrical waveguide in the presence of radial fins. A mode matching technique is used to obtain the potential, and the coefficients in the expansion are found numerically by using an efficient Galerkin procedure. In addition, an existence proof for modes symmetric about the centre of the guide and the centre of the section with radial fins is given by applying a variational approach. The connection between Rayleigh-Bloch modes and trapped modes is discussed thereafter, and numerical results for a number of geometric configurations are presented.
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Crouzil, Thomas. "Modélisation de structure dynamique dans un champ optique." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0043/document.

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Le piégeage optique se présente maintenant, depuis quelques décennies, comme une thématique majeure à l'intersection de diverses disciplines. Depuis les résultats d'Ashkin, de nombreux travaux ont été effectués dans le piégeage et le guidage d'objets physiques (particules, molécules, bactéries, etc.) de toutes tailles. Ces derniers caractériseront alors, devant la longueur d'onde, le domaine optique dans lequel nous nous placerons (Rayleigh, Mie, Optique géométrique).Notre travail porte donc sur l'étude des propriétés de chaînes linéaires périodiques de gouttelettes (huile), placées dans l'eau, et soumises à deux faisceaux laser horizontaux contra-propageants de profil gaussien. Nous démontrons qu'il est possible d'établir un ordre spatial sur un ensemble de grosses gouttes (devant la longueur d'onde) suivant une structure périodique. L'originalité d'un tel système réside dans le fait que la lumière peut alors être refocalisée par l'ensemble des gouttes espacées périodiquement. Cette périodicité peut ainsi, dans certains cas, conférer au faisceau une refocalisation périodique au sein du réseau. Cette première étude, en limite statique, nous permet ainsi de mettre en évidence les conditions de couplage des modes liés aux chaînes de gouttes. En particulier, nous caractérisons la présence de modes de Bloch où le faisceau se propage avec une périodicité équivalente à celle du réseau. Cela nous amène à remarquer que ces conditions modales sont soumises au paramètre de phase gaussien "Thêta" (phase de Gouy). Ainsi, bien que structuré à une échelle largement supérieure, nous mettons en évidence théoriquement des propriétés analogues à celle des cristaux photoniques, conférées par la périodicité des chaînes de gouttes. Ce qui nous permet, en conséquence, de démontrer l'existence de bandes interdites, nous amenant à définir un ensemble de modes guidants/nonguidants de cette chaîne. Cette étude statique est, par la suite, étendue d'un point de vue dynamique en considérant l'effet des forces optiques sur les gouttes. Nous démontrons ainsi qu'il est possible de piéger optiquement de telles gouttes sur des états d'équilibres stables. Au-delà desquels nous mettons en évidence, à travers une étude paramétrique, l'existence de modes oscillants périodiques ou pseudo-périodiques. Enfin, nous prenons en compte les phénomènes de collisions par coalescence, entraînant une réorganisation des répartitions de champs optiques qui peuvent se traduire par de nouvelles configurations de piégeage
Optical trapping appears now, since a few decades, as a major theme at the intersection of variousdisciplines. Since the results of Ashkin, many works were made in the trapping and the guidance of physical objects (particles, molecules, bacteria, etc.) of any sizes. The latter will characterize then, in front of the wavelength, the optical domain in which we shall take place (Rayleigh, Mie, Geometrical Optics).Our work thus concerns the study of the properties of periodic linear chains of droplets (oil), placed in water, and submitted to two counter-propagating horizontal laser beams of gaussian profile. We show that it is possible to establish a spatial order of a set of large drops (in front of the wavelength) in a periodic structure. The originality of such a system lies in the fact that the light can then be refocused by the set of periodically spaced drops. This periodicity may thus, in some cases, confer on the beam a periodic refocusing within the network. This first study, in static limit, allows us to identify the conditions of coupling modes associated with drop channels. In particular, we characterize the presence of Bloch modes where the beam propagates with similar frequency to that of the network. This leads us to note that these modal conditions are submitt to the gaussian phase parameter "Thêta" (Gouy phase). Thus, although structured at a widely higher scale, we highlight theoretically similar properties to that of the photonic crystals, conferred by the periodicity of the chains of drops. This allows us, consequently, to demonstrate the existence of bandgaps, leading us to define a set of guiding/not-guiding modes of this chain. This static study, thereafter, is extended from a dynamic point of view by taking into account the effect of the optical forces on the drops. We show that it is possible to optically trap such drops on stable equilibrium states. Beyond of which we highlight, through a parametric study, the existence of periodic or pseudo-periodic oscillating modes.Finally, we take into account the phenomena of collisions by coalescence, involving a reorganization of the distributions of optical fields which can result in new configurations of trapping
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Vo, Thanh Phong. "Optical near-field characterization of Slow-Bloch Mode based photonic crystal devices." Phd thesis, Ecole Centrale de Lyon, 2011. http://tel.archives-ouvertes.fr/tel-00758323.

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2D-Photonic crystal (PC) structures have enabled the fabrication of a wide variety of nanophotonic components. In perfect PCs, the exploitation of the enhanced local density of states at critical points of the band diagram has attracted considerable attention. Near these points, where the group velocity vanished, low curvature flat bands give rise to delocalized and stationary optical slow Bloch modes (or slow light modes). Properties of slow light make them good candidates to enhance Purcell or various non-linear effects or to design low-threshold lasers. Among these modes, slow Bloch modes (SBMs) emitting in the vertical direction, i.e. located at the Γ- point of the Brillouin zone are particularly interesting for integrating 2D PC architectures with free space optics. In particular, some SBMs proved to be suitable for achieving strong vertical emission with peculiar polarization properties. Other promising applications concern disorder: by introducing a controlled randomness into the PC structure, it is possible to induce a transition from slow Bloch mode (in ordered PC) to Anderson's localization (in disordered PC) as a function of disorder degree. In this PhD dissertation, Slow Bloch modes have been studied and characterized by the means of Near-field Scanning Optical microscopy (NSOM). We particularly focused on Slow Bloch laser mode at Γ- point of a honeycomb 2DPC. This NSOM technique enables to visualize the evanescent component of the mode with a spatial resolution below the diffraction limit. In this work, we showed that the far-field and the near-field image of the mode at the 2D-PC surface are different and that near-field results yield a better insight in the real mode structure inside the PC slab in agreement with theoretical prediction. The importance of the probe selection (bare silica, metallized tip and bow-tie aperture nanoantenna) for studying III-V photonic crystal structures was also demonstrated. Besides intensity measurement of the electromagnetic field, the polarization of the electric field has been measured at the nanoscale for the first time by using a bow-tie nano-antenna probe. These results enable the unambiguous identification of the modes with the 3D-FDTD simulations.In this work is also reported the first observation of two-dimensional localization of light in two types of 2D random photonic crystal lasers, where Slow Bloch Mode (SBM) is scattered by artificial structural randomness in triangular PCs. The structural randomness is introduced whether by nanometer displacements in the positions of lattice elements (air holes), whether by variation of the hole diameters. The direct near-field imaging of the lasing mode by use of NSOM for the first time, allowed us to observe the transition of the extended planar SBM to be Anderson localized.
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Zang, Xiaorun. "Lumière lente dans les guides à cristaux photoniques pour l'interaction renforcée avec la matière." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0172/document.

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Dans cette thèse, nous avons étudié l'impact considérable de désordre aléatoire sur le transport de la lumière lente dans les guides à cristaux photoniques 1D, c'est-à-dire la localisation de la lumière. Les mesures en champ proche, les simulations statistiques et le modèle théorique révèlent l'existence d'une limite inférieure de l’extension spatiale des modes localisés. Nous avons également présenté que le niveau de désordre et l’extension spatiale de mode localisé individuelle sont liés par la masse effective de photons plutôt que la vitesse de groupe considérant en général.Deuxièmement, les systèmes hybrides d'atomes froids et des guides à cristaux photoniques ont été reconnus comme un approche prometteuse pour l'ingénierie grande interaction lumière-matière au niveau des atomes et des photons individuels. Dans cette thèse, nous avons étudié la physique, à savoir le transport de la lumière dans des guides de nanophotonique périodiques couplées à des atomes à deux niveaux. Notre expression semi-analytique développée est générale et peut rapidement caractériser le couplage entre les atomes froids et les photons guidées. Pour surmonter les difficultés techniques considérables existent dans les systèmes hybrides atomique et photonique, nous avons conçu un guide nanophotonique qui supporte un mode de Bloch lente guidée avec grande queue évanescente dans l'espace libre pour les atomes froids de piégeage. Pour adapter précisément la région de fréquence de la lumière lente du mode guidé à la ligne de transition atomique, nous avons conçu la bande photonique et de la courbe de dispersion du mode guidé afin que la force de l'interaction est robuste contre imprévisible fabrication imperfection
In this thesis, we firstly investigated the striking influence of random disorder on light transport near band edges in one dimensional photonic crystal wave guides, i.e. light localization. Near-field measurements, statistical simulations and theoretical model revealed the existence of a lower bound for the spatial extent of localized modes. We also showed that the disorder level and the spatial extent of individual localized mode is linked by the photon effective mass rather than the generally considered group velocity. Secondly, hybrid cold atoms and photonic crystal wave guides system have been recognized as a promising paradigm for engineering large light-matter interaction at single atoms and photons level. In this thesis, we studied the basic physics, i.e. light transport in periodic nanophotonic wave guides coupled to two-level atoms. Our developed general semi-analytical expression can quickly characterize the coupling between cold atoms and guided photons. Aim to overcome the significant technical challenges existed for developing hybrid atom-photonic systems, we designed a nanophotonic waveguide, which supports a slow guided Bloch mode with large evanescent tail in free space for cold atoms trapping (release the limitation imposed by Casmir Polder force and technical challenge of nanoscale manipulation of cold atoms). To match precisely the slow light region of the guided mode to the atomic transition line, we carefully engineered the photonic band and the dispersion curve (i.e.flatness) of the guided mode so that the interaction strength is robust against unpredictable fabrication imperfection
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Salemeh, Elie. "Periodic structures : transmission invariance and symmetry effects." Electronic Thesis or Diss., Le Mans, 2024. http://www.theses.fr/2024LEMA1010.

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Une caractéristique du régime localisé dans un milieu désordonné est l’insensibilité du speckle transmis à l’ondeincidente. En optique, l’image sur un écran du champ transmis à travers un milieu désordonné opaque - le speckle- est la même quelles que soient les conditions d’éclairage. Ce phénomène remarquable peut être expliqué parl’analyse des modes propres de transmission du matériau étudié. Le régime localisé se caractérise par laprédominance d’un unique mode, la transmission de tous les autres étant significativement plus faible. Le motifdu champ transmis est alors déterminé par ce seul mode, indépendamment de la source. Un phénomène analogueest possible dans un milieu ordonné, périodique, lorsque l’onde propagée dans le milieu est principalement portéepar un unique mode de Bloch. L’onde propagée dans le milieu périodique est alors progressivement « gelée »,présentant un même motif, quelque soit la source qui l’a générée. Le travail présenté vise à caractériser etobserver expérimentalement ce phénomène dans le cas de la propagation dans un guide d’onde périodique. Il viseaussi à caractériser ce phénomène dans le cas de la transmission à travers un réseau de diffraction. Finalementnous nous intéressons aux effets de la symétrie lorsqu’une barrière opaque est placée dans un guide d’ondespériodique, en particulier au gain de la transmission induit par la symétrie
A characteristic of the localized regime in a disordered medium is the insensitivity of the transmitted speckle tothe incident wave. In optics, the image on a screen of the transmitted field through an opaque disordered medium- the speckle - remains the same regardless of the lighting conditions. This remarkable phenomenon can beexplained by analyzing the eigenmodes of transmission of the studied material. The localized regime ischaracterized by the predominance of a single mode, with the transmission of all other modes being significantlyweaker. The pattern of the transmitted field is then determined by this single mode, regardless of the source. Asimilar phenomenon is possible in an ordered, periodic medium, when the wave propagated in the medium ismainly carried by a single Bloch mode. The wave propagated in the periodic medium is then gradually "frozen",presenting the same pattern, regardless of the source that generated it. The presented work aims to characterizeand to observe experimentally this phenomenon in the case of propagation in a periodic waveguide. It also aims tocharacterize this phenomenon in the case of transmission through a diffraction grating. Finally, we are interestedin the effects of symmetry when an opaque barrier is placed in a periodic waveguide, specifically focusing on thetransmission enhancement induced by symmetry
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Roth, Paul [Verfasser], Philip St J. [Akademischer Betreuer] Russell, Philip St J. [Gutachter] Russell, Fabio [Gutachter] Biancalana, and Markus A. [Gutachter] Schmidt. "Helical Bloch Modes in Twisted Photonic Crystal Fibers / Paul Roth ; Gutachter: Philip St.J. Russell, Fabio Biancalana, Markus A. Schmidt ; Betreuer: Philip St.J. Russell." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2021. http://d-nb.info/1228627622/34.

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Liu, Wei. "The Effective Spin Concept to Study the Properties of the Shannon Entropy of Arrays of Elastic Scatterers." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1331300313.

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Books on the topic "Modes de Bloch"

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Frankel, Jeffrey A. Trade blocs and currency blocs. Cambridge, MA: National Bureau of Economic Research, 1993.

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Frankel, Jeffrey A. Trade blocs and currency blocs. Cambridge, Mass: National Bureau of Economic Research, 1994.

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Kendall, Toby. Theoretical models of trade blocs and integrated markets. [s.l.]: typescript, 2000.

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Srivastava, M. S. Testing for block effects and analysis of regression models based on survey data. Toronto: University of Toronto, Dept. of Statistics, 1987.

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Angel, Estrada, ed. The Spanish block of the ESCB-Multi-Country Model. Madrid: Banco de España, Servicio de Estudios, 2002.

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Eichengreen, Barry J. Trade blocs, currency blocs and the disintegration of world trade in the 1930s. Cambridge, MA: National Bureau of Economic Research, 1993.

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Standardization, International Organization for. Information technology: Modes of operation for an n-bit block cipher algorithm. Geneva: ISO, 1991.

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Management Analysis & Planning Associates. A proposed cost-based block grant model for Wyoming school finance. [Cheyenne, Wyo.?]: Management Analysis & Planning Associates, 1997.

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Blais, J. A. R. Least-squares block adjustment of stereoscopic models and error analysis. Calgary, Alta: University of Calgary, Division of Surveying Engineering, 1985.

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1953-, Bürgi Andreas, ed. Europa Miniature: Die kulturelle Bedeutung des Reliefs, 16.- 21. Jahrhundert = il significato culturale dei rilievi plastici, XVI-XXI secolo. Zürich: Verlag Neue Zürcher Zeitung, 2007.

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Book chapters on the topic "Modes de Bloch"

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Ferguson, Niels, Bruce Schneier, and Tadayoshi Kohno. "Block Cipher Modes." In Cryptography Engineering, 63–76. Indianapolis, Indiana: Wiley Publishing, Inc., 2015. http://dx.doi.org/10.1002/9781118722367.ch4.

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Kojima, Kazuhiro, and Kazuko Akamatsu. "Space Block Nozawa." In Housing Moves On, 162–67. Vienna: Springer Vienna, 2009. http://dx.doi.org/10.1007/978-3-211-79174-5_29.

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Meier, Lukas. "Incomplete Block Designs." In ANOVA and Mixed Models, 165–78. Boca Raton: Chapman and Hall/CRC, 2022. http://dx.doi.org/10.1201/9781003146216-8.

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Meier, Lukas. "Complete Block Designs." In ANOVA and Mixed Models, 109–18. Boca Raton: Chapman and Hall/CRC, 2022. http://dx.doi.org/10.1201/9781003146216-5.

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McDonnell, Mark. "VISUAL-BLOCK Mode." In Pro Vim, 109–17. Berkeley, CA: Apress, 2014. http://dx.doi.org/10.1007/978-1-4842-0250-0_8.

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Weik, Martin H. "block chain mode." In Computer Science and Communications Dictionary, 132. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_1680.

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Weik, Martin H. "block multiplexer mode." In Computer Science and Communications Dictionary, 135. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_1716.

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Phan, Raphael C. –W, and Mohammad Umar Siddiqi. "Related-Mode Attacks on Block Cipher Modes of Operation." In Computational Science and Its Applications – ICCSA 2005, 661–71. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11424857_73.

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Madhyastha, N. R. Mohan, S. Ravi, and A. S. Praveena. "Block Designs." In A First Course in Linear Models and Design of Experiments, 43–104. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8659-0_3.

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Won, Chee Sun, and Robert M. Gray. "Block-Wise Markov Models." In Stochastic Image Processing, 125–48. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4419-8857-7_5.

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Conference papers on the topic "Modes de Bloch"

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Yang, J., C. Sauvan, P. Lalanne, and H. T. Liu. "Bloch modes of optical fishnets." In SPIE Optics + Optoelectronics, edited by Vladimir Kuzmiak, Peter Markos, and Tomasz Szoplik. SPIE, 2011. http://dx.doi.org/10.1117/12.888990.

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Sivasubramaniam, S. Y., V. R. Chinni, C. R. Menyuk, and P. K. A. Wai. "Bloch Modes of Periodically Segmented Waveguides." In Integrated Photonics Research. Washington, D.C.: OSA, 1995. http://dx.doi.org/10.1364/ipr.1995.ifb4.

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Cluzel, Benoit, Emmanuel Picard, Thomas Charvolin, Emmanuel Hadji, Davy Gérard, and Frédérique de Fornel. "Bloch Modes Coupling in Photonic Crystal Waveguides." In Nanophotonics for Information Systems. Washington, D.C.: OSA, 2005. http://dx.doi.org/10.1364/npis.2005.nthb3.

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Ferrier, Lydie, Cécile Jamois, Clémentine Symonds, Joël Bellessa, and Taha Benyattou. "Tailoring Bloch modes in Tamm plasmons structures (Conference Presentation)." In High Contrast Metastructures VI, edited by Connie J. Chang-Hasnain, Fumio Koyama, Weimin Zhou, and Andrei Faraon. SPIE, 2017. http://dx.doi.org/10.1117/12.2250319.

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Gumus, M., I. H. Giden, M. Turduev, and H. Kurt. "Non-diffraction Bloch modes in low-symmetric photonic crystals." In 2017 Conference on Lasers and Electro-Optics Europe (CLEO/Europe) & European Quantum Electronics Conference (EQEC). IEEE, 2017. http://dx.doi.org/10.1109/cleoe-eqec.2017.8087164.

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Zeng, X., Y. Chen, M. H. Frosz, P. Roth, G. K. L. Wong, P. St J. Russell, and B. Stiller. "Brillouin amplification of helical Bloch modes carrying optical vortices." In CLEO: QELS_Fundamental Science. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_qels.2022.ff2l.6.

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We observe Brillouin amplification of circularly polarized vortex modes in chiral photonic crystal fiber. Angular momentum conservation means that the pump and backward Stokes signals have opposite topological charge and spin.
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Momeni, Babak, and Ali Adibi. "Adiabatic coupling to extended Bloch modes of photonic crystals." In Integrated Optoelectronic Devices 2005. SPIE, 2005. http://dx.doi.org/10.1117/12.601172.

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Su, Shu-Yu, Lingling Tang, and Tomoyuki Yoshie. "Optical surface Bloch modes of complete photonic band gap materials." In Advances in Optical Materials. Washington, D.C.: OSA, 2012. http://dx.doi.org/10.1364/aiom.2012.jth2a.13.

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Wang, Kangpeng, Rafael Dahan, Michael Shentcis, Yaron Kauffmann, and Ido Kaminer. "Transmission Nearfield Optical Microscopy (TNOM) of Photonic Crystal Bloch Modes." In CLEO: Applications and Technology. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/cleo_at.2019.jth5b.9.

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Mensah, Georg A., and Jonas P. Moeck. "Efficient Computation of Thermoacoustic Modes in Annular Combustion Chambers Based on Bloch-Wave Theory." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43476.

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Most annular combustors feature a discrete rotational symmetry so that the full configuration can be obtained by copying one burner–flame segment a certain number of times around the circumference. A thermoacoustic model based on the Helmholtz equation then admits special solutions of the so-called Bloch type that can be obtained by considering one segment only. We show that a significant reduction in computational effort for the determination of thermoacoustic modes can be achieved by exploiting this concept. The framework is applicable even in complex cases including a non-homogeneous temperature field and a frequency-dependent, spatially distributed flame response. A parametric study on a three-dimensional combustion chamber model is conducted using both the full scale chamber simulation and a one-segment model with the appropriate Bloch-type boundary conditions. The results for both computations are compared in terms of mode frequencies and growth rates as well as the corresponding mode shapes. This comparison demonstrates the benefits of the Bloch-wave based analysis. It is further shown that even the effect of circumferential asymmetries can be assessed based on computations of one burner–flame segment only by resorting to spectral perturbation theory.
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Reports on the topic "Modes de Bloch"

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Dworkin, M. J. Recommendation for block cipher modes of operation :. Gaithersburg, MD: National Institute of Standards and Technology, 2001. http://dx.doi.org/10.6028/nist.sp.800-38a.

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Dworkin, M. J. Recommendation for block cipher modes of operation :. Gaithersburg, MD: National Institute of Standards and Technology, 2010. http://dx.doi.org/10.6028/nist.sp.800-38a-add.

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Dworkin, M. J. Recommendation for block cipher modes of operation :. Gaithersburg, MD: National Institute of Standards and Technology, 2016. http://dx.doi.org/10.6028/nist.sp.800-38b.

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Dworkin, M. J. Recommendation for block cipher modes of operation :. Gaithersburg, MD: National Institute of Standards and Technology, 2005. http://dx.doi.org/10.6028/nist.sp.800-38b-2005.

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Dworkin, M. J. Recommendation for block cipher modes of operation :. Gaithersburg, MD: National Institute of Standards and Technology, 2007. http://dx.doi.org/10.6028/nist.sp.800-38c.

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Dworkin, M. J. Recommendation for block cipher modes of operation :. Gaithersburg, MD: National Institute of Standards and Technology, 2007. http://dx.doi.org/10.6028/nist.sp.800-38d.

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Dworkin, M. J. Recommendation for block cipher modes of operation :. Gaithersburg, MD: National Institute of Standards and Technology, 2010. http://dx.doi.org/10.6028/nist.sp.800-38e.

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Dworkin, Morris J. Recommendation for Block Cipher Modes of Operation:. Gaithersburg, MD: National Institute of Standards and Technology, December 2012. http://dx.doi.org/10.6028/nist.sp.800-38f.

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Chapman, Ray, Phu Luong, Sung-Chan Kim, and Earl Hayter. Development of three-dimensional wetting and drying algorithm for the Geophysical Scale Transport Multi-Block Hydrodynamic Sediment and Water Quality Transport Modeling System (GSMB). Engineer Research and Development Center (U.S.), July 2021. http://dx.doi.org/10.21079/11681/41085.

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The Environmental Laboratory (EL) and the Coastal and Hydraulics Laboratory (CHL) have jointly completed a number of large-scale hydrodynamic, sediment and water quality transport studies. EL and CHL have successfully executed these studies utilizing the Geophysical Scale Transport Modeling System (GSMB). The model framework of GSMB is composed of multiple process models as shown in Figure 1. Figure 1 shows that the United States Army Corps of Engineers (USACE) accepted wave, hydrodynamic, sediment and water quality transport models are directly and indirectly linked within the GSMB framework. The components of GSMB are the two-dimensional (2D) deep-water wave action model (WAM) (Komen et al. 1994, Jensen et al. 2012), data from meteorological model (MET) (e.g., Saha et al. 2010 - http://journals.ametsoc.org/doi/pdf/10.1175/2010BAMS3001.1), shallow water wave models (STWAVE) (Smith et al. 1999), Coastal Modeling System wave (CMS-WAVE) (Lin et al. 2008), the large-scale, unstructured two-dimensional Advanced Circulation (2D ADCIRC) hydrodynamic model (http://www.adcirc.org), and the regional scale models, Curvilinear Hydrodynamics in three dimensions-Multi-Block (CH3D-MB) (Luong and Chapman 2009), which is the multi-block (MB) version of Curvilinear Hydrodynamics in three-dimensions-Waterways Experiments Station (CH3D-WES) (Chapman et al. 1996, Chapman et al. 2009), MB CH3D-SEDZLJ sediment transport model (Hayter et al. 2012), and CE-QUAL Management - ICM water quality model (Bunch et al. 2003, Cerco and Cole 1994). Task 1 of the DOER project, “Modeling Transport in Wetting/Drying and Vegetated Regions,” is to implement and test three-dimensional (3D) wetting and drying (W/D) within GSMB. This technical note describes the methods and results of Task 1. The original W/D routines were restricted to a single vertical layer or depth-averaged simulations. In order to retain the required 3D or multi-layer capability of MB-CH3D, a multi-block version with variable block layers was developed (Chapman and Luong 2009). This approach requires a combination of grid decomposition, MB, and Message Passing Interface (MPI) communication (Snir et al. 1998). The MB single layer W/D has demonstrated itself as an effective tool in hyper-tide environments, such as Cook Inlet, Alaska (Hayter et al. 2012). The code modifications, implementation, and testing of a fully 3D W/D are described in the following sections of this technical note.
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Hasanov, Fakhri, Heyran Aliyeva, Majed Almozaini, and Carlo Andrea Bollino. Extended KGEMM’s Emission Block With Carbon Pricing. King Abdullah Petroleum Studies and Research Center, March 2024. http://dx.doi.org/10.30573/ks--2024-mp01.

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This methodological work develops a representation of carbon pricing through the KAPSARC Global Energy Macroeconometric Model (KGEMM). This representation makes two principal contributions in terms of model capabilities: establishing a feedback link from the emissions block to the energy block and connecting the emissions block to the fiscal block, as the government collects revenue from the carbon dioxide emitted by customers / sectors.
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