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Etude De La Reponse Optique Non Lineaire Du Troisieme Ordre De Materiaux Nanocomposites Or Dielectrique
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Book Synopsis Étude de la réponse optique non-linéaire du troisième ordre de matériaux nanocomposites or/diélectrique by : Nadège Roetzinger-Pinon
Download or read book Étude de la réponse optique non-linéaire du troisième ordre de matériaux nanocomposites or/diélectrique written by Nadège Roetzinger-Pinon and published by . This book was released on 2002 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence des effets thermiques sur la réponse optique de matériaux nanocomposites métal-diélectrique by : Majid Rashidi Huyeh
Download or read book Influence des effets thermiques sur la réponse optique de matériaux nanocomposites métal-diélectrique written by Majid Rashidi Huyeh and published by . This book was released on 2006 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les matériaux nanocomposites constitués de nanoparticules de métaux nobles en matrice diélectrique possèdent des propriétés optiques spécifiques liées à la résonance de plasmon de surface (RPS). En particulier, ils présentent d'importantes non-linéarités d’ordre 3, que l’on mesure généralement en utilisant un laser impulsionnel. Cela engendre alors différents phénomènes thermiques induisant la modification des propriétés optiques. Après avoir examiné la réponse optique des métaux nobles, de nanoparticules métalliques, puis de matériaux nanocomposites, nous entreprenons l’étude théorique et expérimentale de leurs propriétés thermo-optiques. Nous démontrons que la RPS y joue un rôle important. Nous développons alors une approche numérique permettant de déterminer la dynamique des températures dans ces matériaux sous excitation laser pulsée. Enfin, nous nous penchons sur l’influence des effets thermiques sur la réponse optique non-linéaire de nanocomposites et leur dynamique de relaxation.
Book Synopsis Etudes théoriques et expérimentales des effets optiques non-linéaires du troisième ordre dans de nouveaux matériaux à conjugaison électronique élevée by : Izabela Fuks
Download or read book Etudes théoriques et expérimentales des effets optiques non-linéaires du troisième ordre dans de nouveaux matériaux à conjugaison électronique élevée written by Izabela Fuks and published by . This book was released on 2003 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail de thèse est consacré aux études théoriques et expérimentales des effets optiques non linéaires du troisième ordre dans de nouveaux matériaux à conjugaison électronique élevée. Ces études concernent en particulier des fullerènes modifiés, des polyènes linéaires ainsi que des composés ramifés [i.e. ramifiés] oligothienylenovinylènes. La partie expérimentale est consacrée à une description des techniques utilisées pour la détermination des propriétés optiques non linéaire. Nous avons démontré une bonne corrélation entre les structures chimiques (type de liaisons, l'influence de la dimensionnalité) des composés étudiés et leur réponse non linéaire du troisième ordre. Un bon accord entre les résultats expérimentaux et les simulations est obtenu. Ce travail présente une étude assez complète sur les propriétés non linéaires des molécules choisies et nouvellement synthétisées. Il s'agit d'une contribution à la fois importante et utile dans le domaine des matériaux fonctionnels. L'originalité de ce travail consiste surtout en un choix original des composés suivant leur potentialité d'application en optique non linéaire telles que mémoires optiques, la commutation tout optique et la limitation optique.
Book Synopsis La technique de Z-scan by : Alain Stephen Mouketou Missono
Download or read book La technique de Z-scan written by Alain Stephen Mouketou Missono and published by . This book was released on 2006 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Réalisation de guides d'ondes pour l'optique non-linéaire by : Jérémie Teyssier
Download or read book Réalisation de guides d'ondes pour l'optique non-linéaire written by Jérémie Teyssier and published by . This book was released on 2004 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Un effort de recherche important concerne le développement de solutions pour la génération de second harmonique dans des guides d'ondes, généralement réalisés par implantation ou par échange d'ions sur des substrats monocristallins optiquement non-linéaires. Dans la première partie de ce travail, nous avons utilisé l'échange de protons pour réaliser des guides d'ondes sur des substrats d'iodate de lithium, matériau optiquement non-linéaire. Des guides d'ondes présentant une atténuation inférieure à 1 dB/cm ont été obtenus et nous avons montré, par une etude combinée en diffraction des rayons X, spectroscopie Raman et m-lines, que la couche guidante était constituée de solution solide Li(1-x)HxIO3. Nous avons également caractérisé la cinétique de l'échange, mettant en évidence des coefficients de diffusion élevés ne permettent pas l'obtention de guides stables dans des conditions standard d'utilisation. Tout en gardant comme objectif la réalisation de guides d'ondes pour l'optique non-linéaire, nous avons abandonné l'utilisation de LiIO3 monocristallin pour l'insérer sous la forme de nanocristaux dans des matrices vitreuses. Ainsi, deux types de nanocomposites ont été étudiés, l'un constitué d'une matrice de silice élaborée par voie sol-gel, I'autre constitué d'une matrice de Laponite, une argile synthétique très bas coût. Pour chacun des composites, une étude structurale a permis de déterminer la cinétique de cristallisation de LiIO3 dont les cristaux ont pu être orientés par l'application d'un champ électrique durant la nucléation. Enfin, pour le composite LiIO3/Laponite, des guides d'ondes ont été élaborés présentant une atténuation de l'ordre de 2 dB/cm. Nous avons mesuré un coefficient non-linéaire effectif de l'ordre de 1.6 pm/V pour un composite dopé à 50% vol. de LiIO3 et un modèle a été proposé pour décrire le comportement optique non-linéaire du matériau. Ce modèle a ensuite été utilisé pour simuler les performances de structures périodiquement orientées.
Book Synopsis Composite Materials by : Jean-Marie Berthelot
Download or read book Composite Materials written by Jean-Marie Berthelot and published by Springer. This book was released on 2013-02-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical engineering, an engineering discipline borne of the needs of the in dustrial revolution, is once again asked to do its substantial share in the call for industrial renewal. The general call is urgent as we face profound issues of produc tivity and competitiveness that require engineering solutions, among others. The Mechanical Engineering Series features graduate texts and research monographs intended to address the need for information in contemporary areas of mechanical engineering. The series is conceived as a comprehensive one that covers a broad range of concentrations important to mechanical engineering graduate education and re search. We are fortunate to have a distinguished roster of consulting editors on the advisory board, each an expert in one of the areas of concentration. The names of the consulting editors are listed on the next page of this volume. The areas of concentration are applied mechanics, biomechanics, computational mechan ics, dynamic systems and control, energetics, mechanics of materials, processing, thermal science, and tribology.
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Book Synopsis An Introduction To Plasmonics by : Olivier Pluchery
Download or read book An Introduction To Plasmonics written by Olivier Pluchery and published by World Scientific. This book was released on 2023-08-28 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is a plasmon? Is it a particle, like a photon or a wave? Plasmonics stands at the frontier of condensed matter physics, which is the world of electrons, optics and of photons. Plasmonics is one of the most active fields in nanophotonics. This book begins by exploring the concepts behind waves, and the electromagnetic description of light when it interacts with metals; it dedicates every chapter thereafter to all aspects of plasmonics. In particular, the surface plasmon polariton wave is explained in full detail, as well as the localized surface plasmon resonance of metallic nanoparticles. The active research area opened by plasmonics, as well as its applications, are also briefly explained, such as advanced biosensing, subwavelength waveguiding, quantum plasmonics, nanoparticle-based cancer therapies, optical nano-antenna and high-efficiency photovoltaic cells.The book is adapted for graduate students and places a special emphasis on providing complete explanations of the fundamental concepts of plasmonics. Further, each of these concepts is illustrated with examples drawn from the most recent scientific literature. Each chapter ends with a set of exercises that will help the reader revise the concepts and go deeper into the world of plasmonics. More than 70 exercises are included.
Book Synopsis Poly(lactic acid) Science and Technology by : Alfonso Jiménez
Download or read book Poly(lactic acid) Science and Technology written by Alfonso Jiménez and published by Royal Society of Chemistry. This book was released on 2015 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the synthesis, characterisation, properties and applications of poly(lactic acid) science and technology covering scientific, ecological, social and economic issues.
Book Synopsis Flexoelectricity in Liquid Crystals by : Agnes Buka
Download or read book Flexoelectricity in Liquid Crystals written by Agnes Buka and published by World Scientific. This book was released on 2013 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.
Download or read book Nitroxides written by Olivier Ouari and published by Royal Society of Chemistry. This book was released on 2021-05-13 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitroxides are versatile small organic molecules possessing a stabilised free radical. With their unpaired electron spin they display a unique reactivity towards various environmental factors, enabling a diverse range of applications. They have uses as synthetic tools, such as catalysts or building blocks; imaging agents and probes in biomedicine and materials science; for medicinal antioxidant applications; and in energy storage. Polynitroxides (polymers bearing pendant nitroxide sidechains) have been used in organic radical batteries, oxidation catalysts and in exchange reactions for constructing complex architectures. Chapters in this book cover the synthesis of nitroxides, EPR studies and magnetic resonance applications, physiochemical studies, and applications including in batteries, imaging and organic synthesis. With contributions from leaders in the field, Nitroxides will be of interest to graduate students and researchers across chemistry, physics, biology and materials science.
Download or read book ZnO Thin Films written by Paolo Mele and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide (ZnO) is an n-type semiconductor with versatile applications such as optical devices in ultraviolet region, piezoelectric transducers, transparent electrode for solar cells and gas sensors. This book "ZnO Thin Films: Properties, Performance and Applications" gives a deep insight in the intriguing science of zinc oxide thin films. It is devoted to cover the most recent advances and reviews the state of the art of ZnO thin films applications involving energy harvesting, microelectronics, magnetic devices, photocatalysis, photovoltaics, optics, thermoelectricity, piezoelectricity, electrochemistry, temperature sensing. It serves as a fundamental information source on the techniques and methodologies involved in zinc oxide thin films growth, characterization, post-deposition plasma treatments and device processing. This book will be invaluable to the experts to consolidate their knowledge and provide insight and inspiration to beginners wishing to learn about zinc oxide thin films.
Book Synopsis Thermal Radiation Heat Transfer: The blackbody, electromagnetic theory, and material properties by : Robert Siegel
Download or read book Thermal Radiation Heat Transfer: The blackbody, electromagnetic theory, and material properties written by Robert Siegel and published by . This book was released on 1968 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Diffusion in Materials - DIMAT 2011 by : Igor Bezverkhyy
Download or read book Diffusion in Materials - DIMAT 2011 written by Igor Bezverkhyy and published by Trans Tech Publications Ltd. This book was released on 2012-04-12 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on Diffusion in Materials (DIMAT) is the benchmark conference series for diffusion in solids. DIMAT 2011 was organized by the University of Bourgogne in association with CNRS, Dijon (France). The conference showcased new results concerning theoretical tools as well as applied research approaches. Diffusion processes affect all types of materials: nanomaterials, materials for energy, metallurgy, glasses and ceramics, but each requires its own numerical tools. Volume is indexed by Thomson Reuters CPCI-S (WoS). This volume comprises most of the contributions presented at DIMAT 2011: 4 plenary lectures delivered by famous high-level scientists plus 88 contributions in the form of keynote lectures, talks and posters.
Book Synopsis Nonlinear Optical Materials by : Jerome V. Moloney
Download or read book Nonlinear Optical Materials written by Jerome V. Moloney and published by Springer Science & Business Media. This book was released on 1998-08-13 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical methods play a significant role in the rapidly growing field of nonlinear optical materials. This volume discusses a number of successful or promising contributions. The overall theme of this volume is twofold: (1) the challenges faced in computing and optimizing nonlinear optical material properties; and (2) the exploitation of these properties in important areas of application. These include the design of optical amplifiers and lasers, as well as novel optical switches. Research topics in this volume include how to exploit the magnetooptic effect, how to work with the nonlinear optical response of materials, how to predict laser-induced breakdown in efficient optical devices, and how to handle electron cloud distortion in femtosecond processes.
Book Synopsis Advanced Composite Materials and Structures by : Mohamed Thariq Hameed Sultan
Download or read book Advanced Composite Materials and Structures written by Mohamed Thariq Hameed Sultan and published by CRC Press. This book was released on 2022-08-31 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book bridges the gap between theoretical concepts and their implementations, especially for the high-performance structures/components related to advanced composite materials. This work focuses on the prediction of various structural responses such as deformations, natural frequencies etc. of advanced composites under complex environments and/or loading conditions. In addition, it discusses micro-mechanical material modeling of various advanced composite materials that involve different structures ranging from basic to advanced, such as beams, flat and curved panels, shells, skewed, corrugated, and other materials, as well as various solution techniques via analytical, semi-analytical, and numerical approaches. This book: Covers micro-mechanical material modeling of advanced composite materials Describes constitutive models of different composite materials and kinematic models of different structural configuration Discusses pertinent analytical, semi-analytical, and numerical techniques Focusses on structural responses relating to deformations, natural frequencies, and critical loads under complex environments Presents actual demonstrations of theoretical concepts as applied to real examples using Ansys APDL scripts This book is aimed at researchers, professionals, and graduate students in mechanical engineering, material science, material engineering, structural engineering, aerospace engineering, and composite materials.
Book Synopsis Nitroxide Spin Labels by : Nickolai Kocherginsky
Download or read book Nitroxide Spin Labels written by Nickolai Kocherginsky and published by CRC Press. This book was released on 1995-05-11 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extending the use of nitroxides as probes into more complex systems such as viable cells and whole animals requires greater knowledge of their interactions in functioning biological systems and appropriate model systems. Nitroxide Spin Labels: Reactions in Biology and Chemistry presents information essential for research in this area. Nitroxide research offers the promise of important new ways of measuring metabolism and will be useful in the diagnosis of important disease categories such as cancer, inflammation, and ischemia.
