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Elaboration Et Caracterisation De Fibres Cristallines De Nouveaux Materiaux Pour La Conversion De Frequence Dans Le Domaine V Uv Par La Technique Micro Pulling Down
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Author :North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development Publisher : ISBN 13 :9789283600046 Total Pages : pages Book Rating :4.6/5 ( download)
Book Synopsis AGARD Conference Proceedings by : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
Download or read book AGARD Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Élaboration et caractérisation de fibres cristallines de nouveaux matériaux pour la conversion de fréquence dans le domaine V-UV par la technique micro-pulling down by : Farah Assi
Download or read book Élaboration et caractérisation de fibres cristallines de nouveaux matériaux pour la conversion de fréquence dans le domaine V-UV par la technique micro-pulling down written by Farah Assi and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'intérêt des systèmes laser UV compacts à solide ne cesse de s'accroître du fait de leurs nombreuses applications dans différents domaines : stockage optique d'information, micro-usinage, médecine, biologie, science des matériaux ... Cependant, dans les cristaux de type oxyde, l'obtention d'une lumière laser UV ne peut se faire que par conversion de fréquences d'un laser émettant dans le domaine infra-rouge. Dans ces conditions, les efforts de recherche s'orientent vers des cristaux à base de borates du fait de leurs performances, de leur transparence dans l'ultraviolet et de leur résistance à l'endommagement laser. Dans ce cadre, nous avons étudié trois matériaux à base de borate : Bi2ZnB2O7 (BZBO), LaBGeO5 (LBGO) et BaCaBO3F (BCBF). Des fibres cristallines de borate de zinc et bismuth BZBO ont été élaborées par la technique de la micro-goutte pendante dans différentes conditions afin de tenter de résoudre le problème de la coloration orange-rouge des fibres obtenues lors de travaux antérieurs. La croissance directe des fibres de LBGO à partir du liquide s'est révélée pratiquement impossible à cause de sa viscosité trop importante. La recherche d'un flux a donc été entreprise afin de diminuer la viscosité et permettre d'obtenir des cristaux de bonne qualité et de dimensions exploitables. Pour cela, le diagramme de phases LBGO-LiF a été étudié ainsi qu'une partie de la coupe isopléthique La2O3-LaBGeO5 dans le système ternaire La2O3-B2O3-GeO2 afin d'étudier les possibilités de « self flux ». Le tirage des fibres BCBF étant très difficile, la technique de la micro-goutte pendante n'est pas une méthode appropriée, dans sa version actuelle, pour la croissance de ce matériau.
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 Frequency and Time by : P. Kartaschoff
Download or read book Frequency and Time written by P. Kartaschoff and published by . This book was released on 1978 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CP Violation written by Gustavo C. Branco and published by Oxford University Press. This book was released on 1999 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: The violation of charge-conjugation and parity symmetries is a leading area of research in particle and nuclear physics, with important implications for understanding the generation of matter in the universe. This book provides a self-contained introduction and is designed to bring beginning researchers to the forefront of the field.
Book Synopsis Cathodoluminescence characterization study of point defects in silica-based materials by : Imene Reghioua
Download or read book Cathodoluminescence characterization study of point defects in silica-based materials written by Imene Reghioua and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'utilisation récente des fibres optiques (FOs) à base de silice dans des environnements extrêmes, a incité les chercheurs à accélérer leurs études de vulnérabilité. De tels défis sont fortement liés à la bonne compréhension des effets à la fois macroscopiques et microscopiques des différents types de radiations sur la réponse des FOs. Cette thèse de doctorat présente une étude complémentaire aux études précédemment menées sur les différents défauts ponctuels dans les FOs à base de silice par Cathodoluminescence (CL). Cette technique offre la possibilité de détecter les centres luminescents mais aussi de suivre leurs distributions spatiales, leurs cinétiques de création et de guérison en fonction de l'irradiation électronique. Dans ce manuscrit, nous introduisons tout d'abord un résumé des connaissances actuelles sur les défauts liés à la silice pure et différemment dopée.Les détails de notre procédure expérimentale sont discutés dans le 2ème chapitre où nous montrons que les doses déposées lors des mesures CL sont très importantes. Dans le 3ème chapitre nous présentons une étude systématique de la réponse en CL des différentes classes de FOs, dans lesquelles différentes bandes d'émission sont discutées. Le 4ème chapitre traite l'impact d'une variation des conditions d'irradiation électronique sur les centres GLPC, l'un des défauts liés au Ge les plus importants. Enfin, dans le 5ème chapitre, nous avons montré la possibilité de produire des nanoparticules à base de silice par ablation laser, et la capacité de la technique CL de caractériser ce type de matériaux, ce qui ouvre la porte à d'autres utilisations de cette technique pour la caractérisation de nanoparticules.
Book Synopsis Experimental Techniques in Nuclear Physics by : Dorin N. Poenaru
Download or read book Experimental Techniques in Nuclear Physics written by Dorin N. Poenaru and published by Walter de Gruyter. This book was released on 2011-09-12 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Models written by Walter Greiner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical physics has become a many-faceted science. For the young student it is difficult enough to cope with the overwhelming amount of new scientific material that has to be learned, let alone to obtain an overview of the entire field, which ranges from mechanics through electrodynamics, quantum mechanics, field theory, nuclear and heavy-ion science, statistical mechanics, thermodynamics, and solid state theory to elementary-particle physics. And this knowledge should be acquired in just 8-10 semesters during which, in addition, a Diploma or Master's thesis has to be worked on or examinations prepared for. All this can be achieved only if the university teachers help to introduce the student to the new disciplines as early on as possible, in order to create interest and excitement that in turn set free essential new energy. Naturally, all inessential material must simply be eliminated. At the Johann Wolfgang Goethe University in Frankfurt we therefore confront the student with theoretical physics immediately in the first semester. Theoretical Mechanics I and II, Electrodynamics, and Quantum Mechanics I - an Introduction are the basic courses during the first two years. These lectures are supplemented with many mathematical explanations and much support material. After the fourth semester of studies, graduate work begins and Quantum Mechanics II - Symme tries, Statistical Mechanics and Thermodynamics, Relativistic Quantum Mechanics, Quantum Electrodynamics, the Gauge Theory of Weak Interactions, and Quantum Chromodynamics are obligatory.
Book Synopsis Quarks, Baryons and Chiral Symmetry by : Atsushi Hosaka
Download or read book Quarks, Baryons and Chiral Symmetry written by Atsushi Hosaka and published by World Scientific. This book was released on 2001 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ch. 1. Ingredients of the standard model. 1.1. Strong interaction - QCD. 1.2. Electroweak theory. 1.3. CKM mass matrix -- ch. 2. Symmetries and wave functions. 2.1. Why is symmetry important? 2.2. Symmetry current. 2.3. SU(2). 2.4. SU(3). 2.5. Multi-particle states. 2.6. Product-states. 2.7. Quark model wave functions -- ch. 3. Chiral symmetry. 3.1. Lorentz group and chiral fermions. 3.2. Chiral group. 3.3. Spontaneous breaking of chiral symmetry -- ch. 4. The sigma model. 4.1. Linear sigma model. 4.2. Non-linear sigma model. 4.3. Fermion field -- ch. 5. Chiral bag model. 5.1. The MIT bag model. 5.2. The little bag model. 5.3. The Skyrme model. 5.4. The chiral bag model. 5.5. Chiral casimir effects. 5.6. The edgehog solution -- ch. 6. Nucleon properties. 6.1. Semiclassical method. 6.2. Isospin rotation of the hedgehog solution. 6.3. Axial properties. 6.4. Non-rigid quantization of the skyrmion. 6.5. Electromagnetic properties. 6.6. Chiral bag with vector mesons -- ch. 7. Large-Nc baryons. 7.1. Introduction. 7.2. General counting rules. 7.3. Counting rules for solitons. 7.4. Large-Nc algebra for baryons. 7.5. Finite Nc. 7.6. Other representations and gA -- ch. 8. Excited baryons. 8.1. Systematics in baryon masses. 8.2. Quarks in a deformed oscillator potential. 8.3. Electromagnetic transitions.
Book Synopsis Heavy Quark Physics by : Aneesh V. Manohar
Download or read book Heavy Quark Physics written by Aneesh V. Manohar and published by Cambridge University Press. This book was released on 2023-07-31 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particle Physics by : Brian R. Martin
Download or read book Particle Physics written by Brian R. Martin and published by John Wiley & Sons. This book was released on 2013-03-22 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential introduction to particle physics, with coverage ranging from the basics through to the very latest developments, in an accessible and carefully structured text. Particle Physics: Third Edition is a revision of a highly regarded introduction to particle physics. In its two previous editions this book has proved to be an accessible and balanced introduction to modern particle physics, suitable for those students needed a more comprehensive introduction to the subject than provided by the ‘compendium’ style physics books. In the Third Edition the standard model of particle physics is carefully developed whilst unnecessary mathematical formalism is avoided where possible. Emphasis is placed on the interpretation of experimental data in terms of the basic properties of quarks and leptons. One of the major developments of the past decade has been the establishing of the existence of neutrino oscillations. This will have a profound effect on the plans of experimentalists. This latest edition brings the text fully up-to-date, and includes new sections on neutrino physics, as well as expanded coverage of detectors, such as the LHC detector. End of chapter problems with a full set of hints for their solutions provided at the end of the book. An accessible and carefully structured introduction to this demanding subject. Includes more advanced material in optional ‘starred’ sections. Coverage of the foundations of the subject, as well as the very latest developments.
Book Synopsis Photonic Entanglement in Optical Fibers by : Hugues de Riedmatten
Download or read book Photonic Entanglement in Optical Fibers written by Hugues de Riedmatten and published by . This book was released on 2004 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse s'inscrit dans le cadre des recherches expérimentales en communication quantique. Différents aspects de l'intrication photonique optimisée pour la transmission dans des fibres optiques ont été étudiés. Une grande partie de la thèse est dédiée à la réalisation d'expériences démontrant le principe de la téléportation quantique sur de grandes distances dans des fibres optiques. Une autre partie concerne l'exploration de l'intrication dans des espaces de Hilbert de haute dimension. Une expérience permettant d'intriquer des photons en dimension arbitraire a été proposée et réalisée. Une troisième partie étudie la physique des états à 4 photons créés par conversion paramétrique dans un cristal non-linéaire. Finalement, deux autres contributions reliées à ce domaine ont été présentées, concernant la génération de paires de photons dans un guide d'onde intégré dans un substrat de niobate de lithium polarisé périodiquement et une application du comptage de photons en métrologie des composants optiques fibrés.
Book Synopsis The Physics of Particle Detectors by : Dan Green
Download or read book The Physics of Particle Detectors written by Dan Green and published by Cambridge University Press. This book was released on 2000-08-15 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides a comprehensive introduction to the physical principles and design of particle detectors, covering all major detector types in use today. Emphasis is placed on explaining the physical principles behind particle detection, showing how those principles are best utilised in real detectors. The book will be of interest and value to undergraduates, graduates and researchers in both particle and nuclear physics. Exercises and detailed further reading lists are included.
Book Synopsis Gauge Theory of Elementary Particle Physics by : Ta-Pei Cheng
Download or read book Gauge Theory of Elementary Particle Physics written by Ta-Pei Cheng and published by Oxford University Press. This book was released on 1994-08-02 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a practical introduction to the principal ideas in gauge theory and their applications to elementary particle physics. It explains technique and methodology with simple exposition backed up by many illustrative examples. Derivations, some of well known results, are presented in sufficient detail to make the text accessible to readers entering the field for the first time. The book focuses on the strong interaction theory of quantum chromodynamics and the electroweak interaction theory of Glashow, Weinberg, and Salam, as well as the grand unification theory, exemplified by the simplest SU(5) model. Not intended as an exhaustive survey, the book nevertheless provides the general background necessary for a serious student who wishes to specialize in the field of elementary particle theory. Physicists with an interest in general aspects of gauge theory will also find the book highly useful.
Book Synopsis First Principles of Cosmology by : Eric V. Linder
Download or read book First Principles of Cosmology written by Eric V. Linder and published by Prentice Hall. This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to cosmology, this text has an emphasis on the basic principles of the subject. It seeks to explain the application of mechanics, thermodynamics and particle physics to questions on the universe as a whole. The volume also explores: general equations of state; unifying the treatment of dust; radiation; cosmological constant, or exotic components; and the treatment of inhomogeneities (clumpy universe) and their effects on observations.
Book Synopsis Dynamics of the Standard Model by : John F. Donoghue
Download or read book Dynamics of the Standard Model written by John F. Donoghue and published by Cambridge University Press. This book was released on 2023-01-31 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2014 edition, now OA, provides a detailed and practical account of the Standard Model of particle physics.
Book Synopsis Introduction to Nuclear Reactions by : C.A. Bertulani
Download or read book Introduction to Nuclear Reactions written by C.A. Bertulani and published by CRC Press. This book was released on 2019-01-04 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until the publication of Introduction to Nuclear Reactions, an introductory reference on nonrelativistic nuclear reactions had been unavailable. Providing a concise overview of nuclear reactions, this reference discusses the main formalisms, ranging from basic laws to the final formulae used to calculate measurable quantities. Well known in their fields, the authors begin with a discussion of scattering theory followed by a study of its applications to specific nuclear reactions. Early chapters give a framework of scattering theory that can be easily understood by the novice. These chapters also serve as an introduction to the underlying physical ideas. The largest section of the book comprises the physical models that have been developed to account for the various aspects of nuclear reaction phenomena. The final chapters survey applications of the eikonal wavefunction to nuclear reactions as well as examine the important branch of nuclear transport equations. By combining a thorough theoretical approach with applications to recent experimental data, Introduction to Nuclear Reactions helps you understand the results of experimental measurements rather than describe how they are made. A clear treatment of the topics and coherent organization make this information understandable to students and professionals with a solid foundation in physics as well as to those with a more general science and technology background.
