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Miroirs Et Reseaux Plasmas En Champs Lasers Ultra Intenses
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Book Synopsis Miroirs et réseaux plasmas en champs lasers ultra-intenses by : Adrien Leblanc
Download or read book Miroirs et réseaux plasmas en champs lasers ultra-intenses written by Adrien Leblanc and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lors de la focalisation d'un laser femtoseconde ultra-intense [I>1016W/cm2] sur une cible solide, dès le début de l'impulsion le champ laser est suffisant pour totalement ioniser la surface de la cible. Le reste de l'impulsion est ensuite réfléchi dans la direction spéculaire par le plasma dense ainsi créé : c'est un miroir plasma. Le champ laser ultra-intense peut accélérer les électrons au sein du plasma à des vitesses relativistes. Certains sont éjectés vers le vide et ces miroirs plasmas sont ainsi des sources de faisceaux d'électrons énergétiques. De plus, ils rayonnent dans l'extrême ultra-violet (XUV) à chaque période laser, ce qui se traduit par de la génération d'harmoniques d'ordre élevé de la pulsation laser. L'objectif de cette thèse est de mieux comprendre l'interaction laser-plasma sur miroirs plasmas à l'aide de la caractérisation de ces deux observables physiques qui en sont issues : les faisceaux d'électrons relativistes et les faisceaux d'harmoniques d'ordre élevé. Une première partie traite de la mesure des faisceaux harmoniques. Du fait des conditions physiques extrêmes d'interaction, la détection ne peut se faire qu'à une distance macroscopique de la cible. Ainsi la caractérisation des propriétés angulaires de ces faisceaux (réalisée en fonction des conditions d'interaction au cours de travaux précédents) ne fournit que des informations partielles sur l'interaction en elle-même. La ptychographie, une technique de mesure par diffraction cohérente où une sonde est diffractée par un objet, est ici transposée à la génération d'harmoniques sur miroirs plasmas grâce à la micro-structuration optique du plasma à la surface de la cible. Les champs sources harmoniques sont ainsi reconstruits en amplitude et en phase spatiales directement dans le plan cible. Grâce à ces mesures dans différentes conditions d'interaction, des modèles théoriques analytiques d'interaction en régime non relativiste [I1018W/cm2] et relativiste [I1018W/cm2] développés précédemment sont validés expérimentalement. Une seconde partie de cette thèse est consacrée à l'étude expérimentale des propriétés angulaires et en énergie des faisceaux d'électrons relativistes issus des miroirs plasmas. Une étude théorique et numérique, permet de prouver que ces mesures sont la première observation claire de l'accélération d'électrons relativistes par laser dans le vide (VLA). Enfin, l'étude simultanée des efficacités de génération des faisceaux d'électrons et d'harmoniques montre une corrélation nette entre les deux processus en régime relativiste.
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 General Relativity and Gravitational Waves by : Joseph Weber
Download or read book General Relativity and Gravitational Waves written by Joseph Weber and published by Courier Corporation. This book was released on 2004-01-01 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: An internationally famous physicist and electrical engineer, the author of this text was a pioneer in the investigation of gravitational waves. Joseph Weber's General Relativity and Gravitational Waves offers a classic treatment of the subject. Appropriate for upper-level undergraduates and graduate students, this text remains ever relevant. Brief but thorough in its introduction to the foundations of general relativity, it also examines the elements of Riemannian geometry and tensor calculus applicable to this field. Approximately a quarter of the contents explores theoretical and experimental aspects of gravitational radiation. The final chapter focuses on selected topics related to general relativity, including the equations of motion, unified field theories, Friedman's solution of the cosmological problem, and the Hamiltonian formulation of general relativity. Exercises. Index.
Book Synopsis Quantum Mechanics, Volume 3 by : Claude Cohen-Tannoudji
Download or read book Quantum Mechanics, Volume 3 written by Claude Cohen-Tannoudji and published by John Wiley & Sons. This book was released on 2019-12-16 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new, third volume of Cohen-Tannoudji's groundbreaking textbook covers advanced topics of quantum mechanics such as uncorrelated and correlated identical particles, the quantum theory of the electromagnetic field, absorption, emission and scattering of photons by atoms, and quantum entanglement. Written in a didactically unrivalled manner, the textbook explains the fundamental concepts in seven chapters which are elaborated in accompanying complements that provide more detailed discussions, examples and applications. * Completing the success story: the third and final volume of the quantum mechanics textbook written by 1997 Nobel laureate Claude Cohen-Tannoudji and his colleagues Bernard Diu and Franck Laloë * As easily comprehensible as possible: all steps of the physical background and its mathematical representation are spelled out explicitly * Comprehensive: in addition to the fundamentals themselves, the books comes with a wealth of elaborately explained examples and applications Claude Cohen-Tannoudji was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris where he also studied and received his PhD in 1962. In 1973 he became Professor of atomic and molecular physics at the Collège des France. His main research interests were optical pumping, quantum optics and atom-photon interactions. In 1997, Claude Cohen-Tannoudji, together with Steven Chu and William D. Phillips, was awarded the Nobel Prize in Physics for his research on laser cooling and trapping of neutral atoms. Bernard Diu was Professor at the Denis Diderot University (Paris VII). He was engaged in research at the Laboratory of Theoretical Physics and High Energy where his focus was on strong interactions physics and statistical mechanics. Franck Laloë was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris. His first assignment was with the University of Paris VI before he was appointed to the CNRS, the French National Research Center. His research was focused on optical pumping, statistical mechanics of quantum gases, musical acoustics and the foundations of quantum mechanics.
Book Synopsis Diffractive Optics for Virtual Reality Displays by : Tapani Levola
Download or read book Diffractive Optics for Virtual Reality Displays written by Tapani Levola and published by . This book was released on 2005 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Theory of Ionization of Gases by Collision by : Sir John Townsend
Download or read book The Theory of Ionization of Gases by Collision written by Sir John Townsend and published by . This book was released on 1910 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guide to Nuclear Power Cost Evaluation: Equipment costs by : Kaiser Engineers
Download or read book Guide to Nuclear Power Cost Evaluation: Equipment costs written by Kaiser Engineers and published by . This book was released on 1962 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Organic Solid-State Lasers by : Sébastien Forget
Download or read book Organic Solid-State Lasers written by Sébastien Forget and published by Springer. This book was released on 2013-07-03 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic lasers are broadly tunable coherent sources, potentially compact, convenient and manufactured at low-costs. Appeared in the mid 60’s as solid-state alternatives for liquid dye lasers, they recently gained a new dimension after the demonstration of organic semiconductor lasers in the 90's. More recently, new perspectives appeared at the nanoscale, with organic polariton and surface plasmon lasers. After a brief reminder to laser physics, a first chapter exposes what makes organic solid-state organic lasers specific. The laser architectures used in organic lasers are then reviewed, with a state-of-the-art review of the performances of devices with regard to output power, threshold, lifetime, beam quality etc. A survey of the recent trends in the field is given, highlighting the latest developments with a special focus on the challenges remaining for achieving direct electrical pumping of organic semiconductor lasers. A last chapter covers the applications of organic solid-state lasers.
Book Synopsis The Cinematic Body by : Steven Shaviro
Download or read book The Cinematic Body written by Steven Shaviro and published by U of Minnesota Press. This book was released on 1994 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: A radical approach to film viewing
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.
Book Synopsis Light Filaments by : Jean-Claude Diels
Download or read book Light Filaments written by Jean-Claude Diels and published by IET. This book was released on 2022 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume starts with tutorials about the science of filamentation before presenting in-depth chapters on the latest research, technologies and applications. It cover wide aspects of light filaments considering various mediums of propagation, with structured or single filaments, and filaments of different colours, as well as combined filaments. It also includes a wide range of applications from strong field ionisation and molecular properties to laser development and beam shaping, THz, lasing in air and supercontinuum generation.
Book Synopsis Signal Treatment and Signal Analysis in NMR by : D.N. Rutledge
Download or read book Signal Treatment and Signal Analysis in NMR written by D.N. Rutledge and published by Elsevier. This book was released on 1996-06-10 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: Signal analysis and signal treatment are integral parts of all types of Nuclear Magnetic Resonance. In the last ten years, much has been achieved in the development of dimensional spectra. At the same time new NMR techniques such as NMR Imaging and multidimensional spectroscopy have appeared, requiring entirely new methods of signal analysis. Up until now, most NMR texts and reference books limited their presentation of signal processing to a short introduction to the principles of the Fourier Transform, signal convolution, apodisation and noise reduction. To understand the mathematics of the newer signal processing techniques, it was necessary to go back to the primary references in NMR, chemometrics and mathematics journals. The objective of this book is to fill this void by presenting, in a single volume, both the theory and applications of most of these new techniques to Time-Domain, Frequency-Domain and Space-Domain NMR signals. Details are provided on many of the algorithms used and a companion CD-ROM is also included which contains some of the computer programs, either as source code or in executable form. Although it is aimed primarily at NMR users in the medical, industrial and academic fields, it should also interest chemometricians and programmers working with other techniques.
Book Synopsis Dictionnaire des termes de médecine by : Henry Eugène de Méric
Download or read book Dictionnaire des termes de médecine written by Henry Eugène de Méric and published by . This book was released on 1899 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cosmic Impressions by : Walter Thirring
Download or read book Cosmic Impressions written by Walter Thirring and published by Templeton Foundation Press. This book was released on 2007-05-01 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Walter Thirring is an internationally renowned scientist who took part in and worked among those involved in many of the scientific developments of the twentieth century. His book, about the knowledge of the world as illuminated by twentieth century science, was originally published in German. This is the first English translation and is a book that is easily accessible to readers of popular science books and magazines. Professor Thirring starts with cosmology as he examines scientific questions and theories concerning the intricacy of nature and the universe. He branches into an exposition of chaos and its connection to the macroscopic world, as well as to life sciences, touching on such diverse related subjects as the structure of the water molecule. He speaks of advances with which he was personally involved, and offers priceless vignettes of great scientists with whom he exchanged discussions, including Albert Einstein, Werner Heisenberg, Erwin Schrödinger, and Wolfgang Pauli. His study of scientific theory and the intricacy of nature and the universe illuminates his argument for the role of a Creator. "Reflections on the creation of the universe lead to reflections about the creator," he writes. And arguing against atheism, he points out: “When we are moved by a fantastic building, a cathedral or a mosque and have finally realized what is behind the glorious proportions, who would then say, ‘Now we don't need the architect anymore. There might not even be one, that could all just be the random product of circumstance.’” Furthermore, in making humankind special in his creation, the Creator gave us the responsibility of seeking an understanding of creation and protecting it. Tackling complex issues in science and religion, Professor Thirring presents a compelling argument for their synthesis. His tenure and influence in the scientific field make this argument even more compelling.
Book Synopsis The Early Development of Electron Lenses and Electron Microscopy by : Ernst Ruska
Download or read book The Early Development of Electron Lenses and Electron Microscopy written by Ernst Ruska and published by . This book was released on 1980 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Invasive Species in the Pacific by : Greg Sherley
Download or read book Invasive Species in the Pacific written by Greg Sherley and published by . This book was released on 2000 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beacons Beyond written by and published by . This book was released on 2011-12-16 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
