Download or read book tude comparative des propri t s de transport non stationnaire dans diff rents semiconducteurs compos s III V written by Catherine Bru-Chevallier and published by . This book was released on 1988 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE DANS LE CAS DES COMPOSES GAAS, INP, GAINAS ET D'UNE HETEROJONCTION GAAS/GAALAS PAR MESURE DE PHOTOCOURANT DANS DES ECHANTILLONS DE DIMENSIONS SUBMICRONIQUES. LES RESULTATS EXPERIMENTAUX SONT EXPLOITES PAR SIMULATION NUMERIQUE PAR UN PROGRAMME MONTE CARLO. ON DECRIT LES PROPRIETES DE LA STRUCTURE DE BANDE, LES CARACTERISTIQUES DE TRANSPORT ELECTRONIQUE STATIONNAIRE ET HORS D'EQUILIBRE

Download or read book Quantum Transport in Semiconductor Nanostrucures written by Renaud Leturcq and published by . This book was released on 2011 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le fil directeur de mes travaux de recherche est l'étude des propriétés électroniques de systèmes de taille nanométrique réalisés dans les semiconducteurs. Leur caractère commun est que, à suffisamment basse température, leur propriétés de transport sont dominées par la nature quantique des électrons. Outre l'intérêt fondamental de l'étude du transport électronique dans la limite quantique, les nouvelles fonctionnalités ouvertes par ces études pourraient avoir des applications dans des domaines tels que la détection et la métrologie, ou comme base pour le traitement quantique de l'information. L'utilisation de telles nanostructures nécessite cependant de mieux comprendre leurs propriétés de transport, notamment concernant le transport cohérent hors équilibre, ou à l'échelle de l'électron ou du spin individuels. Les travaux que j'ai réalisés en post-doctorat à l'ETH Zürich, et que j'ai entamé à l'IEMN, visent à mieux comprendre ces phénomènes. Ils comprennent principalement trois parties, dont les principaux résultats sont détaillés ci-dessous. Peu d'études se sont intéressées aux propriétés des systèmes nanométriques hors équilibre, qui entrent en jeux dans de nombreuses mesures expérimentales, mais qui sont difficiles à prendre en compte dans des modèles théoriques. La mesure d'une boîte quantique à trois terminaux a permis de mettre en évidence expérimentalement la séparation du pic de densité d'état dans le régime Kondo, résultat important pour comprendre le comportement d'un système d'électrons fortement corrélés hors équilibre. Dans un anneau quantique, nous avons observé l'asymétrie en champ magnétique de la conductance non-linéaire, prédite théoriquement pour des systèmes d'électrons en interaction.

Download or read book ETUDE EXPERIMENTALE DES PROPRIETES DE TRANSPORT NON STATIONNAIRE DANS INP PAR PHOTOCONDUCTION written by PATRICE.. DE CARRE and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LE DEVELOPPEMENT DE L'ELECTRONIQUE RAPIDE ET DE L'OPTOELECTRONIQUE EST ASSOCIE A CELUI DES SEMICONDUCTEURS COMPOSES III-V, DONT INP. CE TRAVAIL PORTE SUR L'ETUDE EXPERIMENTALE DES PHENOMENES DE TRANSPORT NON STATIONNAIRE DANS INP, PAR MESURE DE PHOTOCOURANT EN REGIME PERMANENT D'ECLAIREMENT, SUR DES DISPOSITIFS SEMICONDUCTEURS SUBMICRONIQUES DE DIFFERENTES LONGUEURS. L'INTERPRETATION DES RESULTATS FAIT APPEL A DES SIMULATIONS NUMERIQUES DE TYPE MONTE-CARLO. LA STRUCTURE DE BANDE D'INP ET LES MECANISMES D'INTERACTIONS ENTRE ELECTRONS ET RESEAU CRISTALLIN SONT DECRITS ET PERMETTENT D'ANALYSER LES CARACTERISTIQUES DE TRANSPORT ELECTRONIQUE STATIONNAIRE ET NON STATIONNAIRE OBTENUES A L'AIDE DE SIMULATIONS NUMERIQUES. LES CARACTERISTIQUES DE TRANSPORT DANS INP SONT COMPAREES A CELLES OBTENUES DANS GAAS. LA METHODE DE PHOTOCONDUCTION EMPLOYEE PERMET DE S'AFFRANCHIR DES EFFETS GEOMETRIQUES LIES A LA STRUCTURE PLANAIRE DES DISPOSITIFS ET, EN NE MESURANT QUE DES PHOTOCOURANTS FAIBLES DEVANT LE COURANT D'OBSCURITE, D'UNE EVENTUELLE NON-LINEARITE DES CONTACTS. LA VITESSE MOYENNE DES PORTEURS PEUT ALORS ETRE DEDUITE D'UNE MESURE DU PHOTOCOURANT EN REGIME PERMANENT D'ECLAIREMENT LORSQU'UNE BONNE REPRODUCTIBILITE DES CONDITIONS D'ECLAIREMENT EST ASSUREE. LES PHENOMENES DE DIFFRACTION DE LA LUMIERE PAR LA FENTE EPAISSE FORMEE PAR L'ESPACE INTERELECTRODE SONT MIS EN EVIDENCE ET L'ESTIMATION DES COEFFICIENTS DE TRANSMISSION DE LA LUMIERE EST VALIDEE EXPERIMENTALEMENT. LA CARACTERISATION DES ECHANTILLONS FAITE EN OBSCURITE, SOUS ECLAIREMENT ET SOUS CHAMP MAGNETIQUE A PERMIS DE DETERMINER LA MOBILITE DANS LES COUCHES EPITAXIEES ET SOUS LA SURFACE AINSI QUE LE DOPAGE RESIDUEL DES COUCHES. A 300 K ET 77 K, LES CARACTERISTIQUES DONNANT LES VARIATIONS DU PHOTOCOURANT EN FONCTION DU CHAMP ELECTRIQUE APPLIQUE MONTRENT SOUS CERTAINES CONDITIONS EXPERIMENTALES, L'EXISTENCE DU PHENOMENE DE SURVITESSE SUR DES LONGUEURS S

Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Download or read book Experimental Chaos written by Stefano Boccaletti and published by A I P Press. This book was released on 2004-12-14 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 8th Experimental Chaos Conference again demonstrated the broad spectrum of areas where nonlinear dynamics plays an important role, such as circuits, hydrodynamics, optics, chemistry, fracture dynamics, neuroscience, and cognitive science. Additional contributions outline the trends for development and application of concepts and techniques of nonlinear dynamics.

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:

Download or read book Multiscale and Multiresolution Approaches in Turbulence written by Pierre Sagaut and published by World Scientific. This book was released on 2013 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book aims to provide the reader with an updated general presentation of multiscale/multiresolution approaches in turbulent flow simulations. All modern approaches (LES, hybrid RANS/LES, DES, SAS) are discussed and recast in a global comprehensive framework. Both theoretical features and practical implementation details are addressed. Some full scale applications are described, to provide the reader with relevant guidelines to facilitate a future use of these methods.

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.

Download or read book Boundary Layer Theory written by Hermann Schlichting (Deceased) and published by Springer. This book was released on 2016-10-04 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of the near-legendary textbook by Schlichting and revised by Gersten presents a comprehensive overview of boundary-layer theory and its application to all areas of fluid mechanics, with particular emphasis on the flow past bodies (e.g. aircraft aerodynamics). The new edition features an updated reference list and over 100 additional changes throughout the book, reflecting the latest advances on the subject.

Download or read book The Philosophy of Physical Science written by Sir Arthur Eddington and published by BoD – Books on Demand. This book was released on 2021-03-17 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is often said that there is no "philosophy of science", but only the philosophies of certain scientists. But in so far as we recognize an authoritative body of opinion which decides what is and what is not accepted as present-day physics, there is an ascertainable present-day philosophy of physical science. It is the philosophy to which those who follow the accepted practice of science stand committed by their practice. This book contains the substance of the course of lectures which the author Eddington delivered as Tarner Lecturer of Trinity College Cambridge in the Easter Term 1938. The lectures have afforded him an opportunity of developing more fully than in his earlier books the principles of philosophic thought associated with the modern advances of physical science.

Download or read book Quantum Measurement Theory and its Applications written by Kurt Jacobs and published by Cambridge University Press. This book was released on 2014-08-14 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent experimental advances in the control of quantum superconducting circuits, nano-mechanical resonators and photonic crystals has meant that quantum measurement theory is now an indispensable part of the modelling and design of experimental technologies. This book, aimed at graduate students and researchers in physics, gives a thorough introduction to the basic theory of quantum measurement and many of its important modern applications. Measurement and control is explicitly treated in superconducting circuits and optical and opto-mechanical systems, and methods for deriving the Hamiltonians of superconducting circuits are introduced in detail. Further applications covered include feedback control, metrology, open systems and thermal environments, Maxwell's demon, and the quantum-to-classical transition.

Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer. This book was released on 1976 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis· seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) *at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac· tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 20 (thesis year 1975) a total of 10,374 theses titles from 28 Canadian and 239 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. The organization of Volume 20 is identical to that of past years. It consists of theses titles arranged by discipline and by university within each discipline.

Download or read book Markov Processes and Potential Theory written by and published by Academic Press. This book was released on 2011-08-29 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Markov Processes and Potential Theory

Download or read book New Nuclear Data written by and published by . This book was released on 1957 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book Modern Power Systems written by Linda Morand and published by . This book was released on 2016-05-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy efficiency and sustainable technologies are becoming a necessity with the passage of time. This has increased the scope of modern technologies to a large extent. This book elucidates the concepts and innovative models around prospective developments with respect to the modern power systems. The topics included herein like smart grid technologies, sustainable electric power, clean energy, etc. are of utmost significance and bound to provide incredible insights to readers about the construction and working of modern power systems, their efficiency and impact on the environment. This book is most suitable for graduate and post graduate engineering students and research scholars.

Download or read book Laser 50 Years Of Discoveries written by Fabien Bretenaker and published by World Scientific. This book was released on 2014-10-27 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book provides an overview of the principle and applications of lasers enriched with numerous illustrations.Being over fifty years old, lasers continue to amaze us. Their performance characteristics are constantly reaching new limits, and the scope of their applications continues to expand. Yet, it took years of effort by teams of physicists to transform the fundamental notions of Einstein into the first experimental beam of laser light. And history is still going on as fundamental research is now triggered by its remarkable properties.This book addresses every aspects of laser light, from its fundamental principles to its industrial applications, at a level particularly suited for high school teachers, students, and anybody curious about science and technology.