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Etude En Theorie Des Lasers
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Book Synopsis Étude en théorie des lasers by : Arnaud Boulnois
Download or read book Étude en théorie des lasers written by Arnaud Boulnois and published by . This book was released on 1997 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans la seconde partie, nous privilegions l'aspect multimode comme source d'instabilites. Pour cette nouvelle approche, nous utilisons le modele de bloch-maxwell pour un laser multimode et desaccorde en frequence. L'etude complete de ce systeme ne pouvant etre conduite par les methodes habituelles, nous mettons en oeuvre des theories plus originales. La premiere consiste a redefinir l'approximation du laser de classe b afin de faire apparaitre un petit parametre. Puis, par des operations arithmetiques, nous transformons le modele dans le but d'en extraire une solution oscillante particuliere et de determiner son seuil d'existence. Enfin, nous reconstruisons les solutions a partir de ce point de bifurcation a l'aide d'un developpement perturbatif et d'une definition de nouvelles echelles de temps et d'espace.
Download or read book Laser Theory written by Hermann Haken and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, written by one of the pioneers of laser theory, is now considered a classic by many laser physicists. Originally published in the prestigious Encyclopedia of Physics series, it is now being republished in paperback to make it available not only to professors and scientists, but also to students. It presents a thorough treatment of the theory of laser resonators, the quantum theory of coherence, and the quantization of electromagnetic fields. Especial emphasis is placed on the quantum-mechanical treatment of laser light by means of quantum-mechanical Langevin equations, the density matrix equation, and the Fokker-Planck equation. The semiclassical approach and the rate equa tion approach are also presented. The principles underlying these approaches are used to derive the relevant equations, from which, in turn, the various properties of laser light are derived. Preface. The concept of the laser came into existence more than a decade ago when SCHAWLOW and TOWNES showed that the maser principle could be extended to the optical region. Since then this field has developed at an incredible pace which hardly anybody could have foreseen. The laser turned out to be a meeting place for such different disciplines as optics (e. g. spectroscopy). optical pumping, radio engineering, solid state physics, gas discharge physics and many other fields. The underlying structure of the laser theory is rather simple.
Book Synopsis Etudes théorique et expérimentale de la rétroinjection optique sur lasers à solide by : Luc Kervevan
Download or read book Etudes théorique et expérimentale de la rétroinjection optique sur lasers à solide written by Luc Kervevan and published by . This book was released on 2006 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le principal objectif de cette thèse a été de mettre en œuvre des lasers à base de verre phosphate codopé Yb3+:Er3+ pompés par diode afin d’étudier leur comportement lorsqu’ils sont soumis à une rétroinjection optique. Ce type de laser présente, comme principaux avantages par rapport aux autres sources, une grande sensibilité à la rétroinjection, compte tenu des propriétés de l’ion Er3+ favorisant les oscillations de relaxation du laser, et une longueur d’onde d’émission à 1,55 μm qui appartient au domaine de sécurité oculaire. Tout d’abord, nous avons établi pour la première fois les équations d’évolution de l’inversion de population et du champ électrique d’un laser à 3 niveaux (Yb:Er) soumis à un retour optique. Nous avons ensuite réalisé une étude comparative de l’influence du milieu à gain et des paramètres de cavité sur la rétroinjection optique d’un système à 3 niveaux et à 4 niveaux (LNA:Nd). Les lasers, réalisés au laboratoire, ont été mis en œuvre dans des expériences de rétroinjection optique permettant des mesures originales de vitesse et de distance. Avec ces mêmes lasers, des expériences de vibration et de restitution d’un son ont été réalisées avec succès. La troisième partie de la thèse a concerné la mise en œuvre d’un laser bi-fréquence. Un tel laser oscille simultanément sur deux états propres de polarisation orthogonaux dont les fréquences optiques sont légèrement décalées. On peut alors utiliser le battement entre ces deux états propres en rétroinjection optique. Ce type de détection permet une amélioration significative du rapport signal sur bruit obtenu avec une détection homodyne.
Download or read book Lasers written by John Hawkes and published by . This book was released on 1995 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook on lasers is suitable for use in graduate and postgraduate courses. Both the theoretical and practical sides of the subject are covered and the text is organized in such a way that students with little or no knowledge of quantum mechanics can avoid the more theoretical sections and still gain an appreciation of the physics of lasers. The principles of operation of a wide range of laser types are covered.
Download or read book Lasers written by K. Thyagarajan and published by Springer Science & Business Media. This book was released on 2010-09-27 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ever since their invention in 1960, lasers have assumed tremendous importance in the fields of science, engineering and technology because of their use both in basic research and in various technological applications. Lasers: Theory and Applications 2nd Edition will provide a coherent presentation of the basic physics behind the working of the laser along with some of their most important applications. Numerical examples are scattered throughout the book for helping the student gain a better appreciation of the concepts and problems at the end of each chapter and provides the student a better understanding of the basics and help in applying the concepts to practical situations. This book serves as a text in a course on lasers and their applications for students majoring in various disciplines such as Physics, Chemistry and Electrical Engineering.
Download or read book Lasers written by K. Thyagarajan and published by Springer. This book was released on 1981-10-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research on Laser Theory by : Anatoliĭ Nikolaevich Oraevskiĭ
Download or read book Research on Laser Theory written by Anatoliĭ Nikolaevich Oraevskiĭ and published by . This book was released on 1988 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Etude théorique de l'interaction entre un système à 1 ou 2 électrons actifs et un champ laser intense by : Éric Cormier
Download or read book Etude théorique de l'interaction entre un système à 1 ou 2 électrons actifs et un champ laser intense written by Éric Cormier and published by . This book was released on 1994 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOUS PRESENTONS UNE ETUDE DE L'INTERACTION ENTRE UN ATOME ET UN CHAMP LASER INTENSE ET PLUS PARTICULIEREMENT SA MANIFESTATION SOUS FORME DE PROCESSUS MULTIPHOTONIQUES. NOUS DECRIVONS DANS UN PREMIER TEMPS UNE METHODE DE CALCUL DE LA STRUCTURE ATOMIQUE BASEE SUR L'UTILISATION DE FONCTIONS B-SPLINES. NOUS EXPOSONS ENSUITE LES DIFFERENTES THEORIES ADAPTEES A L'ETUDE DE L'IONISATION MULTIPHOTONIQUE A TRAVERS DEUX APPROCHES: UN TRAITEMENT EN THEORIE DES PERTURBATIONS ET UN TRAITEMENT NON PERTURBATIF DEPENDANT DU TEMPS. CHACUNE DE CES THEORIES EST ILLUSTREE DANS L'APPLICATION A UN CAS CONCRET
Book Synopsis Generalized Lorenz-Mie Theories by : Gerard Gouesbet
Download or read book Generalized Lorenz-Mie Theories written by Gerard Gouesbet and published by Springer Science & Business Media. This book was released on 2011-02-08 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lorenz-Mie theory, describing the interaction between a homogeneous sphere and an electromagnetic plane wave, is likely to be one of the most famous theories in light scattering. But, with the advent of lasers and their increasing development in various fields, it has become too old-fashioned to meet most of the modern requisites. The book deals with generalized Lorenz-Mie theories when the illuminating beam is an electromagnetic arbitrary shaped beam, relying on the method of separation of variables. A particular emphasis is stressed on the case of the homogeneous sphere but other regular particles are considered too. An extensive discussion of the methods available to the evaluation of beam shape coefficients describing the illuminating beam is provided, and several methods are discussed. Applications concern many fields such as optical particle sizing and, more generally, optical particle characterization, morphology-dependent resonances, or mechanical effects of light for optical trapping, optical tweezers and optical stretchers. Various computer programs relevant to the contents of the book are furthermore provided.
Book Synopsis An Introduction to Lasers Theory and Applications by : M N Avadhanulu
Download or read book An Introduction to Lasers Theory and Applications written by M N Avadhanulu and published by S. Chand Publishing. This book was released on 2001 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic Theory | Types Of Lasers | Laser Beam Characteristics | Techniues For Control Of Laser Output| Applications Of Lasers
Book Synopsis Generalized Lorenz-Mie Theories by : Gérard Gouesbet
Download or read book Generalized Lorenz-Mie Theories written by Gérard Gouesbet and published by Springer. This book was released on 2017-02-22 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores generalized Lorenz–Mie theories when the illuminating beam is an electromagnetic arbitrary shaped beam relying on the method of separation of variables. The new edition includes an additional chapter covering the latest advances in both research and applications, which are highly relevant for readers. Although it particularly focuses on the homogeneous sphere, the book also considers other regular particles. It discusses in detail the methods available for evaluating beam shape coefficients describing the illuminating beam. In addition it features applications used in many fields such as optical particle sizing and, more generally, optical particle characterization, morphology-dependent resonances and the mechanical effects of light for optical trapping, optical tweezers and optical stretchers. Furthermore, it provides various computer programs relevant to the content.
Book Synopsis Principles of Lasers by : Orazio Svelto
Download or read book Principles of Lasers written by Orazio Svelto and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third edition, motivated by the numerous and significant developments in the laser field since the publication of the second edition in 1982, is a substantially revised version of the previous edition. The basic philosophy has, however, remained the same, namely, to provide a broad and unified descrip tion of laser behavior at the simplest level that is compatible with a correct physical understanding. The basic organization of the book has also remained the same. The book is therefore aimed at both classroom teaching and self-study by students in electrical engineering, physics, and chemistry who have an interest in understanding the principles of laser operation. The major additions to this edition are the following: 1. New sections dealing with laser types, in particular x-ray lasers and new solid-state lasers, including alexandrite devices, and a greatly extended description of semiconductor lasers. 2. A more extended treatment of laser mode-locking, including new sections on cavity dumping and pulse compression. 3. A more extended and greatly simplified description of the coherence and statistical properties of laser light as opposed to those of conven tional light. 4. A greatly extended discussion of the physics of gas discharges. Other important additions include a discussion of some topics from conven tional optics (e.g., ray matrix methods, Fabry-Perot interferometers, and multilayer dielectric mirrors), Gaussian beam propagation (e.g., the ABeD law), and the theory of relaxation oscillations and active mode-locking.
Book Synopsis Pompage optique avec un laser by : Martial Ducloy
Download or read book Pompage optique avec un laser written by Martial Ducloy and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Theory written by H.. Haken and published by . This book was released on 1970 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lasers and Masers written by and published by . This book was released on 1966 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lasers written by K. Thyagarajan and published by Springer. This book was released on 1981-10 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Theory written by Frank S. Barnes and published by . This book was released on 1972 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
