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Wave propagation and group velocity.

Wave Propagation and Group Velocity contains papers on group velocity which were published during the First World War and are missing in many libraries. It introduces three different definitions of velocities: the group velocity of Lord Rayleigh, the signal velocity of Sommerfeld, and the velocity o...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Brillouin, L�eon, 1889-1969
Formato: Electrónico eBook
Idioma:Inglés
Publicado: New York : Academic Press, 1960.
Colección:Pure and applied physics ; v. 8.
Temas:
Acceso en línea:Texto completo
Texto completo

MARC

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100 1 |a Brillouin, L�eon,  |d 1889-1969. 
245 1 0 |a Wave propagation and group velocity. 
260 |a New York :  |b Academic Press,  |c 1960. 
300 |a 1 online resource (154 pages) :  |b illustrations 
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490 1 |a Pure and applied physics ;  |v v. 8 
504 |a Includes bibliographical references. 
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505 0 |6 880-01  |a Front Cover; Wave Propagation and Group Velocity; Copyright Page; FOREWORD; PREFACE; Table of Contents; CHAPTER I. INTRODUCTION; 1. Phase Velocity and Group Velocity; 2. Examples and Discussion: Dispersive Media; 3. Groups and Signals; 4. Signal Velocity, First Attempts; 5. Actual Measurements of the Velocity of Light; 6. Havelock's Pamphlet; 7. General Remarks; CHAPTER II. ABOUT THE PROPAGATION OF LIGHT IN DISPERSIVE MEDIA; 1. Introduction and Results; 2. The Incident Signal; 3. General Solution of the Problem; 4. Discussion of tlie Obtained Solution. 
505 8 |a 1. Definitions: Role of a Dielectric Coefficient Depending on Density and Temperature2. Dependence of the Dielectric Coefficient on Frequency; Evaluation of the Electrical Energy; 3. Waves; Phase Velocity; Energy Density of a Plane Wave; 4. The Group Velocity U; 5. Velocity of Energy Transport U1; 6. Signal Velocity, S; 7. The Forerunners; 8. Summary of the Most Important Results; Generalization to Other Types of Waves; Literature; CHAPTER V. WAVE PROPAGATION IN A DISPERSIVE DIELECTRIC; 1. Formula of Lorentz-Lorenz; 2. Material Medium of Low Density, Consisting of Harmonic Oscillators. 
505 8 |a 3. Propagation of the Waves in the Medium4. The Velocities U, U1, and S in the Medium; 5. The Forerunners; 6. A Real Transparent Medium, Having Several Absorption Bands; 7. Quantized Atomic States, Kramers' Dispersion Formula; 8. The Relation Between the Problenn Treated and the Analogous Technical Problems; Literature; CHAPTER VI. WAVES IN WAVE GUIDES A N D OTHER EXAMPLES; 1. Guided Waves; 2. Acoustic Waves; 3. Rectangular Tube; 4. Physical Significance of Guided Waves; 5. Electromagnetic Guided Waves; 6. Some Other Typical Examples; AUTHOR INDEX; BOOKS PUBLISHED BY L . BRILLOUIN. 
520 |a Wave Propagation and Group Velocity contains papers on group velocity which were published during the First World War and are missing in many libraries. It introduces three different definitions of velocities: the group velocity of Lord Rayleigh, the signal velocity of Sommerfeld, and the velocity of energy transfer, which yields the rate of energy flow through a continuous wave and is strongly related to the characteristic impedance. These three velocities are identical for nonabsorbing media, but they differ considerably in an absorption band. Some examples are discussed in the last chapter. 
650 0 |a Wave mechanics. 
650 0 |a Wave-motion, Theory of. 
650 4 |a Wave mechanics. 
650 4 |a Wave-motion, Theory of. 
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776 0 8 |i Print version:  |a Brillouin, L�eon, 1889-1969.  |t Wave propagation and group velocity.  |d New York, Academic Press, 1960  |w (DLC) 59013829  |w (OCoLC)537250 
830 0 |a Pure and applied physics ;  |v v. 8. 
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880 8 |6 505-01/(S  |a 5. Uniqueness of the Solution and Boundary Conditions6. The Forerunners; CHAPTER III. ABOUT THE PROPAGATION OF LIGHT IN DISPERSIVE MEDIA; 1. How to Use the Saddle-Point Method of Integration; 2. Examination of the Complex η Plane; 3. Location of the Saddle Points; 4. Successive Motion of the Saddle Points as a Function of Time. Choice of the Path of Integration; 5. The Forerunners; 6. Signal Velocity; 7. Summary of Results; 8. The Method of the Stationary Phase Compared to the Saddle Point Method; CHAPTER IV. PROPAGATION OF ELECTROMAGNETIC WAVES IN MATERIAL MEDIA.