Download or read book The Propagation of Disturbances in Dispersive Media written by Sir Thomas Havelock and published by . This book was released on 1914 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present tract deals with the manner in which a limited initial disturbance spreads out into a dispersive medium and with allied problems - p. 1.

Download or read book Wave Propagation and Group Velocity written by Léon Brillouin and published by Academic Press. This book was released on 2013-10-22 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 dealing with guided waves, and many other cases of application of these definitions are quoted. These problems have come again into the foreground, in connection with the propagation of radio signals and radar. Reflection in the Heaviside layers requires a real knowledge of all these different definitions. Group velocity also plays a very important role in wave mechanics and corresponds to the speed of a particle. The present book should be very useful to physicists and radio engineers and should give them a good basis for new discussions and applications.

Download or read book Wave Propagation in a Dispersive Medium written by Paul R. McIsaac and published by . This book was released on 1966 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report examines the consequences of temperal and spatial dispersion for the power flow and boundary conditions for electromagnetic wave propagation in dispersive media. The theory is applied to propagation in electron streams and in ferrites. (Author).

Download or read book Electromagnetic Wave Propagation in a Dispersive Periodic Medium written by James R. Matthes and published by . This book was released on 1968 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Propagation of electromagnetic waves in a cold, collisionless, isotropic plasma with a sinusoidally stratified electron density is investigated. The Hill determinant method is used to obtain the field solutions and dispersion characteristics of TE and TM waves in the dispersive medium. Geometries considered are an infinite medium and a waveguide filled longitudinally with the inhomogeneous plasma. Numerical computations are made to show the dispersion characteristics in detail for arbitrarily chosen values of the plasma electron density. The effects resulting from collisions on the dispersion characteristics are also considered for TE waves in a waveguide. In a comparison of TE and TM propagation characteristics in the lossless medium it is shown that for low frequencies the dispersion relations differ significantly and for high frequencies the dispersion relations converge. (Author).

Download or read book Methods of Wave Theory in Dispersive Media written by Mikhail Viktorovich Kuzelev and published by World Scientific. This book was released on 2010 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ch. 1. Linear harmonic waves in dispersive systems. Initial-value problem and problem with an external source. 1. Harmonic waves in dispersive systems. 2. Initial-value problem. Eigenmode method. 3. Characteristic function of the state vector. Dispersion operator. 4. Laplace transform method -- ch. 2. A case study of linear waves in dispersive media. 5. Transverse electromagnetic waves in an isotropic dielectric. 6. Longitudinal electrostatic waves in a cold isotropic plasma. Collisional dissipation of plasma waves. 7. Transverse electromagnetic waves in a cold isotropic plasma. Dissipation of transverse waves in a plasma. 8. Electromagnetic waves in metals. 9. Electromagnetic waves in a waveguide with an isotropic dielectric. 10. Longitudinal waves in a hot isotropic plasma. Electron diffusion in a plasma. 11. Longitudinal waves in an isotropic degenerate plasma. Waves in a quantum plasma. 12. Ion acoustic waves in a nonisothermal plasma. Ambipolar diffusion. 13. Electromagnetic waves in a waveguide with an anisotropic plasma in a strong external magnetic field. 14. Electromagnetic waves propagating in a magnetized electron plasma along a magnetic field. 15. Electrostatic waves propagating in a magnetized electron plasma at an angle to a magnetic field. 16. Magnetohydrodynamic waves in a conducting fluid. 17. Acoustic waves in crystals. 18. Longitudinal electrostatic waves in a one-dimensional electron beam. 19. Beam instability in a plasma. 20. Instability of a current-carrying plasma -- ch. 3. Linear waves in coupled media. Slow amplitude method. 21. Coupled oscillator representation and slow amplitude method. 22. Beam-plasma system in the coupled oscillator representation. 23. Basic equations of microwave electronics. 24. Resonant Buneman instability in a current-carrying plasma in the coupled oscillator representation. 25. Dispersion function and wave absorption in dissipative systems. 26. Some effects in the interaction between waves in coupled systems. 27. Waves and their interaction in periodic structures -- ch. 4. Nonharmonic waves in dispersive media. 28. General solution to the initial-value problem. 29. Quasi-harmonic approximation. Group velocity. 30. Pulse spreading in equilibrium dispersive media. 31. Stationary-phase method. 32. Some problems for wave equations with a source -- ch. 5. Nonharmonic waves in nonequilibrium media. 33. Pulse propagation in nonequilibrium media. 34. Stationary-phase method for complex frequencies. 35. Quasi-harmonic approximation in the theory of interaction of electron beams with slowing-down media -- ch. 6. Theory of instabilities. 36. Convective and absolute instabilities. First criterion for the type of instability. 37. Saddle-point method. Second criterion for the type of instability. 38. Third Criterion for the type of instability. 39. Type of beam instability in the interaction with a slowed wave of zero group velocity in a medium. 40. Calculation of the Green's functions of unstable systems -- ch. 7. Hamiltonian method in the theory of electromagnetic radiation in dispersive media. 41. Equations for the excitation of transverse electromagnetic field oscillators. 42. Dipole radiation. 43. Radiation from a moving dipole - undulator radiation. 44. Cyclotron radiation. 45. Cherenkov effect. Anomalous and normal doppler effects. 46. Application of the Hamiltonian method to the problem of the excitation of longitudinal waves

Download or read book Wave Propagation in a Dispersive Absorptive Medium and a Definition of the Signal Velocity written by D. B. Trizna and published by . This book was released on 1966 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On Pulsed Electromagnetic Wave Propagation in Dispersive Media written by C. T. Case and published by . This book was released on 1966 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Controllable Wave Propagation of Hybrid Dispersive Medium with LC High Pass Network written by Edgar A. Flores Parra and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Display of the Airy Function and Transient Wave Propagation in a Dispersive Medium written by Jeong-Han Kim and published by . This book was released on 1996 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Controllable Wave Propagation of 2D Hybrid Dispersive Medium written by Edgar Flores Parra and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transient Wave Propagation in Spatial and Temporal Dispersive Media written by Kenneth Chien-Ying Chen and published by . This book was released on 1969 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wave Propagation in Dispersive Web Media written by Suefen Chen and published by . This book was released on 1992 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electromagnetic Wave Propagation in Dispersive Periodic Medium written by James Russell Matthes (MAJ, USAF.) and published by . This book was released on 1968 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Time Frequency and Pulse Propagation in Dispersive Media written by and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: We apply the methods of time-frequency analysis to pulse propagation in a dispersive medium. We give exact expressions for conditional moments and in particular for the contraction and spreading of the pulse, the covariance between position and wave number and other relevant physical quantities. For the contraction time it is shown that the important quantity is the initial correlation between position and group velocity. A simple physical and mathematical model is presented that explains why sometimes pulses contract before eventually expanding. In addition, we give formulas for the calculation of the instantaneous frequency of a pulse at a given position which show how dispersion effects instantaneous frequency. Also, we apply the Wigner distribution to study pulse propagation in dispersive media. Doing so provides insight and simplifies the view of pulse propagation and further leads to simple approximation methods that evolve a pulse in time. In addition, we derive representations that jointly involve the four variables of time, frequency, space, and spatial frequency, and we apply these representations to wave propagation. A number of examples are used to illustrate the formulas derived.

Download or read book Wave Propagation in Dissipative Or Dispersive Nonlinear Media written by Mevlüt Teymur and published by . This book was released on 1976 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phase space Analysis of Wave Propagation in Dispersive Media written by Anastasios Ioannis Tsolakis and published by . This book was released on 1980 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wave Propagation in Dispersive Anisotropic Media written by Richard Salvatore Sorbello and published by . This book was released on 1965 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: