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Author : Henk Marquering
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.F/5 ( download)
Download or read book Surface-wave Mode Coupling written by Henk Marquering and published by . This book was released on 1996 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward F. Kuester
Publisher :
ISBN 13 :
Total Pages : 55 pages
Book Rating : 4.:/5 (227 download)
Download or read book Non-Degenerate Surface-Wave Mode Coupling of a System of Dielectric Waveguides written by Edward F. Kuester and published by . This book was released on 1974 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of different methods in the literature for calculating the coupling between surface wave modes on parallel optical waveguides are examined and found to give identical results only for degenerate modes. A new variational derivation of the coupling coefficients is given, which is extended in a straightforward manner to include anisotropic guides and/or an arbitrary number of guides or modes. The character of the differences between the various methods in the non-degenerate case is discussed, and the approximations required are investigated numerically for the case of two parallel slab waveguides.
Author : David C. Chang
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (227 download)
Download or read book Surface Wave Mode Coupling of Straight and Curved Dielectric Optical Waveguides written by David C. Chang and published by . This book was released on 1975 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research project was to investigate, both theoretically and experimentally, the optical wave guiding properties of dielectric channels used in integrated optics. The goal was to develop knowledge essential in specification, design and utilization of optical integrated circuits. More specifically it includes the development of: Guidelines for design of dielectric channel waveguides having desirable propagation, loss and radiation characteristics; Guidelines for spacing two dielectric channel waveguides so as to avoid coupling between them; Guidelines for design of bends in dielectric channel waveguides so as to minimize the radiation loss by the bend, or to use the radiation from the bend in a controlled manner; and, Design criteria for optical components such as directional couplers, isolators, channels, selectors, frequency selectors, etc.
Author :
Publisher :
ISBN 13 :
Total Pages : 37 pages
Book Rating : 4.:/5 (16 download)
Download or read book Effect of Surface Modes on Coupling to Fast Waves in the LHRF. written by and published by . This book was released on 1990 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of surface modes of propagation on coupling to fast waves in the LHRF is studied theoretically and experimentally. The previously reported up-down' poloidal phasing asymmetry for coupling to a uniform plasma is shown to be due to the properties of a mode which carries energy along the plasma-conducting wall interface. Comparison of the theory with coupling experiments performed on the PLT tokamak with a phased array of twelve dielectric-loaded waveguides at 800 MHz shows that the observed dependence of the net reflection coefficient on toroidal phase angle can be explained only if the surface wave is taken into account. 43 refs., 10 figs.
Author : John Polo
Publisher : Newnes
ISBN 13 : 0123971853
Total Pages : 315 pages
Book Rating : 4.1/5 (239 download)
Download or read book Electromagnetic Surface Waves written by John Polo and published by Newnes. This book was released on 2013-05-31 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: For decades, the surface-plasmon-polariton wave guided by the interface of simple isotropic materials dominated the scene. However, in recent times research on electromagnetic surface waves guided by planar interfaces has expanded into new and exciting areas. In the 1990's research focused on advancing knowledge of the newly discovered Dyakonov wave. More recently, much of the surface wave research is motivated by the proliferation of nanotechnology and the growing number of materials available with novel properties. This book leads the reader from the relatively simple surface-plasmon-polariton wave with isotropic materials to the latest research on various types of electromagnetic surface waves guided by the interfaces of complex materials enabled by recent developments in nanotechnology. This includes: Dyakonov waves guided by interfaces formed with columnar thin films, Dyakonov-Tamm waves guided by interfaces formed with sculptured thin films, and multiple modes of surface-plasmon-polariton waves guided by the interface of a metal and a periodically varying dielectric material. Gathers research from the past 5 years in a single comprehensive view of electromagnetic surface waves. Written by the foremost experts and researchers in the field. Layered presentation explains topics with an introductory overview level up to a highly technical level.
Author : Thierry Bourbié
Publisher : Editions TECHNIP
ISBN 13 : 9782710805168
Total Pages : 366 pages
Book Rating : 4.8/5 (51 download)
Download or read book Acoustics of Porous Media written by Thierry Bourbié and published by Editions TECHNIP. This book was released on 1987 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. R. Pike
Publisher : Academic Press
ISBN 13 : 0126137609
Total Pages : 985 pages
Book Rating : 4.1/5 (261 download)
Download or read book Scattering, Two-Volume Set written by E. R. Pike and published by Academic Press. This book was released on 2002 with total page 985 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part 1: SCATTERING OF WAVES BY MACROSCOPIC TARGET -- Interdisciplinary aspects of wave scattering -- Acoustic scattering -- Acoustic scattering: approximate methods -- Electromagnetic wave scattering: theory -- Electromagnetic wave scattering: approximate and numerical methods -- Electromagnetic wave scattering: applications -- Elastodynamic wave scattering: theory -- Elastodynamic wave scattering: Applications -- Scattering in Oceans -- Part 2: SCATTERING IN MICROSCOPIC PHYSICS AND CHEMICAL PHYSICS -- Introduction to direct potential scattering -- Introduction to Inverse Potential Scattering -- Visible and Near-visible Light Scattering -- Practical Aspects of Visible and Near-visible Light Scattering -- Nonlinear Light Scattering -- Atomic and Molecular Scattering: Introduction to Scattering in Chemical -- X-ray Scattering -- Neutron Scattering -- Electron Diffraction and Scattering -- Part 3: SCATTERING IN NUCLEAR PHYSICS -- Nuclear Physics -- Part 4: PARTICLE SCATTERING -- State of the Art of Peturbative Methods -- Scattering Through Electro-weak Interactions (the Fermi Scale) -- Scattering Through Strong Interactions (the Hadronic or QCD Scale) -- Part 5: SCATTERING AT EXTREME PHYSICAL SCALES -- Scattering at Extreme Physical Scales -- Part 6: SCATTERING IN MATHEMATICS AND NON-PHYSICAL SCIENCES -- Relations with Other Mathematical Theories -- Inverse Scattering Transform and Non-linear Partial Differenttial Equations -- Scattering of Mathematical Objects.
Author : José M. Carcione
Publisher : Elsevier
ISBN 13 : 0081000030
Total Pages : 690 pages
Book Rating : 4.0/5 (81 download)
Download or read book Wave Fields in Real Media written by José M. Carcione and published by Elsevier. This book was released on 2014-12-08 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authored by the internationally renowned José M. Carcione, Wave Fields in Real Media: Wave Propagation in Anisotropic, Anelastic, Porous and Electromagnetic Media examines the differences between an ideal and a real description of wave propagation, starting with the introduction of relevant stress-strain relations. The combination of this relation and the equations of momentum conservation lead to the equation of motion. The differential formulation is written in terms of memory variables, and Biot's theory is used to describe wave propagation in porous media. For each rheology, a plane-wave analysis is performed in order to understand the physics of wave propagation. This book contains a review of the main direct numerical methods for solving the equation of motion in the time and space domains. The emphasis is on geophysical applications for seismic exploration, but researchers in the fields of earthquake seismology, rock acoustics, and material science - including many branches of acoustics of fluids and solids - may also find this text useful. New to this edition: This new edition presents the fundamentals of wave propagation in Anisotropic, Anelastic, Porous Media while also incorporating the latest research from the past 7 years, including that of the author. The author presents all the equations and concepts necessary to understand the physics of wave propagation. These equations form the basis for modeling and inversion of seismic and electromagnetic data. Additionally, demonstrations are given, so the book can be used to teach post-graduate courses. Addition of new and revised content is approximately 30%. Examines the fundamentals of wave propagation in anisotropic, anelastic and porous media Presents all equations and concepts necessary to understand the physics of wave propagation, with examples Emphasizes geophysics, particularly, seismic exploration for hydrocarbon reservoirs, which is essential for exploration and production of oil
Author : Nam S. Wong
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.3/5 (91 download)
Download or read book Investigation of Use of Superimposed Surface Wave Modes written by Nam S. Wong and published by . This book was released on 1970 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method of achieving a matched aperture in phased arrays over a wide range of scan angle has been investigated. This method uses two or more propagating modes in each array element such that the reflections of these modes from the array aperture produce a cancellation effect at the element driving terminal. An experimental 256 element planar array was constructed to demonstrate this technique. Each radiating element consists of an open-ended waveguide driven by an end-on coaxial transition. Modal amplitude control of higher order modes is accomplished by means of either a perforated dielectric slab or an inductive iris at the aperture. (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (946 download)
Download or read book Coupled Elastic Surface Wave in Curved Structures written by and published by . This book was released on 2000 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: A mathematical description of coupled. surface-wave propagation in elastic waveguides whose properties change slowly in the lateral or transverse directions has been constructed. This construction includes curved waveguides (shells) whose radius of curvature is large with respect to thickness. The work was undertaken to explore a nondestructive way to interrogate an inaccessible side of a structure by launching a surface wave on the other accessible side. For flat waveguides (plates) whose thickness varies slowly in the propagation direction the surface waves couple very efficiently provided the thickness is on the order of a wavelength, but as the waveguide grows in thickness the coupling is quickly lost. The coupling in a curved waveguide occurs provided the ratio thickness to radius of curvature is of the order of 1/20 and the thickness is on the order of a wavelength.
Author : Carlo G. Lai
Publisher : Springer Science & Business Media
ISBN 13 : 3211380655
Total Pages : 390 pages
Book Rating : 4.2/5 (113 download)
Download or read book Surface Waves in Geomechanics: Direct and Inverse Modelling for Soils and Rocks written by Carlo G. Lai and published by Springer Science & Business Media. This book was released on 2007-03-23 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theories of surface waves develop since the end of XIX century and many fundamental problems like existence, phase and group velocities, attenuation (quality factor), mode conversion, etc. have been, in part successfully, solved within the framework of such simple models as ideal fluids^ or linear elasticity. However, a sufficiently complete presentation of this subject, particularly for solids, is still missing in the literature. The sole exception is the book of I. A. Viktorov^ which contains an extensive discussion of fundamental properties of surface waves in homogeneous and stratified linear elastic solids with particular emphasis on contributions of Russian scientists. Unfortunately, the book has never been translated to English and its Russian version is also hardly available. Practical applications of surface waves develop intensively since a much shorter period of time than theories even though the motivation of discoverers of surface waves such as Lord Rayleigh stems from their appearance in geophysics and seismology. Nowadays the growing interest in practical applications of surface waves stem from the following two main factors: surface waves are ideal for developing relatively cheap and convenient methods of nondestructive testing of various systems spanning from nanomaterials (e.g.
Author : Igor I Smolyaninov
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1681745666
Total Pages : 119 pages
Book Rating : 4.6/5 (817 download)
Download or read book Hyperbolic Metamaterials written by Igor I Smolyaninov and published by Morgan & Claypool Publishers. This book was released on 2018-03-23 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hyperbolic metamaterials were originally introduced to overcome the diffraction limit of optical imaging. Soon thereafter it was realized that hyperbolic metamaterials demonstrate a number of novel phenomena resulting from the broadband singular behavior of their density of photonic states. These novel phenomena and applications include super resolution imaging, new stealth technologies, enhanced quantum-electrodynamic effects, thermal hyperconductivity, superconductivity, and interesting gravitation theory analogs. Here I review typical material systems, which exhibit hyperbolic behavior and outline important new applications of hyperbolic metamaterials, such as imaging experiments with plasmonic hyperbolic metamaterials and novel VCSEL geometries, in which the Bragg mirrors may be engineered in such a way that they exhibit hyperbolic properties in the long wavelength infrared range, so that they may be used to efficiently remove excess heat from the laser cavity. I will also discuss potential applications of self-assembled photonic hypercrystals. This system bypasses 3D nanofabrication issues, which typically limit hyperbolic metamaterial applications. Photonic hypercrystals combine the most interesting features of hyperbolic metamaterials and photonic crystals.
Author : Peter Malischewsky
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3112756673
Total Pages : 232 pages
Book Rating : 4.1/5 (127 download)
Download or read book Surface Waves and Discontinuities written by Peter Malischewsky and published by Walter de Gruyter GmbH & Co KG. This book was released on 1987-12-31 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: No detailed description available for "Surface Waves and Discontinuities".
Author : N. S. Wong
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.3/5 (91 download)
Download or read book Investigation of Use of Superimposed Surface Wave Modes written by N. S. Wong and published by . This book was released on 1967 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel method of achieving a matched radiating element in a phased array antenna over a wide scan angle has been investigated. This method has been applied in the design of an experimental linear array of 41 elements. Each radiating element consists of an open-ended waveguide driven by an end-on coaxial transition in conjunction with offset posts for the appropriate excitation of the two lowest order modes. The measured input VSWR over a 55 degree scan angle was less than 1.5 on this experimental linear array. This result agreed fairly well with the predicted value. In addition, no degradation on the array pattern due to edge effect was observed on the experimental array with all the elements matched over the 55 degrees scan range. (Author).
Author : Neil F. Cramer
Publisher : John Wiley & Sons
ISBN 13 : 3527635025
Total Pages : 312 pages
Book Rating : 4.5/5 (276 download)
Download or read book The Physics of Alfvén Waves written by Neil F. Cramer and published by John Wiley & Sons. This book was released on 2011-02-10 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-frequency wave modes of magnetized inhomogeneous plasmas have been subject to intense study in the last decade because they play important roles in the transport of energy in the plasmas. The "Alfvén wave heating" scheme has been investigated as a supplementary heating scheme for fusion plasma devices, and it has been invoked as a model of the heating of the solar and stellar coronae. This book covers the latest research into the properties and applications of low-frequency wave modes in magnetized plasmas, the Alfvén waves and magneto-acoustic waves, in the context of laboratory, space and astrophysical plasmas. In particular, non-ideal effects on the dispersion relation and absorption properties of linear and non-linear waves are included, such as ion-cyclotron effects, friction between the ionized plasma and a background gas of neutral atoms, and the interaction of the plasma with dust particles. The book also surveys the theory of Alfvén and magnetoacoustic waves in inhomogeneous plasmas, as occur in realistic laboratory, space and astrophysical plasmas, with resulting localized wave modes such as surface waves. Waves are considered under a variety of plasma conditions, ranging from cold cosmic plasmas, to hot laboratory and solar plasmas, to the relativistic plasmas around pulsars.
Author : Chiang C Mei
Publisher : World Scientific Publishing Company
ISBN 13 : 9813147202
Total Pages : 1240 pages
Book Rating : 4.8/5 (131 download)
Download or read book Theory And Applications Of Ocean Surface Waves (Third Edition) (In 2 Volumes) written by Chiang C Mei and published by World Scientific Publishing Company. This book was released on 2018-03-15 with total page 1240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book set is a revised version of the 2005 edition of Theory and Applications of Ocean Surface Waves. It presents theoretical topics on ocean wave dynamics, including basic principles and applications in coastal and offshore engineering as well as coastal oceanography. Advanced analytical and numerical techniques are demonstrated. In this revised version, five chapters on recent developments in linear and nonlinear aspects have been added. The first is on detailed analyses in Wave/Structure Interactions. The second is a new section on Waves through a Marine Forest, a topic motivated by its possible relevance to tsunami reduction. The third is on Long Waves in Shallow Water and the fourth is an update on Broad-Banded Nonlinear Surface Waves in the Open Sea to include new findings in this topic. The fifth is an expanded chapter on Numerical Simulation of Nonlinear Wave Dynamics to include predictions of nonlinear spectral evolution and rogue wave occurrence and dynamics using large-scale phase-resolved simulations. This revised version also includes recent developments in precorrected-FFT accelerated O(N log N) low- and high-order boundary element methods for the computation of fully nonlinear wave-wave and wave-body interactions.Theory and Applications of Ocean Surface Waves (2016) will be invaluable for graduate students and researchers in coastal and ocean engineering, geophysical fluid dynamicists interested in water waves, and theoretical scientists and applied mathematicians wishing to develop new techniques for challenging problems or to apply techniques existing elsewhere.
Author : Ru-Shan Wu
Publisher : Elsevier
ISBN 13 : 0080466354
Total Pages : 627 pages
Book Rating : 4.0/5 (84 download)
Download or read book Advances in Geophysics written by Ru-Shan Wu and published by Elsevier. This book was released on 2006-12-14 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: Significant progress in our understanding of the Earth's structure and functioning is dependent on new and original observations. However, these observations cannot be interpreted in a quantitative way without tools to model them, and developing adequate modelling methods is also a prerequisite for progress. Seismological raw data in the 21st century are mostly three-component broadband recordings, and require advanced numerical tools to be modelled, especially if lateral variations in the model are accounted for in addition to the radial stratification of the Earth. Considerable progress has been made concerning modelling of elastic waves in laterally heterogeneous structures in the last decades, taking advantage of the development of computer power. The number of articles related to new developments of diverse methods is enormous and it can be very difficult for newcomers to get an overview of the different methods available, and to be able to find which method is most appropriate for his or her applications. This book aims at giving introductions and basic reviews of the modelling methods for elastic waves in laterally heterogeneous structures which are most commonly used in contemporary seismology, or may have great potential for the future.
