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Author: Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
A complete asymptotic description of ultra wide band/ultra short electromagnetic pulse propagation in causally dispersive, attenuative media has been developed and will be extended to complex dielectric, conducting, and magnetic media exhibiting temporal dispersion.
Author: Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
A complete asymptotic description of ultra wide band/ultra short electromagnetic pulse propagation in causally dispersive, attenuative media has been developed and will be extended to complex dielectric, conducting, and magnetic media exhibiting temporal dispersion.
Author: Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
This grant was used to continue support of our graduate level research program into the complete asymptotic description of ultrawideband signal, ultrashort pulse electromagnetic wave propagation in causally dispersive media and waveguiding systems. Our long-term research goal in this important area is to develop a rigorous, uniform asymptotic description of ultrawideband electromagnetic pulsed beam propagation, reflection, and transmission phenomena in both lossy dielectric and conducting dispersive media that is valid for arbitrarily sort rise-time spatial and temporal dynamics of the field as it propagates through the dispersive material.
Author: Kurt E. Oughstun Publisher: Springer Science & Business Media ISBN: 1441901493 Category : Science Languages : en Pages : 841
Book Description
Electromagnetic & Optical Pulse Propagation presents a detailed, systematic treatment of the time-domain electromagnetics with application to the propagation of transient electromagnetic fields (including ultrawideband signals and ultrashort pulses) in homogeneous, isotropic media which exhibit both temporal frequency dispersion and attenuation. The development is mathematically rigorous with strict adherence to the fundamental physical principle of causality. Approximation methods are based upon mathematically well-defined asymptotic techniques that are based upon the saddle point method. A detailed description is given of the asymptotic expansions used. Meaningful exercises are given throughout the text to help the reader‘s understanding of the material, making the book a useful graduate level text in electromagnetic wave theory for both physics, electrical engineering and materials science programs. Both students and researchers alike will obtain a better understanding of time domain electromagnetics as it applies to electromagnetic radiation and wave propagation theory with applications to ground and foliage penetrating radar, medical imaging, communications, and the health and safety issues associated with ultrawideband pulsed fields. Volume 2 presents a detailed asymptotic description of plane wave pulse propagation in dielectric, conducting, and semiconducting materials as described by the classical Lorentz model of dielectric resonance, the Rocard-Powles-Debys model of orientational polarization, and the Drude model of metals. The rigorous description of the signal velocity of a pulse in a dispersive material is presented in connection with the question of superluminal pulse propagation.
Author: Kurt E. Oughstun Publisher: Springer ISBN: 3030206920 Category : Science Languages : en Pages : 810
Book Description
In two volumes, this book presents a detailed, systematic treatment of electromagnetics with application to the propagation of transient electromagnetic fields (including ultrawideband signals and ultrashort pulses) in dispersive attenuative media. The development in this expanded, updated, and reorganized new edition is mathematically rigorous, progressing from classical theory to the asymptotic description of pulsed wave fields in Debye and Lorentz model dielectrics, Drude model conductors, and composite model semiconductors. It will be of use to researchers as a resource on electromagnetic radiation and wave propagation theory with applications to ground and foliage penetrating radar, medical imaging, communications, and safety issues associated with ultrawideband pulsed fields. With meaningful exercises, and an authoritative selection of topics, it can also be used as a textbook to prepare graduate students for research. Volume 2 presents a detailed asymptotic description of plane wave pulse propagation in dielectric, conducting, and semiconducting materials as described by the classical Lorentz model of dielectric resonance, the Rocard-Powles-Debye model of orientational polarization, and the Drude model of metals. The rigorous description of the signal velocity of a pulse in a dispersive material is presented in connection with the question of superluminal pulse propagation. The second edition contains new material on the effects of spatial dispersion on precursor formation, and pulse transmission into a dispersive half space and into multilayered media. Volume 1 covers spectral representations in temporally dispersive media.
Author: Publisher: ISBN: Category : Languages : en Pages : 3
Book Description
This grant was used to continue support of our graduate level research program into the complete asymptotic description of electromagnetic pulse propagation in causally dispersive media and waveguiding systems. Our long term research goal in this important area is to develop a rigorous, uniform asymptotic description of ultra wideband electromagnetic pulse propagation, reflection, and transmission phenomena in both lossy dielectric and conducting dispersive media that is valid for arbitrarily short rise time pulses.
Author: L. Carin Publisher: Springer Science & Business Media ISBN: 1489913947 Category : Science Languages : en Pages : 591
Book Description
The papers published in this volume were presented at the Second International Conference on Ultra-WidebandiShort-Pulse (UWB/SP) Electromagnetics, ApriIS-7, 1994. To place this second international conference in proper perspective with respect to the first conference held during October 8-10, 1992, at Polytechnic University, some background information is necessary. As we had hoped, the first conference struck a responsive cord, both in timeliness and relevance, among the electromagnetic community 1. Participants at the first conference already inquired whether and when a follow-up meeting was under consideration. The first concrete proposal in this direction was made a few months after the first conference by Prof. A. Terzuoli of the Air Force Institute of Technology (AFIT), Dayton, Ohio, who has been a strong advocate of time-domain methods and technologies. He initially proposed a follow-up time-domain workshop under AFIT auspices. Realizing that interest in this subject is lodged also at other Air Force installations, we suggested to enlarge the scope, and received in this endeavor the support of Dr. A. Nachman of AFOSR (Air Force Office of Scientific Research), Bolling Air Force Base, Washington, D.C.
Author: Kurt E. Oughstun Publisher: Springer ISBN: 0387347305 Category : Science Languages : en Pages : 464
Book Description
This volume presents a detailed, rigorous treatment of the fundamental theory of electromagnetic pulse propagation in causally dispersive media that is applicable to dielectric, conducting, and semiconducting media. Asymptotic methods of approximation based upon saddle point methods are presented in detail.
Author: Kurt E. Oughstun Publisher: Springer ISBN: 3030208354 Category : Science Languages : en Pages : 753
Book Description
This volume presents a detailed, rigorous treatment of the fundamental theory of electromagnetic pulse propagation in causally dispersive media that is applicable to dielectric, conducting, and semiconducting media. Asymptotic methods of approximation based upon saddle point methods are presented in detail.
Author: Kurt E. Oughstun Publisher: Springer Science & Business Media ISBN: 364261227X Category : Science Languages : en Pages : 477
Book Description
This research monograph presents a systematic treatment of the theory of the propagation of transient electromagnetic fields (such as optical pulses) through dielectric media which exhibit both dispersion and absorption. The work divides naturally into two parts. Part I presents a summary of the fundamental theory of the radiation and propagation of rather general electromagnetic waves in causal, linear media which are homogeneous and isotropic but which otherwise have rather general dispersive and absorbing properties. In Part II, we specialize on the propagation of a plane, transient electromagnetic field in a homogeneous dielectric. Although we have made some contributions to the fundamental theory given in Part I, most of the results of our own research appear in Part II. The purpose of the theory presented in Part II is to predict and to explain in explicit detail the dynamics of the field after it has propagated far enough through the medium to be in the mature-dispersion regime. It is the subject of a classic theory, based on the research conducted by A. Sommerfeld and L.
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Author: Kurt E. Oughstun
Author: Kurt E. Oughstun
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Author: L. Carin
Author: Kurt E. Oughstun
Author: Kurt E. Oughstun
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Author: Kurt E. Oughstun