124,896 research outputs found
On wave propagation in inhomogeneous systems
We present a theory of electron, electromagnetic, and elastic wave
propagation in systems consisting of non-overlapping scatterers in a host
medium. The theory provides a framework for a unified description of wave
propagation in three-dimensional periodic structures, finite slabs of layered
structures, and systems with impurities: isolated impurities, impurity
aggregates, or randomly distributed impurities. We point out the similarities
and differences between the different cases considered, and discuss the
numerical implementation of the formalism.Comment: 12 page
Study and simulation on the effect of resistive medium to the propagation of electromagnetic wave using CST EM Studio software
This dissertation discusses the project, "Study and simulation on the effect of resistive medium to the propagation of electromagnetic wave using CST EM Studio software". This project deals with electromagnetic theory, electromagnetic wave, radio frequency and also propagated signal. The objective of the project is to study and simulate the effect of resistive medium to the propagation of electromagnetic wave
Electromagnetic Waves
This book is dedicated to various aspects of electromagnetic wave theory and its applications in science and technology. The covered topics include the fundamental physics of electromagnetic waves, theory of electromagnetic wave propagation and scattering, methods of computational analysis, material characterization, electromagnetic properties of plasma, analysis and applications of periodic structures and waveguide components, and finally, the biological effects and medical applications of electromagnetic fields
Electromagnetic wave propagation inside a material medium: an effective geometry interpretation
We present a method developed to deal with electromagnetic wave propagation
inside a material medium that reacts, in general, non-linearly to the field
strength. We work in the context of Maxwell' s theory in the low frequency
limit and obtain a geometrical representation of light paths for each case
presented. The isotropic case and artificial birefringence caused by an
external electric field are analyzed as an application of the formalism and the
effective geometry associated to the wave propagation is exhibited.Comment: REVTeX file, 6 pages. Version to appear in Phys. Lett.
Guiding optical flows by photonic crystal slabs made of dielectric cylinders
We investigate the electromagnetic propagation in two-dimensional photonic
crystals, formed by parallel dielectric cylinders embedded a uniform medium.
The frequency band structure is computed using the standard plane-wave
expansion method, while the propagation and scattering of the electromagnetic
waves are calculated by the multiple scattering theory. It is shown that within
partial bandgaps, the waves tend to bend away from the forbidden directions.
Such a property may render novel applications in manipulating optical flows. In
addition, the relevance with the imaging by flat photonic crystal slabs will
also be discussed.Comment: 5 pages, 5 figure
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