3 edition of Modal ring method for the scattering of electromagnetic waves found in the catalog.
Modal ring method for the scattering of electromagnetic waves
Kenneth J. Baumeister
1993 by NASA, National Technical Information Service, distributor in [Washington, D.C.], [Springfield, Va .
Written in English
|Statement||Kenneth J. Baumeister and Kevin L. Kreider.|
|Series||NASA technical memorandum -- 105966.|
|Contributions||Kreider, Kevin L., United States. National Aeronautics and Space Administration.|
|The Physical Object|
All these waves add up to give specular reflection and refraction, according to the Huygens—Fresnel principle. Tsang, C. Such scattering is called the Tyndall effect and results in a nearly wavelength-independent that is, white scattering spectrum. Ngo, P. The process can also work in reverse, as scientific observation of scattering can provide information about the incoming wave and the particles that that are scattering it.
Larger scattering centers are covered by the Mie theory of electromagnetic scattering, named for German physicist Gustav Mie. Not only the direction of the light is reversed, but the actual wavefronts are reversed as well. Tateiba and L. Kong, Scattering of Electromagnetic Waves, Vol. If one were to look into a complex conjugating mirror, it would be black because only the photons which left the pupil would reach the pupil.
Tsang, L. Electromagnetic scattering is, at its basis, a simple concept, visible in every day situations. Instead of proceeding in a straight line, as light waves do unimpeded, the light refracts or bounces off of microscopic textures in the object. Thiele, and A. This constitutes an important electromagnetic problem since long time ago and, in order to solve it some information has to be obtained about the physical scattering structure i.
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A conjugate reflector can be used to remove aberrations from a beam by reflecting it and then passing the reflection through the aberrating optics a second time. This is an important principle in the field of thin-film optics.
Artech House, Boston Google Scholar Inelastic electromagnetic scattering is used in several fields, including astrophysicsX-ray technology, and in measuring the elastic response of living tissue.
This partial retro-reflection is created by the refractive properties of the curved droplet's surface and reflective properties at the backside of the droplet. Wriedt T. Dungey C. The Tyndall effect is the reason clouds are white the waterdroplets become larger than the wavelengths of visible light.
Ad Because of the small size of scattering particles in Rayleigh scattering, the shape of the particles is not considered significant. Because blue has a short wave length, it is particularly susceptible to scattering as it bounces off gas particles of the air surrounding Earth.
Reflection from a flat surface forms a mirror imagewhich appears to be reversed from left to right because we compare the image we see to what we would see if we were rotated into the position of the image. Electromagnetic scattering is often responsible for the appearance of color, and has several distinct forms.
This leads to fixed phase relations and destructive interference for most of the scattered light. Moreover, the many-body scattering theory is developed and equations for the effective field in the medium in which many small particles are embedded are derived.
Light in the visible, infrared, or ultraviolet region interacts primarily with the electrons in gases, liquids, and solids—not the nuclei. Instead of proceeding in a straight line, as light waves do unimpeded, the light refracts or bounces off of microscopic textures in the object.
Diffuse reflection Main article: Diffuse reflection When light strikes the surface of a non-metallic material it bounces off in all directions due to multiple reflections by the microscopic irregularities inside the material e.
In practice, these situations can only be approached but not achieved because the effects of any surface imperfections in the reflectors propagate and magnify, absorption gradually extinguishes the image, and any observing equipment biological or technological will interfere.
Chang, Toon O. Diagrammatic techniques and effective medium theories re- main essential for analytical studies; however, rapid advances in computer technology have opened new doors for researchers with the full power of Monte Carlo simulations in the numerical analysis of random media scatter- ing.
Kong, and K. Seismic reflection Further information: reflection seismology Seismic waves produced by earthquakes or other sources such as explosions may be reflected by layers within the Earth. A square of four mirrors placed face to face give the appearance of an infinite number of images arranged in a plane.
Gow, D. Reflection also occurs at the surface of transparent media, such as water or glass. In this application perfect retroreflection is not desired, since the light would then be directed back into the headlights of an oncoming car rather than to the driver's eyes.
His work is considered particularly useful in understanding electromagnetic scattering through hazes or clouds. Chifier N. In this book, a wide range of different topics related to analytical as well as numerical solutions of problems related to scattering, propagation, radiation, and emission in different medium are discussed.
Link to this page:. The symposium provided a forum for discussing electromagnetic wave theory and tackled a wide range of topics, from propagation in nonlinear media to electromagnetic wave propagation and amplification in solid-state plasmas.Oct 03, · Electromagnetic scattering is the physical effect of an electromagnetic wave, such as light or radio waves, hitting an atlasbowling.comd of proceeding in a straight line, as light waves do unimpeded, the light refracts or bounces off of microscopic textures in the object.
Inverse Acoustic and Electromagnetic Scattering Theory DAVID COLTON Abstract. This paper is a survey of the inverse scattering problem for time-harmonic acoustic and electromagnetic waves at ˝xed frequency.
We begin by a discussion of weak scattering and Newton-type methods for solving the inverse scattering problem for acoustic waves.
This book offers analytical formulas which allow you to calculate acoustic and electromagnetic waves, scattered by one and many small bodies of an arbitrary shape under various boundary conditions. Equations for the effective (self-consistent) field in media consisting of many small bodies are derived.
Hybridization of the Scattering Matrix Method and Modal Decomposition for Analysis of Signal Traces in a Power Distribution Network. Dec 21, · Recent scientific meetings in close relation with the scattering of electromagnetic waves from microstructures confirm the current interest of the scientific community .
A number of issues have been devoted to the subject in some journals , and also several books of collected works (theoretical and applied) have been edited [5,6].Cited by: 3. Plus, Scattering of Electromagnetic Waves contains detailed discussions of both analytical and numerical methods, including cutting-edge techniques for the recovery of earth/land parametric information.
The three volumes are entitled respectively Theories and Applications, Numerical Simulation, and .