Correlation Effects in Multiple Scattering from Random Rough Surfaces

Correlation Effects in Multiple Scattering from Random Rough Surfaces PDF Author: Zu-Han Gu
Publisher:
ISBN:
Category :
Languages : en
Pages : 14

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Book Description
The first theoretical studies of angular correlations in the intensity of light scattered from randomly rough metal surfaces, that go beyond the factorization approximation, have been carried out. As a consequence, in addition to the memory and the time-reversed memory effects studied by earlier authors, known as the short-range C(1) correlations, the long-range C(2) correlations and the infinite-range C(3) correlations have been determined. The latter two correlation functions had been studied earlier in the scattering of light from volume disordered systems, but had not yet been studied in rough surface scattering. In addition, a new correlation function, called C(10), of the same order of magnitude as C(1) has been found, as well as another new correlation function, called C(1.5), that, along with C(2), displays peaks associated with the roughness-induced excitation of the surface electromagnetic waves supported by the vacuum-metal interface. The invalidity of the factorization approximation for weakly rough random surfaces has also been established in another set of calculations. Experimental studies of the memory and time-reversed memory effects have been carried out, as have studies of the effects of localized defects on angular correlations in the intensity of light scattered from random surfaces.

Correlation Effects in Multiple Scattering from Random Rough Surfaces

Correlation Effects in Multiple Scattering from Random Rough Surfaces PDF Author: Zu-Han Gu
Publisher:
ISBN:
Category :
Languages : en
Pages : 14

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Book Description
The first theoretical studies of angular correlations in the intensity of light scattered from randomly rough metal surfaces, that go beyond the factorization approximation, have been carried out. As a consequence, in addition to the memory and the time-reversed memory effects studied by earlier authors, known as the short-range C(1) correlations, the long-range C(2) correlations and the infinite-range C(3) correlations have been determined. The latter two correlation functions had been studied earlier in the scattering of light from volume disordered systems, but had not yet been studied in rough surface scattering. In addition, a new correlation function, called C(10), of the same order of magnitude as C(1) has been found, as well as another new correlation function, called C(1.5), that, along with C(2), displays peaks associated with the roughness-induced excitation of the surface electromagnetic waves supported by the vacuum-metal interface. The invalidity of the factorization approximation for weakly rough random surfaces has also been established in another set of calculations. Experimental studies of the memory and time-reversed memory effects have been carried out, as have studies of the effects of localized defects on angular correlations in the intensity of light scattered from random surfaces.

Theory of Wave Scattering From Random Rough Surfaces,

Theory of Wave Scattering From Random Rough Surfaces, PDF Author: J. A. Ogilvy
Publisher: CRC Press
ISBN:
Category : Art
Languages : en
Pages : 300

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Book Description
A review of theories developed for the study of acoustic, elastic and electromagnetic wave scattering from randomly rough surfaces, and a comprehensive summary of the latest techniques. Different theories are illustrated by experimental data.With applications in radar, sonar, ultrasonics and optics this book will be invaluable to graduate students, researchers and engineers.

Light Scattering and Nanoscale Surface Roughness

Light Scattering and Nanoscale Surface Roughness PDF Author: Alexei A. Maradudin
Publisher: Springer Science & Business Media
ISBN: 0387356592
Category : Science
Languages : en
Pages : 513

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Book Description
This book covers both experimental and theoretical aspects of nanoscale light scattering and surface roughness. Topics include: spherical particles located on a substrate; surface and buried interface roughness; surface roughness of polymer thin films; magnetic and thermal fluctuations at planar surfaces; speckle patterns; scattering of electromagnetic waves from a metal; multiple wavelength light scattering; nanoroughness standards.

Modern Analysis of Scattering Phenomena

Modern Analysis of Scattering Phenomena PDF Author: D. Maystre
Publisher: CRC Press
ISBN: 9780750301565
Category : Technology & Engineering
Languages : en
Pages : 214

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Book Description
Modern Analysis of Scattering Phenomena discusses the developments in the theory of multiple scattering and related experimental work. It covers multiple scattering phenomena and scattering in random media that underlie research in fields as diverse as condensed matter physics, atmospheric optics, ocean acoustics, radio physics, astronomy, chemistry, nonlinear media, seismology, and plasma physics. This volume will be of interest to all those working in scattering from optical- to micro-wavelength surfaces.

Surface Correlation Relationships in Rough Surface Scattering

Surface Correlation Relationships in Rough Surface Scattering PDF Author: R. J. Papa
Publisher:
ISBN:
Category :
Languages : en
Pages : 36

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Book Description
There are a number of approaches to the calculation of the electromagnetic scattering from rough surfaces. These techniques are important in the determination of the effects of the real environment on radar and communications systems. The models contain descriptions of the surface in terms of the statistical distribution of the heights and their degree of correlation. These features are then related to a normalized radar cross section for the terrain, sigma deg, through an electromagnetic analysis. In this report we are concerned with questions involving the application of physical optics principles to the analysis. This is important since this approach is used extensively both as a complete solution and as part of composite models. Secondly, we discussed several areas where the statistics and correlation have important roles in determining the scattering from a random rough surface. This is significant in that the usual assumption of a Gaussian distribution of heights with Gaussian correlation may not apply to all types surfaces. Power spectra results suggest that other forms would be more appropriate for some cases. In the beginning of this report, we examine statistical descriptors of a surface and establish the relationship between them and the conditions for applying a physical optics model to the scattering from that surface. We then examine the sensitivity of the distribution of scattered power to changes in the form of the surface height statistics and correlation function. Specifically, we examine the effect of three different correlation functions on the normalized bistatic cross section of a rough surface.

Multiple Scattering of Waves in Random Media and Random Rough Surfaces: Proceedings of an International Symposium Held in University Park, Pennsylvania on Jul 29-2 August, 1985

Multiple Scattering of Waves in Random Media and Random Rough Surfaces: Proceedings of an International Symposium Held in University Park, Pennsylvania on Jul 29-2 August, 1985 PDF Author: V. V. Varadan
Publisher:
ISBN:
Category :
Languages : en
Pages : 964

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Book Description
Partial contents: Simple Models for the Formation of Random Rough Surfaces; Fractal Viewpoint of Fracture; Theory of Ballistic Aggregation and Deposition; Effective Medium Approximation and the Multiple Scattering of Waves; The Application of Reciprocity and Field Equivalence Principles to Scattering from Random Media; Classical and Quantum Mechanical Wave Propagation in Close Packed Disordered Suspensions; Autocorrelation Function among Dense Random Scatterers; Two Dimensional Inversion of Leaf Area and Inclination Angle Distributions from Backscattered Data; Renormalization of an Inverse Scattering Theory for Gaussian Distributions; Dielectric Constant and Elastic Moduli of Inhomogeneous Media; Effective Medium Theory and Nonlocal Effects for Superlatices; Manifestations of Multiple Scattering Characteristics in Transionospheric Radio Signals; Ultrasonic Scattering in Porous Materials; Forward Optical Glory from Bubbles and Clouds of Bubbles in Liquids and Other Novel Directional Caustics; Piezoelectric, Ferrite and Chiral Polymer Composites; A Stochastic Model for the Effect of Sea Ice Ridges on Arctic Ocean Sound Propagation; Characterization of Rough Surfaces Using Microdensitometer Analysis of Electron Micrographs of Shadowed Surface Replicas; Interacting Magnetic Composite with a Superparamagnetic Latex; Curved Surface Scattering and Sound Transmission in a Refractive Medium.

Correlation scale effects in light scattering from rough surfaces

Correlation scale effects in light scattering from rough surfaces PDF Author: Alan Stewart Harley
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


Optical Interactions at Rough Surfaces

Optical Interactions at Rough Surfaces PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 14

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Book Description
The research carried out with support from Army Research Office Grant DAAH04-96-1-0187 was devoted to several areas of the scattering of light from, and its transmission through, randomly rough surfaces. These include changes in the spectrum of light due to its scattering front a randomly rough surface; the design of random surfaces that scatter light uniformly within a specified range of scattering angles, and produce no scattering outside this range; multiple-scattering effects in the second harmonic generation of light scattered from a random metal surface; the coexistence of ballistic wave propagation, diffusive wave transport, and wave localization in random waveguides; calculations of the elements of the Stokes matrix in conical scattering; the scattering of surface electromagnetic waves by surface defects; and new features in the angular intensity correlation functions of light scattered front random media.

Progress in Optics

Progress in Optics PDF Author: Emil Wolf
Publisher: Elsevier
ISBN: 0444514686
Category : Science
Languages : en
Pages : 461

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Book Description
Optics has become one of the most dynamic fields of science since the first volume of Progress in Optics was published, forty years ago. At the time of inception of this series, the first lasers were only just becoming operational, holography was in its infancy, subjects such as fiber optics, integrated optics and optoelectronics did not exist and quantum optics was the domain of only a few physicists. The term photonics had not yet been coined. Today these fields are flourishing and have become areas of specialisation for many science and engineering students and numerous research workers and engineers throughout the world. Some of the advances in these fields have been recognized by awarding Nobel prizes to seven physicists in the last twenty years. The volumes in this series which have appeared up to now contain 240 review articles by distinguished research workers, which have become permanent records for many important developments. They have helped optical scientists and optical engineers to stay abreast of their fields. There is no sign that developments in optics are slowing down or becoming less interesting. We confidently expect that, just like their predecessors, future volumes of Progress in Optics will faithfully record the most important advances that are being made in optics and related fields.

Experimental Studies of Multiple Scattering by Rough Surfaces

Experimental Studies of Multiple Scattering by Rough Surfaces PDF Author: Michael E. Knotts
Publisher:
ISBN:
Category : Multiple scattering (Physics)
Languages : en
Pages : 212

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Book Description